1.Usefulness of Reduction and Internal Fixation Using a 2.4 mm Hand Plating System in Type AO 33-A3 Distal Femur Fracture - Technical Note -
Bong-Ju LEE ; Ja-Yeong YOON ; Seungha WOO
Journal of the Korean Fracture Society 2023;36(1):25-28
Open reduction in an AO 33-A3 class distal femur transverse and comminuted fracture is often difficult due to frequent reduction loss during surgery, leading to longer operative time and increased blood loss intra-operation. In this study, the authors report a case in which the use of an offset grid plate (OsteoMed, USA) using 2.4 mm HPS (hand plating system) eased the process of fracture reduction and achieved a stable internal fixation, ultimately leading to successful osteosynthesis. The authors experienced no need for temporary fixation devices such as K-wires or screws, which are otherwise required to stabilize the reduction. The fracture reduction was stable throughout the primary fixation of the fracture using a locking plate and screws. The authors report that the advantage of the HPS plate is fitting into the cortical contour and providing stable maintenance of fracture reduction intra-operation, which would be beneficial in certain distal femoral fracture patterns.
2.Arteriography and Embolization of Lateral Inferior Genicular Artery of Recurrent Spontaneous Hemarthrosis after Total Knee Arthroplasty
Je-Gyun CHON ; Jong-Won KANG ; Ja-Yeong YOON ; Uitak JEONG
The Journal of the Korean Orthopaedic Association 2021;56(2):173-177
Recurrent spontaneous hemarthrosis is a relatively rare complication of total knee arthroplasty. This paper reports a case of a patient treated with arterial embolization for recurrent spontaneous hemarthrosis even after undergoing arthroscopic surgery. The patient had several relapses after total knee arthroplasty.
3.A retrospective cytohistological correlation of fine-needle aspiration cytology with classification by the Milan System for Reporting Salivary Gland Cytopathology
Ji Hyun PARK ; Yoon Jin CHA ; Ja Yeong SEO ; Jae Yol LIM ; Soon Won HONG
Journal of Pathology and Translational Medicine 2020;54(5):419-425
Background:
Before publication of the new classification system named the Milan System for Reporting Salivary Gland Cytopathology (MSRSGC) in 2018, there was no standard classification for salivary gland lesions obtained by fine-needle aspiration (FNA). We therefore aimed to evaluate the diagnostic utility of this system by retrospectively reviewing FNA samples using the MSRSGC and to determine their risk of developing into neoplasms and becoming malignant.
Methods:
Retrospective slide review and classification of salivary gland FNAs obtained over a 6-year period (2013–2018) at a single center were performed by two pathologists. The risks of neoplasm and malignancy for each category also were calculated.
Results:
This study surveyed 374 FNAs (371 patients) performed over a six-year period and selected 148 cases that included documented surgical follow-up (39.6%). Among the surgically treated cases, the distributions of FNA categories were as follows: non-diagnostic (ND; 16.9%), non-neoplastic (NN; 2.7%), atypia of undetermined significance (AUS; 3.4%), benign (BN; 54.7%), salivary gland neoplasm of uncertain malignant potential (SUMP; 10.1%), suspicious for malignancy (SM; 6.8%), and malignant (M; 5.4%). The risk of malignancy (ROM) was 24.0% for ND, 0% for NN, 40.0% for AUS, 2.5% for BN, 46.7% for SUMP, 100% for SM, and 87.5% for M. The overall diagnostic accuracy was 95.9% (142/148 cases).
Conclusions
The newly proposed MSRSGC appears to be a reliable system for classification of salivary gland lesions according to the associated ROM.
4.A Multi-institutional Study of Prevalence and Clinicopathologic Features of Non-invasive Follicular Thyroid Neoplasm with Papillary-like Nuclear Features (NIFTP) in Korea
Ja Yeong SEO ; Ji Hyun PARK ; Ju Yeon PYO ; Yoon Jin CHA ; Chan Kwon JUNG ; Dong Eun SONG ; Jeong Ja KWAK ; So Yeon PARK ; Hee Young NA ; Jang Hee KIM ; Jae Yeon SEOK ; Hee Sung KIM ; Soon Won HONG
Journal of Pathology and Translational Medicine 2019;53(6):378-385
BACKGROUND: In the present multi-institutional study, the prevalence and clinicopathologic characteristics of non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) were evaluated among Korean patients who underwent thyroidectomy for papillary thyroid carcinoma (PTC).METHODS: Data from 18,819 patients with PTC from eight university hospitals between January 2012 and February 2018 were retrospectively evaluated. Pathology reports of all PTCs and slides of potential NIFTP cases were reviewed. The strict criterion of no papillae was applied for the diagnosis of NIFTP. Due to assumptions regarding misclassification of NIFTP as non-PTC tumors, the lower boundary of NIFTP prevalence among PTCs was estimated. Mutational analysis for BRAF and three RAS isoforms was performed in 27 randomly selected NIFTP cases.RESULTS: The prevalence of NIFTP was 1.3% (238/18,819) of all PTCs when the same histologic criteria were applied for NIFTP regardless of the tumor size but decreased to 0.8% (152/18,819) when tumors ≥1 cm in size were included. The mean follow-up was 37.7 months and no patient with NIFTP had evidence of lymph node metastasis, distant metastasis, or disease recurrence during the follow-up period. A difference in prevalence of NIFTP before and after NIFTP introduction was not observed. BRAF(V600E) mutation was not found in NIFTP. The mutation rate for the three RAS genes was 55.6% (15/27).CONCLUSIONS: The low prevalence and indolent clinical outcome of NIFTP in Korea was confirmed using the largest number of cases to date. The introduction of NIFTP may have a small overall impact in Korean practice.
Carcinoma, Papillary
;
Diagnosis
;
Follow-Up Studies
;
Genes, ras
;
Hospitals, University
;
Humans
;
Korea
;
Lymph Nodes
;
Mutation Rate
;
Neoplasm Metastasis
;
Pathology
;
Prevalence
;
Protein Isoforms
;
Recurrence
;
Retrospective Studies
;
Thyroid Gland
;
Thyroid Neoplasms
;
Thyroidectomy
5.Current Updates in the Treatment of Achilles Tendon Rupture
Journal of Korean Foot and Ankle Society 2019;23(3):83-90
Achilles tendon rupture is a common sports injury encountered in younger populations. Various treatment methods are used for acute and chronic rupture. Several treatments for each condition are available, each having their advantages and disadvantages. In an acute rupture, surgical treatment may be a priority for younger patients or those wishing a quick return to play, but the long-term functional outcome is similar to non-surgical treatment. In addition, the re-rupture rate shows a slight difference between the two treatments. The clinical outcomes are similar regardless of the surgical treatment, but an accelerated rehabilitation program should be accompanied by good results. In chronic and neglected rupture, surgical treatment is preferred over non-surgical treatment. Treatments are chosen based on the size of the tendon defect. This article reviews the current updates in the treatment of Achilles tendon rupture that will help clinicians choose the appropriate treatment.
Achilles Tendon
;
Athletic Injuries
;
Humans
;
Rehabilitation
;
Return to Sport
;
Rupture
;
Tendons
6.Modified Tension Band Wiring Using FiberWire for Patellar Fractures
Bong Ju LEE ; Jegyun CHON ; Ja Yeong YOON ; Deukhee JUNG
Clinics in Orthopedic Surgery 2019;11(2):244-248
In comminuted patellar fractures, we performed modified tension band wiring using a FiberWire (Arthrex) instead of the conventional methods. From March 2016 to March 2018, 63 patients with patellar fractures who needed surgical treatment were treated with modified tension band wiring using two Kirschner wires (K-wires) and FiberWire. We inserted two 1.6-mm K-wires perpendicular to the fracture line after accurate reduction. With the knee flexed over 90°, we sutured around the patella using a FiberWire. Visual analog scale score and Levack's score were improved postoperatively. The mean bone union time was 5.6 months. None of the patients had breakage of wires, and nonunion with deformity occurred in one patient. We think that our method can be easier to handle and reduce irritation or breakage of the wires than conventional methods. In addition, early rehabilitation can be allowed. Therefore, we suggest that this method could be a useful method for the treatment of patellar fractures.
Bone Wires
;
Congenital Abnormalities
;
Humans
;
Knee
;
Methods
;
Patella
;
Rehabilitation
;
Visual Analog Scale
7.KAAACI Evidence-Based Clinical Practice Guidelines for Chronic Cough in Adults and Children in Korea.
Dae Jin SONG ; Woo Jung SONG ; Jae Woo KWON ; Gun Woo KIM ; Mi Ae KIM ; Mi Yeong KIM ; Min Hye KIM ; Sang Ha KIM ; Sang Heon KIM ; Sang Hyuck KIM ; Sun Tae KIM ; Sae Hoon KIM ; Ja Kyoung KIM ; Joo Hee KIM ; Hyun Jung KIM ; Hyo Bin KIM ; Kyung Hee PARK ; Jae Kyun YOON ; Byung Jae LEE ; Seung Eun LEE ; Young Mok LEE ; Yong Ju LEE ; Kyung Hwan LIM ; You Hoon JEON ; Eun Jung JO ; Young Koo JEE ; Hyun Jung JIN ; Sun Hee CHOI ; Gyu Young HUR ; Sang Heon CHO ; Sang Hoon KIM ; Dae Hyun LIM
Allergy, Asthma & Immunology Research 2018;10(6):591-613
Chronic cough is common in the community and causes significant morbidity. Several factors may underlie this problem, but comorbid conditions located at sensory nerve endings that regulate the cough reflex, including rhinitis, rhinosinusitis, asthma, eosinophilic bronchitis, and gastroesophageal reflux disease, are considered important. However, chronic cough is frequently non-specific and accompanied by not easily identifiable causes during the initial evaluation. Therefore, there are unmet needs for developing empirical treatment and practical diagnostic approaches that can be applied in primary clinics. Meanwhile, in referral clinics, a considerable proportion of adult patients with chronic cough are unexplained or refractory to conventional treatment. The present clinical practice guidelines aim to address major clinical questions regarding empirical treatment, practical diagnostic tools for non-specific chronic cough, and available therapeutic options for chronic wet cough in children and unexplained chronic cough in adults in Korea.
Adult*
;
Asthma
;
Bronchitis
;
Child*
;
Cough*
;
Eosinophils
;
Evidence-Based Medicine
;
Gastroesophageal Reflux
;
Humans
;
Korea*
;
Referral and Consultation
;
Reflex
;
Rhinitis
;
Sensory Receptor Cells
8.Ultrasound-Guided Axillary Brachial Plexus Block, Performed by Orthopedic Surgeons.
Cheol U KIM ; Chul Hyung LEE ; Ja Yeong YOON ; Seung Koo RHEE
The Journal of the Korean Orthopaedic Association 2018;53(6):513-521
PURPOSE: The purpose of this study was to assess the effectiveness and complications of an ultrasound-guided axillary brachial plexus block performed by orthopedic surgeons. MATERIALS AND METHODS: From March to May 2017, an ultrasound-guided axillary brachial plexus block was performed on a total of 103 cases of surgery. A VF13-5 transducer from Siemens Acuson X300 was used. The surgical site was included in the range of the anatomic sensory distribution of the blocked nerve, except for the case where an operation time of more than 2 hours was expected due to multiple injuries and the operation of the upper arm. The procedure was performed by 2 orthopedic surgeons in the same method using 50 ml of solution (20 ml of lidocaine HCl in 2%, 20 ml of ropivacaine in 0.75%, 10 ml of normal saline in 0.9%). The success rate of anesthesia induction during surgery, anesthetic induction time, anatomical range of operation, duration of postoperative analgesia and complications were investigated. RESULTS: The results from the 2 practices were similar. The anesthesia was successful in 100 out of 103 patients (97.1%). In these patients, the average needling time was 5.5 minutes (2.5–13.2 minutes), the average induction time to complete anesthesia was 18.4 minutes (5–40 minutes), and the average duration of postoperative analgesia was 402.8 minutes (141–540 minutes). The post-anesthesia immediate complications were dizziness in 1 case, nausea and vomiting in 4 cases, and peri-oral numbness in 2 cases, but surgery was performed without problems. All these 7 cases with complications recovered on the same day. A total of 3 cases failed with anesthesia, and they were treated by an injection with local anesthesia in the operation room in 2 cases and switched to general anesthesia in 1 case. CONCLUSION: An ultrasound-guided axillary brachial plexus block, which was performed by orthopedic surgeons allows anesthesia in a brief period and the high success rates of anesthesia for certain surgeries of the elbow and surgeries on forearm, wrist and hand. Therefore, it can reduce the waiting time to the operating room. This technique is a relatively safe procedure and dose selective anesthesia is possible.
Analgesia
;
Anesthesia
;
Anesthesia, General
;
Anesthesia, Local
;
Arm
;
Brachial Plexus Block*
;
Brachial Plexus*
;
Dizziness
;
Elbow
;
Forearm
;
Hand
;
Humans
;
Hypesthesia
;
Lidocaine
;
Methods
;
Multiple Trauma
;
Nausea
;
Operating Rooms
;
Orthopedics*
;
Surgeons*
;
Transducers
;
Vomiting
;
Wrist
9.The Effects of Autologous Structural Bone Graft without Internal Fixation on Posteromedial Tibial Bone Defect in Primary Total Knee Arthroplasty.
Je Gyun CHON ; In Soo SONG ; Jun Beom KIM ; Gun Il JANG ; Chi Hoon AHN ; Ja Yeong YOON
The Journal of the Korean Orthopaedic Association 2017;52(6):514-520
PURPOSE: To evaluate the radiological and clinical outcomes of the standard total knee arthroplasty without internal fixation or extended long stem in tibial bone defect with severe varus deformity. MATERIALS AND METHODS: Between July 2012 and April 2014, 32 patients (45 cases; 4 men and 41 women with a mean age of 74.2 years) who underwent total knee arthroplasty with autologous bone grafting were enrolled for analysis. The mean follow-up period was 34.4 months. The cancellous bone defect site was exposed, and a longitudinal sulcus was made. Subsequently, a premolded bone graft was inserted in the sulcus at 45°. The defect size was measured, and the radiological and clinical results were evaluated. RESULTS: The mean defect size according to the radiograph was found to be 15.31×30.36 mm in the frontal view and 15.46×45.98 mm in the sagittal view. The mean defect size of depth during the operation was found to be 8.38 mm. The preoperative mean varus angle was 14.1° (4.0°–26.9°), and the follow-up mean valgus angle was 5.4° (0.5°–10.5°). The implant position was α=95.7°, β=90.4°, γ=2.1°, δ=89.1° on the follow-up. No implant loosening was observed, and the mean bone union period was 4.3 months. The Hospital for Special Surgery score was improved from a preoperative mean of 50.1 to a postoperative mean of 90.4. CONCLUSION: Standard total knee arthroplasty using autologous structural bone grafting without internal fixation in a tibial bone defect demonstrated a rapid, stable bone healing and excellent radiological and clinical results. Thus the index procedure was considered to be simple, and effective for bone grafting.
Arthroplasty, Replacement, Knee*
;
Bone Transplantation
;
Congenital Abnormalities
;
Female
;
Follow-Up Studies
;
Humans
;
Male
;
Transplants*
10.Colonic Mucormycosis Mimicking Ischemic Colitis in Kidney Transplant Recipient.
Hyun Woo KIM ; Young Min YOON ; Mi Ja LEE ; Nam Gyu CHOI ; Sung Pyo MOON ; Na Ra YOON ; Sun Ae HAN ; Hyung Nam KIM ; Jun Hyung LEE ; Da Yeong KANG ; Hee Jung AHN ; Byung Chul SHIN ; Hyun Lee KIM ; Jong Hoon CHUNG
The Journal of the Korean Society for Transplantation 2016;30(2):98-102
Mucormycosis is an extremely rare but potentially life-threatening fungal infection. Mucormycosis of the gastrointestinal tract manifests with features similar to ischemic colitis. A 48-year-old man with end-stage renal disease due to diabetic nephropathy underwent deceased donor kidney transplantation. He complained of abdominal pain and distension on postoperative day 17. A computed tomography (CT) scan revealed symmetrical wall thickening of the ascending colon, which was consistent with ischemic colitis. However, a follow-up CT scan showed a localized wall-off colon perforation in the hepatic flexure and segmental mural gas in the ascending colon. Microscopic examination obtained from a surgical specimen demonstrated numerous fungal hyphae and spores in the mucosa and submucosa. A total colectomy was performed, but the patient died 36 days later due to multiple organ failure, despite antifungal agents. Clinicians should be informed about fungal infection, such as colonic mucormycosis mimicking ischemic colitis, in kidney transplant patients with diabetes mellitus, and treatment should be initiated at the earliest.
Abdominal Pain
;
Antifungal Agents
;
Colectomy
;
Colitis, Ischemic*
;
Colon*
;
Colon, Ascending
;
Diabetes Mellitus
;
Diabetic Nephropathies
;
Follow-Up Studies
;
Gastrointestinal Tract
;
Humans
;
Hyphae
;
Kidney Failure, Chronic
;
Kidney Transplantation
;
Kidney*
;
Middle Aged
;
Mucormycosis*
;
Mucous Membrane
;
Multiple Organ Failure
;
Spores
;
Tissue Donors
;
Tomography, X-Ray Computed
;
Transplant Recipients*

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