Objective:To study the preoperative predictors for lower extremity intermuscular venous thrombosis (IMVT) in patients with thoracolumbar fracture.Methods:A retrospective study was conducted to analyze the 421 spinal fracture patients who had been admitted to Department of Spinal Surgery, The Fourth Hospital of Wuhan from November 2023 to October 2024. The cohort included 110 males and 311 females, aged from 16 to 89 years. They were stratified into a thrombosis group (26 cases) and a control group (395 cases) based on the presence or absence of lower extremity IMVT. Univariate analysis was performed of the following variables: gender, age, body mass index, multisegmental spinal fractures, fracture location, Caprini thrombosis risk score, visual analogue scale (VAS) pain score, D-dimer level, prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time (TT), international normalized ratio (INR), fibrinogen, coagulation factor activity assay, fibrinogen level, estimated fibrinolytic ratio, clotting time, 30-minute fibrinolytic ratio, coagulation comprehensive index, clot mechanical strength, platelet function, and fibrin generation rate. The variables with a significance level of P<0.05 in the univariate analysis were further analyzed using multivariate logistic regression to identify the independent risk factors for lower extremity IMVT. The predictive efficacy of these factors was evaluated using receiver operating characteristic (ROC) curve analysis. Results:Comparisons between the 2 groups showed that age, multisegmental spinal fractures, Caprini thrombotic risk score, and D-dimer level were variables with P<0.05. Binary logistic regression analysis of the above variables showed that a high Caprini thrombotic risk score, a high D-dimer level, and multisegmental spinal fractures were independent risk factors for preoperative lower extremity IMVT ( P<0.05). The ROC plot suggested an optimal cutoff point: a Caprini thrombotic risk score of 5 and a D-dimer level of 2.57 mg/L. Combination of Caprini thrombotic risk score, D-dimer level, and multisegmental spinal fractures demonstrated a sensitivity of 88.5%, a specificity of 71.9%, and an area under the curve (AUC) of 0.881 for diagnosis of lower extremity IMVT. Conclusions:The Caprini thrombosis risk score and presence of multisegmental spinal fractures are critical indicators for the preoperative risk of lower extremity IMVT in patients with thoracolumbar fracture. For individuals with a low Caprini thrombosis risk score, a D-dimer test is necessary in combination to determine the necessity of color Doppler ultrasound examination.

Objective:To study the preoperative predictors for lower extremity intermuscular venous thrombosis (IMVT) in patients with thoracolumbar fracture.Methods:A retrospective study was conducted to analyze the 421 spinal fracture patients who had been admitted to Department of Spinal Surgery, The Fourth Hospital of Wuhan from November 2023 to October 2024. The cohort included 110 males and 311 females, aged from 16 to 89 years. They were stratified into a thrombosis group (26 cases) and a control group (395 cases) based on the presence or absence of lower extremity IMVT. Univariate analysis was performed of the following variables: gender, age, body mass index, multisegmental spinal fractures, fracture location, Caprini thrombosis risk score, visual analogue scale (VAS) pain score, D-dimer level, prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time (TT), international normalized ratio (INR), fibrinogen, coagulation factor activity assay, fibrinogen level, estimated fibrinolytic ratio, clotting time, 30-minute fibrinolytic ratio, coagulation comprehensive index, clot mechanical strength, platelet function, and fibrin generation rate. The variables with a significance level of P<0.05 in the univariate analysis were further analyzed using multivariate logistic regression to identify the independent risk factors for lower extremity IMVT. The predictive efficacy of these factors was evaluated using receiver operating characteristic (ROC) curve analysis. Results:Comparisons between the 2 groups showed that age, multisegmental spinal fractures, Caprini thrombotic risk score, and D-dimer level were variables with P<0.05. Binary logistic regression analysis of the above variables showed that a high Caprini thrombotic risk score, a high D-dimer level, and multisegmental spinal fractures were independent risk factors for preoperative lower extremity IMVT ( P<0.05). The ROC plot suggested an optimal cutoff point: a Caprini thrombotic risk score of 5 and a D-dimer level of 2.57 mg/L. Combination of Caprini thrombotic risk score, D-dimer level, and multisegmental spinal fractures demonstrated a sensitivity of 88.5%, a specificity of 71.9%, and an area under the curve (AUC) of 0.881 for diagnosis of lower extremity IMVT. Conclusions:The Caprini thrombosis risk score and presence of multisegmental spinal fractures are critical indicators for the preoperative risk of lower extremity IMVT in patients with thoracolumbar fracture. For individuals with a low Caprini thrombosis risk score, a D-dimer test is necessary in combination to determine the necessity of color Doppler ultrasound examination.

Objective:To discuss the clinical curative effect of the treatment of bundling bone fragment with figure-of-eight suture through double bone tunnels in the chronic bong mallet finger.Methods:A retrospective analysis was performed on patients with chronic bong mallet fingers who underwent surgery in the Department of Hand and Foot Microsurgery of Nanjing Jiangbei Hospital from May 2021 to February 2023. During the procedure, made into transverse double bone tunnels on the base of the distal phalanx with 0. 8 mm Kirschner wire, bundling bone fragment with figure-of-eight suture through double bone tunnels, then fixed with Kirschner wire elastic compression. Removal of the Kirschner wire 3 weeks after the procedure, the active flexion and extension range of the joints of the affected finger and the corresponding finger were measured at the last follow-up, then the range of motion (ROM) of the distal interphalangeal joint (DIPJ) and total action movement (TAM) of the fingers (affected and healthy finger) were recorded. The curative effects were evaluated according to the TAM system of the American Association of Hand Surgeons, including 4 grades: excellent, good, fair, and poor. SPSS 13. 0 software was used for statistical analysis of the data, and the measurement data conforming to normal distribution were expressed as Mean ± SD. The ROM of DIPJ and TAM of the affected finger were compared with the corresponding healthy finger 6 months after surgery by a paired sample t test. P<0. 05 indicates that the difference is statistically significant. Results:A total of 30 patients (30 digits) were enrolled, including 19 males and 11 females, and the age ranged from 18 to 62 years old, with an average age of 31 years old. The time from injury to operation was 24 to 65 days (mean of 35 days) . According to Wehbe and Schneider classification, there were 8 cases of type Ⅰa, 6 cases of type Ⅰb, 7 cases of type Ⅱa, 5 cases of type Ⅱb, 2 cases of type Ⅲa and 2 cases of type Ⅲb. All incisions healed well, the intraoperative blood loss was minimal, with no infection. All 30 cases were followed up for 6 to 7 months. All fractures were well aligned and healed, malformed fingers were completely corrected, and no needle tunnel infection or needle breakage were observed. At the last follow-up, the differences of the ROM of the DIPJ [ (30. 2±3. 5) °vs. (30. 4±3. 3) °, t=2. 57, P=0. 463] and the TAM [ (235. 3± 3. 6) ° vs. (237. 7± 4. 2) °, t=1. 78, P= 0. 247 ] between the affected and healthy fingers were not statistically significant. Finger function assessment: 27 cases were excellent, and 3 cases were good, and the excellent and good rate was 100%. Conclusion:Satisfactory therapeutic outcome for the treatment of chronic bong mallet finger deformity can be achieved by bundling bone fragment with figure-of-eight suture through double bone tunnels. It is an effective and practical method.

Objective:To discuss the clinical curative effect of the treatment of bundling bone fragment with figure-of-eight suture through double bone tunnels in the chronic bony mallet finger.Methods:A retrospective analysis was performed on patients with chronic bony mallet fingers who underwent surgery in the Department of Hand and Foot Microsurgery of Nanjing Jiangbei Hospital from May 2021 to February 2023. During the procedure, made into transverse double bone tunnels on the base of the distal phalanx with 0.8 mm Kirschner wire, bundling bone fragment with figure-of-eight suture through double bone tunnels, then fixed with Kirschner wire elastic compression. Removal of the Kirschner wire 3 weeks after the procedure, the active flexion and extension range of the joints of the affected finger and the corresponding finger were measured at the last follow-up, then the range of motion (ROM) of the distal interphalangeal joint (DIPJ) and total action movement (TAM) of the fingers (affected and healthy finger) were recorded. The curative effects were evaluated according to the TAM system of the American Association of Hand Surgeons, including 4 grades: excellent, good, fair, and poor. SPSS 13.0 software was used for statistical analysis of the data, and the measurement data conforming to normal distribution were expressed as Mean±SD. The ROM of DIPJ and TAM of the affected finger were compared with the corresponding healthy finger 6 months after surgery by a paired sample t-test. P<0.05 indicated that the difference was statistically significant. Results:A total of 30 patients (30 digits) were enrolled, including 19 males and 11 females, and the age ranged from 18 to 62 years old, with an average age of 31 years old. The time from injury to operation was 24 to 65 days (mean of 35 days). According to Wehbe and Schneider classification, there were 8 cases of type Ⅰa, 6 cases of type Ⅰb, 7 cases of type Ⅱa, 5 cases of type Ⅱb, 2 cases of type Ⅲa and 2 cases of type Ⅲb. All incisions healed well, the intraoperative blood loss was minimal, with no infection. All 30 cases were followed up for 6 to 7 months. All fractures were well aligned and healed, malformed fingers were completely corrected, and no needle tunnel infection or needle breakage were observed. At the last follow-up, the differences of the ROM of the DIPJ [(30.2±3.5)° vs. (30.4±3.3)°, t=2.57, P=0.463] and the TAM [(235.3±3.6)° vs. (237.7±4.2)°, t=1.78, P=0.247] between the affected and healthy fingers were not statistically significant. Finger function assessment: 27 cases were excellent, and 3 cases were good, and the excellent and good rate was 100%. Conclusion:Satisfactory therapeutic outcome for the treatment of chronic bony mallet finger deformity can be achieved by bundling bone fragment with figure-of-eight suture through double bone tunnels. It is an effective and practical method.

Objective:To discuss the clinical curative effect and feasibility of the combination therapy of the minimally invasive percutaneous quantitative suture technique eight times and Kirschner wire elastic fixation in the treatment of mallet finger.Methods:A retrospective analysis was performed on patients with tendon zone Ⅰ rupture of tendinous mallet fingers who underwent surgery in the Department of Hand and Foot Microsurgery of Nanjing Jiangbei Hospital from July 2021 to June 2023. During the procedure, firstly, the extensor digitalis tendon in the zone Ⅰ was sutured percutaneous with 3-0 thread monofilament sutures in the "quantitative 8-stitch method " according to the pre-marked number sequence of 1 to 8, and fixed at the base of the distal phalanx via a constructed bone tunnel. Secondly, the distal interphalangeal joint (DIPJ) was fixed elastically with Kirschner wire, without damage to the articular surface. Four to five weeks after the operation, the Kirschner wire was removed, and flexion and extension of the affected finger were gradually increased. At the last follow-up, the range of motion (ROM) and the total action motion (TAM) of the finger were recorded, and the healthy side of the ROM and TAM slightly differed. Finger function was evaluated following the American Association of Hand Surgeons TAM system. It was divided into four grades: excellent, good, fair and poor. SPSS 15.0 software was used for statistical analysis. Measurement data conforming to normal distribution were expressed as Mean±SD, and a paired sample t-test was used for comparison between the affected finger and the corresponding healthy finger. Results:A total of 30 patients (30 digits) were enrolled, including 19 males and 11 females with the age of (38.5±4.3) years (14 to 71 years). All were single closed injuries. Time from injury to operation was (1.1±0.4) d (3 h to 7 d). The distance of tendon break was (8.4±0.5) mm (4 to 12 mm). Mallet finger deformities were all corrected postoperatively. There were no complications such as scar, exposed suture, nail tract infection, or nail removal on the dorsal side of the affected finger. All patients were followed up for (7.5±1.3) months (6-13 months). At the last follow-up, the ROM of DIPJ of the affected finger and the corresponding healthy finger were 43.28°±2.03° and 44.15°±1.12°, respectively, with no statistical significance ( t=1.32, P=0.084). TAM of the affected finger and the corresponding healthy finger were 240.15°±5.13° and 242.13°±3.11°, respectively, with no significant difference ( t=2.12, P=0.135). According to TAM system evaluation criteria, excellent in 27 cases, good in 3 cases, excellent and good rate was 100% (30/30). Conclusion:The combination of the minimally invasive percutaneous quantitative suture technique eight times and Kirschner wire elastic fixation has a satisfactory treatment outcome in the mallet finger, and there is no damage to the DIPJ surface. It is a simple, safe, effective method with minimal invasion.

Objective:To discuss the clinical curative effect of the treatment of bundling bone fragment with figure-of-eight suture through double bone tunnels in the chronic bong mallet finger.Methods:A retrospective analysis was performed on patients with chronic bong mallet fingers who underwent surgery in the Department of Hand and Foot Microsurgery of Nanjing Jiangbei Hospital from May 2021 to February 2023. During the procedure, made into transverse double bone tunnels on the base of the distal phalanx with 0. 8 mm Kirschner wire, bundling bone fragment with figure-of-eight suture through double bone tunnels, then fixed with Kirschner wire elastic compression. Removal of the Kirschner wire 3 weeks after the procedure, the active flexion and extension range of the joints of the affected finger and the corresponding finger were measured at the last follow-up, then the range of motion (ROM) of the distal interphalangeal joint (DIPJ) and total action movement (TAM) of the fingers (affected and healthy finger) were recorded. The curative effects were evaluated according to the TAM system of the American Association of Hand Surgeons, including 4 grades: excellent, good, fair, and poor. SPSS 13. 0 software was used for statistical analysis of the data, and the measurement data conforming to normal distribution were expressed as Mean ± SD. The ROM of DIPJ and TAM of the affected finger were compared with the corresponding healthy finger 6 months after surgery by a paired sample t test. P<0. 05 indicates that the difference is statistically significant. Results:A total of 30 patients (30 digits) were enrolled, including 19 males and 11 females, and the age ranged from 18 to 62 years old, with an average age of 31 years old. The time from injury to operation was 24 to 65 days (mean of 35 days) . According to Wehbe and Schneider classification, there were 8 cases of type Ⅰa, 6 cases of type Ⅰb, 7 cases of type Ⅱa, 5 cases of type Ⅱb, 2 cases of type Ⅲa and 2 cases of type Ⅲb. All incisions healed well, the intraoperative blood loss was minimal, with no infection. All 30 cases were followed up for 6 to 7 months. All fractures were well aligned and healed, malformed fingers were completely corrected, and no needle tunnel infection or needle breakage were observed. At the last follow-up, the differences of the ROM of the DIPJ [ (30. 2±3. 5) °vs. (30. 4±3. 3) °, t=2. 57, P=0. 463] and the TAM [ (235. 3± 3. 6) ° vs. (237. 7± 4. 2) °, t=1. 78, P= 0. 247 ] between the affected and healthy fingers were not statistically significant. Finger function assessment: 27 cases were excellent, and 3 cases were good, and the excellent and good rate was 100%. Conclusion:Satisfactory therapeutic outcome for the treatment of chronic bong mallet finger deformity can be achieved by bundling bone fragment with figure-of-eight suture through double bone tunnels. It is an effective and practical method.

Objective:To discuss the clinical curative effect of the treatment of bundling bone fragment with figure-of-eight suture through double bone tunnels in the chronic bony mallet finger.Methods:A retrospective analysis was performed on patients with chronic bony mallet fingers who underwent surgery in the Department of Hand and Foot Microsurgery of Nanjing Jiangbei Hospital from May 2021 to February 2023. During the procedure, made into transverse double bone tunnels on the base of the distal phalanx with 0.8 mm Kirschner wire, bundling bone fragment with figure-of-eight suture through double bone tunnels, then fixed with Kirschner wire elastic compression. Removal of the Kirschner wire 3 weeks after the procedure, the active flexion and extension range of the joints of the affected finger and the corresponding finger were measured at the last follow-up, then the range of motion (ROM) of the distal interphalangeal joint (DIPJ) and total action movement (TAM) of the fingers (affected and healthy finger) were recorded. The curative effects were evaluated according to the TAM system of the American Association of Hand Surgeons, including 4 grades: excellent, good, fair, and poor. SPSS 13.0 software was used for statistical analysis of the data, and the measurement data conforming to normal distribution were expressed as Mean±SD. The ROM of DIPJ and TAM of the affected finger were compared with the corresponding healthy finger 6 months after surgery by a paired sample t-test. P<0.05 indicated that the difference was statistically significant. Results:A total of 30 patients (30 digits) were enrolled, including 19 males and 11 females, and the age ranged from 18 to 62 years old, with an average age of 31 years old. The time from injury to operation was 24 to 65 days (mean of 35 days). According to Wehbe and Schneider classification, there were 8 cases of type Ⅰa, 6 cases of type Ⅰb, 7 cases of type Ⅱa, 5 cases of type Ⅱb, 2 cases of type Ⅲa and 2 cases of type Ⅲb. All incisions healed well, the intraoperative blood loss was minimal, with no infection. All 30 cases were followed up for 6 to 7 months. All fractures were well aligned and healed, malformed fingers were completely corrected, and no needle tunnel infection or needle breakage were observed. At the last follow-up, the differences of the ROM of the DIPJ [(30.2±3.5)° vs. (30.4±3.3)°, t=2.57, P=0.463] and the TAM [(235.3±3.6)° vs. (237.7±4.2)°, t=1.78, P=0.247] between the affected and healthy fingers were not statistically significant. Finger function assessment: 27 cases were excellent, and 3 cases were good, and the excellent and good rate was 100%. Conclusion:Satisfactory therapeutic outcome for the treatment of chronic bony mallet finger deformity can be achieved by bundling bone fragment with figure-of-eight suture through double bone tunnels. It is an effective and practical method.

Objective:To discuss the clinical curative effect and feasibility of the combination therapy of the minimally invasive percutaneous quantitative suture technique eight times and Kirschner wire elastic fixation in the treatment of mallet finger.Methods:A retrospective analysis was performed on patients with tendon zone Ⅰ rupture of tendinous mallet fingers who underwent surgery in the Department of Hand and Foot Microsurgery of Nanjing Jiangbei Hospital from July 2021 to June 2023. During the procedure, firstly, the extensor digitalis tendon in the zone Ⅰ was sutured percutaneous with 3-0 thread monofilament sutures in the "quantitative 8-stitch method " according to the pre-marked number sequence of 1 to 8, and fixed at the base of the distal phalanx via a constructed bone tunnel. Secondly, the distal interphalangeal joint (DIPJ) was fixed elastically with Kirschner wire, without damage to the articular surface. Four to five weeks after the operation, the Kirschner wire was removed, and flexion and extension of the affected finger were gradually increased. At the last follow-up, the range of motion (ROM) and the total action motion (TAM) of the finger were recorded, and the healthy side of the ROM and TAM slightly differed. Finger function was evaluated following the American Association of Hand Surgeons TAM system. It was divided into four grades: excellent, good, fair and poor. SPSS 15.0 software was used for statistical analysis. Measurement data conforming to normal distribution were expressed as Mean±SD, and a paired sample t-test was used for comparison between the affected finger and the corresponding healthy finger. Results:A total of 30 patients (30 digits) were enrolled, including 19 males and 11 females with the age of (38.5±4.3) years (14 to 71 years). All were single closed injuries. Time from injury to operation was (1.1±0.4) d (3 h to 7 d). The distance of tendon break was (8.4±0.5) mm (4 to 12 mm). Mallet finger deformities were all corrected postoperatively. There were no complications such as scar, exposed suture, nail tract infection, or nail removal on the dorsal side of the affected finger. All patients were followed up for (7.5±1.3) months (6-13 months). At the last follow-up, the ROM of DIPJ of the affected finger and the corresponding healthy finger were 43.28°±2.03° and 44.15°±1.12°, respectively, with no statistical significance ( t=1.32, P=0.084). TAM of the affected finger and the corresponding healthy finger were 240.15°±5.13° and 242.13°±3.11°, respectively, with no significant difference ( t=2.12, P=0.135). According to TAM system evaluation criteria, excellent in 27 cases, good in 3 cases, excellent and good rate was 100% (30/30). Conclusion:The combination of the minimally invasive percutaneous quantitative suture technique eight times and Kirschner wire elastic fixation has a satisfactory treatment outcome in the mallet finger, and there is no damage to the DIPJ surface. It is a simple, safe, effective method with minimal invasion.

Endodontic microsurgery is a vital treatment modality for teeth with persistent periradicular pathoses that have not responded to nonsurgical retreatment. The principle is to determine the reason for failure, completely eliminate the infection and promote periapical healing. Within recent years, endodontic microsurgery has evolved to become standardized and presents with a high success rate. However, its outcome is still influenced by many factors, including anatomy, periodontal condition, crown-to-root ratio, occlusion, the type of periradicular lesion, and prosthesis. Moreover, endodontists always concentrate on “the apex”, paying little attention to the general preoperative evaluation, accurate diagnosis, and comprehensive treatment plan. This article reviews the latest literature on these issues and the clinical experience of our research group and discusses the correlation between endodontic microsurgery and other oral disciplines, including periodontology, prosthodontics, oral implantology, oral and maxillofacial surgery and orthodontics. The oral interdisciplinary assessment should be made with comprehensive consideration of the root canal system, periradicular lesion, adjacent anatomical relationships, periodontal condition, occlusion, and esthetic rehabilitation. Based on these findings, the continuity of treatment will be optimized, and the best treatment plan will be proposed to provide clinical strategies for the diagnosis and treatment of complex periradicular diseases.

Objective To explore the composition principles of prescriptions for simple obesity based on the analysis of medical literature issued in recently 30 years about Chinese medicine for simple obesity. Methods We collected literature of Chinese medicine in treating simple obesity from VIP, CNKI, Wanfang, CBM and CMCC/CMCI databases, and screened out the formulas for simple obesity to establish a formula database. And then the medication rules were figured out with the Traditional Chinese medicine Inheritance Support System version 2.5 (TCMISS 2.5) software. Results A total of 57 formulas were screened out. And the top 10 herbs with highest occurrence frequency in the prescriptions were Poria, Rhizoma Atractylodis Macrocephalae, Rhizoma Alismatis, Radix et Rhizoma Rhei, Fructus Crataegi, Radix Astragali, Radix Glycyrrhizae, Folium Nelumbinis, Pericarpium Citri Reticulatae and Semen Cassiae. After data mining, we got 13 high-frequency herb-pair combinations and 31 core combinations, and 8 new prescriptions were extracted. Conclusion The research has achieved the quantitative description of the relationship between the Chinese medicines, the extraction of the core combinations and the discovery of new Chinese medicine prescriptions for simple obesity. The results will provide references for the development of new Chinese medicines for the treatment of simple obesity .