1.Clinical and pathological analysis of 345 cases of vulvar lichen sclerosus and a preliminary study on the frequency of maintenance treatment.
Xiao Yi SUN ; Yin Ping XIAO ; Yi Xin SUN ; Qi ZHANG ; Qing CONG
Chinese Journal of Obstetrics and Gynecology 2024;59(1):56-63
		                        		
		                        			
		                        			Objective: To analyze and summarize the clinical and pathological characteristics, management, and efficacy of patients with vulvar lichen sclerosus (VLS) through a single center large sample study, and preliminarily to explore the frequency of maintenance treatment medication for VLS. Methods: The clinical data of VLS patients in Obstetrics and Gynecology Hospital of Fudan University from 2018 to 2021 were retrospectively collected. The clinicopathological characteristics (patients' age, course of disease, complicated disease history, family history, symptoms, signs and pathology), treatment and effects were retrospectively analyzed. The patients in the maintenance treatment stage were followed up regularly to explore the minimum frequency of individual medication to maintain the stability of the disease. Results: (1) General situation: a total of 345 patients with VLS were included in this study. The average age was (50.4±14.7) years (ranged from 8 to 84 years old), prevalence was highest in the 50-59 years group (30.1%, 104/345). Immune diseases occurred in 18.6% (33/177) of patients, 24.3% (43/177) of patients had allergic skin diseases, and 5.6% (10/177) of the patients' immediate family members had chronic vulvar pruritus or vulvar hypopigmentation. (2) Clinical features: the most common symptom was vulvar pruritus (96.1%, 196/204) among 204 patients with recorded symptoms. The most common sign was hypopigmentation of the vulva (96.3%, 206/214). The most common involved sites were labia minora (70.3%, 142/202), labia majora (67.8%, 137/202), and labial sulcus (59.4%, 120/202). The cumulative number of sites involved in 62 vulvar atrophy patients (2.7±1.1) was significantly higher than that in 152 non-atrophy patients (2.2±1.0; t=3.48, P=0.001). The course of vulvar atrophy was (9.3±8.5) years, which was significantly longer than that of non-atrophy patients [(6.6±5.6) years; t=2.04, P=0.046]. (3) Pathological features: among the 286 patients with electronic pathological sections, the most common pathological feature in the epidermis was epithelial nail process passivation (71.3%, 204/286). The common pathological features in the dermis were interstitial collagenization (84.6%, 242/286), and inflammatory cell infiltration (73.8%, 211/286). (4) Treatment: 177 patients received standardized treatment after diagnosis and were followed up regularly in our hospital. In the initial treatment stage, 26.0% (46/177) of the patients were treated with 0.05% clobetasol propionate cream, and 74.0% (131/177) of the patients were treated with 0.1% mometasone furoate ointment. The complete remission rates of the two methods were respectively 80.4% (37/46) and 74.0% (97/131), and there was no statistically significant difference (χ²=0.76, P=0.385). During maintenance treatment, 27.1% (48/177) of the patients took the medication twice a week, 35.0% (62/177) took the medication once a week, and 37.9% (67/177) took the medication once every 10 days. During follow-up after 6 months of maintenance treatment, there were no patients with recurrence of pruritus or progression of vulvar signs. Conclusions: The majority of VLS patients have itching, hypopigmentation, involvement of labia minora and labia majora, progressive atrophy, and inflammatory infiltration of dermis. Local treatments of mometasone furoate and clobetasol propionate have good initial therapeutic effects. The frequency exploration of individualized maintenance treatment could minimize the occurrence of adverse reactions when ensuring the stability of the patients' condition.
		                        		
		                        		
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Child
		                        			;
		                        		
		                        			Adolescent
		                        			;
		                        		
		                        			Young Adult
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Vulvar Lichen Sclerosus/pathology*
		                        			;
		                        		
		                        			Clobetasol/adverse effects*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Mometasone Furoate/therapeutic use*
		                        			;
		                        		
		                        			Pruritus/drug therapy*
		                        			;
		                        		
		                        			Atrophy/drug therapy*
		                        			;
		                        		
		                        			Hypopigmentation/drug therapy*
		                        			
		                        		
		                        	
2.Hotspots and difficulties of biliary surgery in older patients.
Zongming ZHANG ; Jiahong DONG ; Fangcai LIN ; Qiusheng WANG ; Zhi XU ; Xiaodong HE ; Shizhong YANG ; Youwei LI ; Limin LIU ; Chong ZHANG ; Zhuo LIU ; Yue ZHAO ; Haiyan YANG ; Shuyou PENG
Chinese Medical Journal 2023;136(9):1037-1046
		                        		
		                        			
		                        			With the accelerated aging society in China, the incidence of biliary surgical diseases in the elderly has increased significantly. The clinical characteristics of these patients indicate that improving treatment outcomes and realizing healthy aging are worthy of attention. How to effectively improve the treatment effect of geriatric biliary surgical diseases has attracted widespread attention. This paper reviews and comments on the hotspots and difficulties of biliary surgery in older patients from six aspects: (1) higher morbidity associated with an aging society, (2) prevention and control of pre-operative risks, (3) extending the indications of laparoscopic surgery, (4) urgent standardization of minimally invasive surgery, (5) precise technological progress in hepatobiliary surgery, and (6) guarantee of peri-operative safety. It is of great significance to fully understand the focus of controversy, actively make use of its favorable factors, and effectively avoid its unfavorable factors, for further improving the therapeutic effects of geriatric biliary surgical diseases, and thus benefits the vast older patients with biliary surgical diseases. Accordingly, a historical record with the highest age of 93 years for laparoscopic transcystic common bile duct exploration has been created by us recently.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Biliary Tract Surgical Procedures
		                        			;
		                        		
		                        			Gallstones
		                        			;
		                        		
		                        			Laparoscopy
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Aging
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
3.PAI-1 genetic polymorphisms influence septic patients' outcomes by regulating neutrophil activity.
Shaowei JIANG ; Yang WANG ; Liang CHEN ; Honghua MU ; Connor MEANEY ; Yiwen FAN ; Janesh PILLAY ; Hairong WANG ; Jincheng ZHANG ; Shuming PAN ; Chengjin GAO
Chinese Medical Journal 2023;136(16):1959-1966
		                        		
		                        			BACKGROUND:
		                        			Plasminogen activator inhibitor-1 (PAI-1) plays an important role in the pathophysiology of sepsis, but the exact mechanism remains debatable. In this study, we investigated the associations among the serum levels of PAI-1, the incidence of 4G/5G promoter PAI-1 gene polymorphisms, immunological indicators, and clinical outcomes in septic patients.
		                        		
		                        			METHODS:
		                        			A total of 181 patients aged 18-80 years with sepsis between November 2016 and August 2018 in the intensive care unit in the Xinhua Hospital were recruited in this retrospective study, with 28-day mortality as the primary outcome. The initial serum level of PAI-1 and the presence of rs1799768 single nucleotide polymorphisms (SNPs) were examined. Univariate logistic regression and multivariate analyses were performed to determine the factors associated with different genotypes of PAI-1, serum level of PAI-1, and 28-day mortality.
		                        		
		                        			RESULTS:
		                        			The logistic analysis suggested that a high serum level of PAI-1 was associated with the rs1799768 SNP of PAI-1 (4G/4G and 4G/5G) (Odds ratio [OR]: 2.49; 95% confidence interval [CI]: 1.09, 5.68). Furthermore, a high serum level of PAI-1 strongly influenced 28-day mortality (OR 3.36; 95% CI 1.51, 7.49). The expression and activation of neutrophils (OR 0.96; 95% CI 0.93, 0.99), as well as the changes in the expression patterns of cytokines and chemokine-associated neutrophils (OR: 1.00; 95% CI: 1.00, 1.00), were both regulated by the genotype of PAI-1.
		                        		
		                        			CONCLUSIONS
		                        			Genetic polymorphisms of PAI-1 can influence the serum levels of PAI-1, which might contribute to mortality by affecting neutrophil activity. Thus, patients with severe sepsis might clinically benefit from enhanced neutrophil clearance and the resolution of inflammation via the regulation of PAI-1 expression and activity.
		                        		
		                        		
		                        		
		                        			Adolescent
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Young Adult
		                        			;
		                        		
		                        			Genotype
		                        			;
		                        		
		                        			Neutrophils
		                        			;
		                        		
		                        			Plasminogen Activator Inhibitor 1/genetics*
		                        			;
		                        		
		                        			Polymorphism, Single Nucleotide/genetics*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Sepsis/genetics*
		                        			
		                        		
		                        	
4.Clinical Evaluation of a Vancomycin Dosage Strategy Based on a Serum Trough Concentration Model in Elderly Patients with Severe Pneumonia.
Wei YAN ; Xiao Yan SUN ; Meng WANG ; Fei Fan ZHAO ; Qing Tao ZHOU
Biomedical and Environmental Sciences 2023;36(5):397-405
		                        		
		                        			OBJECTIVE:
		                        			This study aimed to evaluate the clinical benefits of a vancomycin dosage strategy based on a serum trough concentration model in elderly patients.
		                        		
		                        			METHODS:
		                        			This prospective single-center, open-label, randomized controlled trial categorized 66 elderly patients with severe pneumonia into study and control groups. The control group received vancomycin using a regimen decided by the attending physician. Meanwhile, the study group received individualized vancomycin therapy with a dosing strategy based on a serum trough concentration model. The primary endpoint was the proportion of patients with serum trough concentrations reaching the target values. The secondary endpoints were clinical response, vancomycin treatment duration, and vancomycin-associated acute kidney injury (VA-AKI) occurrence.
		                        		
		                        			RESULTS:
		                        			All patients were at least 60 years old (median age = 81 years). The proportion of patients with target trough concentration achievement (≥ 15 mg/L) with the initial vancomycin regimen was significantly higher in the study group compared to the control group (75.8% vs. 42.4%, P = 0.006). Forty-five patients (68.2%) achieved clinical success, the median duration of vancomycin therapy was 10.0 days, and VA-AKI occurred in eight patients (12.1%). However, there were no significant differences in these parameters between the two groups. The model for predicting vancomycin trough concentrations was upgraded to: serum trough concentration (mg/L) = 17.194 - 0.104 × creatinine clearance rate (mL/min) + 0.313 × vancomycin daily dose [(mg/(kg∙d)].
		                        		
		                        			CONCLUSION
		                        			A vancomycin dosage strategy based on a serum trough concentration model can improve the proportion of patients achieving target trough concentrations in elderly patients with severe pneumonia.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Vancomycin/therapeutic use*
		                        			;
		                        		
		                        			Anti-Bacterial Agents/therapeutic use*
		                        			;
		                        		
		                        			Prospective Studies
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Acute Kidney Injury/drug therapy*
		                        			;
		                        		
		                        			Pneumonia/drug therapy*
		                        			
		                        		
		                        	
5.Pathological Types,Expression of Mismatch Repair Protein,Human Epidermal Growth Factor Receptor 2,and Pan-TRK,and Eostein-Barr Virus Infection in Patients With Colorectal Cancer Resected in Tibet.
Han-Huan LUO ; Zhen HUO ; BIANBAZHAXI ; Qian WANG ; DUOBULA ; NIMAZHUOMA ; Zhen DA ; Ping-Ping GUO
Acta Academiae Medicinae Sinicae 2023;45(3):422-428
		                        		
		                        			
		                        			Objective To study the pathological types,expression of mismatch repair protein,human epidermal growth factor receptor 2(HER2),and Pan-TRK,and Epstein-Barr virus(EBV)infection in patients with colorectal cancer resected in Tibet. Methods A total of 79 patients with colorectal cancer resected in Tibet Autonomous Region People's Hospital from December 2013 to July 2021 were enrolled in this study.The clinical and pathological data of the patients were collected.The expression of mismatch repair protein,HER2,and Pan-TRK was detected by immunohistochemical(IHC)staining,and detection of HER2 gene by fluorescence in situ hybridization(FISH)in the patients with HER2 IHC results of 2+ or above.EBV was detected by in situ hybridization with EBV-encoded small RNA. Results A total of 79 colorectal cancer patients were included in this study,with the male-to-female ratio of 1.26:1 and the mean age of(57.06±12.74)years(24-83 years).Among them,4 patients received preoperative neoadjuvant therapy.Colonic cancer and rectal cancer occurred in 57(57/79,72.15%,including 31 and 26 in the right colon and left colon,respectively)and 22(22/79,27.85%)patients,respectively.The maximum diameter of tumor varied within the range of 1-20 cm,with the mean of(6.61±3.33)cm.Among the 79 colorectal cancer patients,75(75/79,94.94%)patients showed adenocarcinoma.Lymph node metastasis occurred in 12(12/21,57.14%)out of the 21 patients with severe tumor budding,13(13/23,56.52%)out of the 23 patients with moderate tumor budding,and 2(2/31,6.45%)out of the 31 patients with mild tumor budding,respectively.The lymph node metastasis rate showed differences between the patients with severe/moderate tumor budding and the patients with mild tumor budding(all P<0.001).The IHC staining showed that mismatch repair protein was negative in 10(10/65,15.38%)patients,including 5 patients with both MSH2 and MSH6 negative,4 patients with both MLH1 and PMS2 negative,and 1 patient with MSH6 negative.Pan-TRK was negative in 65 patients.The IHC results of HER2 showed 0 or 1+ in 60 patients and 2+ in 5 patients.FISH showed no positive signal in the 5 patients with HER2 IHC results of 2+.The detection with EBV-encoded small RNA showed positive result in 1(1/65,1.54%)patient. Conclusions Non-specific adenocarcinoma of the right colon is the most common in the patients with colorectal cancer resected in Tibet,and 15% of the patients showed mismatch repair protein defects.EBV-associated colorectal carcer is rare,Pan-TRK expression and HER2 gene amplification are seldom.The colorectal cancer patients with moderate and severe tumor budding are more likely to have lymph node metastasis.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Adenocarcinoma
		                        			;
		                        		
		                        			Biomarkers, Tumor/genetics*
		                        			;
		                        		
		                        			Colorectal Neoplasms/pathology*
		                        			;
		                        		
		                        			DNA Mismatch Repair
		                        			;
		                        		
		                        			DNA-Binding Proteins/genetics*
		                        			;
		                        		
		                        			Epstein-Barr Virus Infections/diagnosis*
		                        			;
		                        		
		                        			Herpesvirus 4, Human/metabolism*
		                        			;
		                        		
		                        			In Situ Hybridization, Fluorescence
		                        			;
		                        		
		                        			Lymphatic Metastasis
		                        			;
		                        		
		                        			Tibet
		                        			;
		                        		
		                        			Young Adult
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			
		                        		
		                        	
6.Primary Ovarian Small Cell Carcinoma of Pulmonary Type: Analysis of 6 Cases and Review of 31 Cases in the Literatures.
Xu CHEN ; Hong-Ling LIU ; Jin-Sui WANG ; Feng-Hui ZHAO
Chinese Medical Sciences Journal 2023;38(2):130-137
		                        		
		                        			
		                        			Objective Primary ovarian small cell carcinoma of pulmonary type (SCCOPT) is a rare ovarian tumor with a poor prognosis. The platinum-based chemotherapy is the standard treatment. However, there is little research on the clinical characteristics of SCCOPT and the potential benefits of other treatments due to its low incidence. The study aims to investigate clinicopathological characteristics and treatment of SCCOPT.Methods We summarized the clinical, imaging, laboratorical and pathological characteristics of 37 SCCOPT cases, in which 6 cases were admitted to the Gansu Provincial Hospital from the year of 2008 to 2022 and 31 cases reported in 17 English and 3 Chinese literatures.Results The median age of the studied SCCOPT cases (n=37) was 56.00 (range, 22-80) years. Almost 80% of them had a stage Ⅲ or Ⅳ tumor. All patients underwent an operation and postoperative chemotherapy. Nevertheless, all cases had a poor prognosis, with a median overall survival time of 12 months. Immunohistochemically, the SCCOPT of all patients showed positive expressions of epithelial markers, such as CD56 and sex-determining region of Y chromosome-related high-mobility-group box 2 (SOX-2), and negative expressions of estrogen receptor, progesterone receptor, vimentin, Leu-7, and somatostatin receptor 2. The tumor of above 80% cases expressed synaptophysin. Only a few cases expressed neuron-specific enolase, chromogranin A, and thyroid transcription factor-1. Conclusions SCCOPT had a poor prognosis. SOX-2 could be a biomarker to be used to diagnose SCCOPT.
		                        		
		                        		
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Young Adult
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Carcinoma, Small Cell/pathology*
		                        			;
		                        		
		                        			Carcinoma, Ovarian Epithelial
		                        			;
		                        		
		                        			Ovarian Neoplasms/therapy*
		                        			;
		                        		
		                        			Prognosis
		                        			
		                        		
		                        	
7.Effectiveness validation of a novel comprehensive classification for intertrochanteric fractures.
Lukuan CUI ; Hao LIU ; Jiangjing WANG ; Huanhuan FAN ; Dapeng WANG ; Shuhui WANG ; Chi SONG
Chinese Journal of Reparative and Reconstructive Surgery 2023;37(4):417-422
		                        		
		                        			OBJECTIVE:
		                        			To validate the effectiveness of a novel comprehensive classification for intertrochanteric fracture (ITF).
		                        		
		                        			METHODS:
		                        			The study included 616 patients with ITF, including 279 males (45.29%) and 337 females (54.71%); the age ranged from 23 to 100 years, with an average of 72.5 years. Two orthopaedic residents (observers Ⅰ and Ⅱ) and two senior orthopaedic surgeons (observers Ⅲ and Ⅳ) were selected to classify the CT imaging data of 616 patients in a random order by using the AO/Orthopaedic Trauma Association (AO/OTA) classification of 1996/2007 edition, the AO/OTA classification of 2018 edition, and the novel comprehensive classification method at an interval of 1 month. Kappa consistency test was used to evaluate the intra-observer and inter-observer consistency of the three ITF classification systems.
		                        		
		                        			RESULTS:
		                        			The inter-observer consistency of the three classification systems evaluated by 4 observers twice showed that the 3 classification systems had strong inter-observer consistency. Among them, the κ value of the novel comprehensive classification was higher than that of the AO/OTA classification of 1996/2007 edition and 2018 edition, and the experience of observers had a certain impact on the classification results, and the inter-observer consistency of orthopaedic residents was slightly better than that of senior orthopaedic surgeons. The intra-observer consistency of two evaluations of three classification systems by 4 observers showed that the consistency of the novel comprehensive classification was better for the other 3 observers, except that the consistency of observer Ⅳ in the AO/OTA classification of 2018 version was slightly higher than that of the novel comprehensive classification. The results showed that the novel comprehensive classification has higher repeatability, and the intra-observer consistency of senior orthopaedic surgeons was better than that of orthopaedic residents.
		                        		
		                        			CONCLUSION
		                        			The novel comprehensive classification system has good intra- and inter-observer consistency, and has high validity in the classification of CT images of ITF patients; the experience of observers has a certain impact on the results of the three classification systems, and those with more experiences have higher intra-observer consistency.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Young Adult
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Observer Variation
		                        			;
		                        		
		                        			Reproducibility of Results
		                        			;
		                        		
		                        			Hip Fractures/surgery*
		                        			;
		                        		
		                        			Tomography, X-Ray Computed/methods*
		                        			;
		                        		
		                        			Radiography
		                        			
		                        		
		                        	
8.Risk factors for infections after arthroscopic rotator cuff repair.
Jin-Jun LAI ; Xiao-Hong YU ; Yun-Gen HU ; Da-Wei BI ; Lei HAN
China Journal of Orthopaedics and Traumatology 2023;36(4):348-351
		                        		
		                        			OBJECTIVE:
		                        			To explore risk factors for infections after arthroscopic rotator cuff repair, and improve the under standing for reducing infection.
		                        		
		                        			METHODS:
		                        			Clinical data of 2 591 patients who underwent arthroscopic rotator cuff repair from January 2019 to January 2022 were retrospectively analyzed, including 1 265 males and 1 326 females, aged from 25 to 82 years old with an average age of (51.5±15.6) years old. They were divided into infection group(n=18) and uninfected group(n=2 573) according to whether or not patients had postoperative infection. Gender, age, smoking, diabetes, body mass index, local closure within 1 month before operation, operation time, preventive use of antibiotics, and internal fixation implantation between two groups were recorded. Univariate Logistic regression analysis screened factors associated with infections after arthroscopic rotator cuff repair. Theresultswere entered into the multivariate logistic regression analysis, screening the high risk factors for infections after arthroscopic rotator cuff repair.
		                        		
		                        			RESULTS:
		                        			In 2 591 patients, 18 patients were infected after operation, infection rate was 0.69%. Univariate Logistic regression analysis showed that gender, age, operation time, antibiotic prophylaxis, internal fixation implantation were risk factors for infections after arthroscopic rotator cuff repair. Multivariate Logistic regression analysis showed male(OR=14.227), age≥65 years(OR=34.313), operation time≥2 h (OR=15.616), without antibiotic prophylaxis(OR=4.891), and internal fixation implantation(OR=5.103) were major risk factors for infection after arthroscopic rotator cuff repair(P<0.05).
		                        		
		                        			CONCLUSION
		                        			Male, age≥65 years, operation time≥2 h, without antibiotic prophylaxis and internal fixation implantation were independent risk factors for infection after arthroscopic rotator cuff repair. Early diagnosis and timely treatment should be carried out to reduce the incidence of infection.
		                        		
		                        		
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Rotator Cuff
		                        			;
		                        		
		                        			Rotator Cuff Injuries/surgery*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Arthroscopy/adverse effects*
		                        			;
		                        		
		                        			Risk Factors
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
9.Clinical and radiologic comparison between oblique lateral interbody fusion and minimally invasive transforaminal lumbar interbody fusion for degenerative lumbar spondylolisthesis.
Xiao CHEN ; Lei-Lei WU ; Ze-Cheng YANG ; Yu-Jin QIU
China Journal of Orthopaedics and Traumatology 2023;36(5):414-419
		                        		
		                        			OBJECTIVE:
		                        			To compare the short-term clinical efficacy and radiologic differences between oblique lateral interbody fusion(OLIF) and minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) for degenerative lumbar spondylolisthesis.
		                        		
		                        			METHODS:
		                        			A retrospective analysis was performed on 58 patients with lumbar spondylolisthesis treated with OLIF or MIS-TLIF from April 2019 to October 2020. Among them, 28 patients were treated with OLIF (OLIF group), including 15 males and 13 females aged 47 to 84 years old with an average age of (63.00±9.38) years. The other 30 patients were treated with MIS-TLIF(MIS-TLIF group), including 17 males and 13 females aged 43 to 78 years old with an average age of (61.13±11.10) years. General conditions, including operation time, intraoperative blood loss, postoperative drainage, complications, lying in bed, and hospitalization time were recorded in both groups. Radiological characteristics, including intervertebral disc height (DH), intervertebral foramen height (FH), and lumbar lordosis angle (LLA), were compared between two groups. The visual analogue scale (VAS) and Oswestry disability index (ODI) were used to evaluate the clinical effect.
		                        		
		                        			RESULTS:
		                        			The operation time, intraoperative blood loss, postoperative drainage, lying in bed, and hospitalization time in OLIF group were significantly less than those in the MIS-TLIF group (P<0.05). The intervertebral disc height and intervertebral foramen height were significantly improved in both groups after the operation (P<0.05). The lumbar lordosis angle in OLIF group was significantly improved compared to before the operation(P<0.05), but there was no significant difference in the MIS-TLIF group before and after operation(P>0.05). Postoperative intervertebral disc height, intervertebral foramen height, and lumbar lordosis were better in the OLIF group than in the MIS-TLIF group (P<0.05). The VAS and ODI of the OLIF group were lower than those of the MIS-TLIF group within 1 week and 1 month after the operation (P<0.05), and there were no significant differences in VAS and ODI at 3 and 6 months after the operation between the two groups(P>0.05). In the OLIF group, 1 case had paresthesia of the left lower extremity with flexion-hip weakness and 1 case had a collapse of the endplate after the operation;in the MIS-TLIF group, 2 cases had radiation pain of lower extremities after decompression.
		                        		
		                        			CONCLUSION
		                        			Compared with MIS-TLIF, OLIF results in less operative trauma, faster recovery, and better imaging performance after lumbar spine surgery.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Spondylolisthesis/surgery*
		                        			;
		                        		
		                        			Lumbar Vertebrae/surgery*
		                        			;
		                        		
		                        			Lordosis/surgery*
		                        			;
		                        		
		                        			Minimally Invasive Surgical Procedures/methods*
		                        			;
		                        		
		                        			Spinal Fusion/methods*
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Blood Loss, Surgical
		                        			;
		                        		
		                        			Postoperative Hemorrhage
		                        			
		                        		
		                        	
10.Comparison of clinical effect and muscle injury imaging between oblique lateral lumbar interbody fusion and transforaminal lumbar interbody fusion in the treatment of single-segment degenerative lumbar spinal stenosis.
San-Biao LI ; Sheng-Qian MEI ; Wen-Bin XU ; Xiang-Qian FANG ; Shun-Wu FAN ; Li-Bin HUANG
China Journal of Orthopaedics and Traumatology 2023;36(5):420-427
		                        		
		                        			OBJECTIVE:
		                        			To compare the efficacy and muscle injury imaging between oblique lateral lumbar interbody fusion (OLIF) and transforaminal lumbar interbody fusion (TLIF) in the treatment of single-segment degenerative lumbar spinal stenosis.
		                        		
		                        			METHODS:
		                        			The clinical data of 60 patients with single-segment degenerative lumbar spinal stenosis who underwent surgical treatment from January 2018 to October 2019 was retrospectively analyzed. The patients were divided into OLIF groups and TLIF group according to different surgical methods. The 30 patients in the OLIF group were treated with OLIF plus posterior intermuscular screw rod internal fixation. There were 13 males and 17 females, aged from 52 to 74 years old with an average of (62.6±8.3) years old. And 30 patients in the TLIF group were treated with TLIF via the left approach. There were 14 males and 16 females, aged from 50 to 81 years old with an average of (61.7±10.4) years old. General data including operative time, intraoperative blood loss, postoperative drainage volume, and complications were recorded for both groups. Radiologic data including disc height (DH), the left psoas major muscle, multifidus muscle, longissimus muscle area, T2-weighted image hyperintensity changes and interbody fusion or nonfusion were observed. Laboratory parameters including creatine kinase (CK) values on postoperative 1st and 5th days were analyzed. Visual analogue scale(VAS) and Oswestry disability index(ODI) were used to assess clinical efficacy.
		                        		
		                        			RESULTS:
		                        			There was no significant difference in the operative time between two groups(P>0.05). The OLIF group had significantly less intraoperative blood loss and postoperative drainage volume compared to the TLIF group(P<0.01). The OLIF group also had DH better recovery compared to the TLIF group (P<0.05). There were no significant differences in left psoas major muscle area and the hyperintensity degree before and after the operation in the OLIF group (P>0.05). Postoperativly, the area of the left multifidus muscle and longissimus muscle, as well as the mean of the left multifidus muscle and longissimus muscle in the OLIF group, were lower than those in the TLIF group (P<0.05) .On the 1st day and the 5th day after operation, CK level in the OLIF group was lower than that in the TLIF group(P<0.05). On the 3rd day after operation, the VAS of low back pain and leg pain in the OLIF group were lower than those in the TLIF group (P<0.05). There were no significant differences in the ODI of postoperative 12 months, low back and leg pain VAS at 3, 6, 12 months between the two groups(P>0.05). In the OLIF group, 1 case of left lower extremity skin temperature increased after the operation, and the sympathetic chain was considered to be injured during the operation, and 2 cases of left thigh anterior numbness occurred, which was considered to be related to psoas major muscle stretch, resulting in a complication rate of 10% (3/30). In the TLIF group, one patient had limited ankle dorsiflexion, which was related to nerve root traction, two patients had cerebrospinal fluid leakage, and the dural sac was torn during the operation, and one patient had incision fat liquefaction, which was related to paraspinal muscle dissection injury, resulting in a complication rate of 13% (4/30). All patients achieved interbody fusion without cage collapse during the 6- month follow-up.
		                        		
		                        			CONCLUSION
		                        			Both OLIF and TLIF are effective in the treatment of single-segment degenerative lumbar spinal stenosis. However, OLIF surgery has obviously advantages, including less intraoperative blood loss, less postoperative pain, and good recovery of intervertebral space height. From the changes in laboratory indexes of CK and the comparison of the left psoas major muscle, multifidus muscle, longissimus muscle area, and high signal intensity of T2 image on imaging, it can be seen that the degree of muscle damage and interference of OLIF surgery is lower than that of TLIF.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Spinal Stenosis/surgery*
		                        			;
		                        		
		                        			Blood Loss, Surgical
		                        			;
		                        		
		                        			Lumbar Vertebrae/surgery*
		                        			;
		                        		
		                        			Spinal Fusion/methods*
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Pain, Postoperative
		                        			;
		                        		
		                        			Muscles
		                        			;
		                        		
		                        			Minimally Invasive Surgical Procedures/methods*
		                        			
		                        		
		                        	
            
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