• Journal of Korean Foot and Ankle Society
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• v.13 no.1
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• pp.14-18
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• 2009

Purpose: We evaluated the results of treatment and clinical symptoms of 11 cases of synovial chondromatosis in the ankle joint. Material and Method: From February 2001 to May 2008, 11 cases with synovial chondromatosis involving ankle joint underwent surgical treatment. There were 5 males and 6 females. The average age at surgery was 51 years. The average follow-up period was 42 months. Duration from onset of symptom to treatment was 117 months. Chief complaints of patients, 9 cases were pain and 1 case was mass like lesion, 1 case was found on x-ray. Preoperatively, all cases were evaluated on simple x-ray, 4 cases on CT, 4 cases on MRI and 1 case on ultrasonogram. 10 cases underwent synovectomy and loose body removal. 5 cases of 10 cases underwent open synovectomy and loose body removal and arthrosocpic surgery. 4 cases of 10 cases underwent only open synovectomy and loose body removal and 1 case of 10 cases underwent only arthroscopic surgery. 1 case underwent tibiotalar arthrodesis. Results: The location of loose bodies was 7 cases on posterior and 4 cases on anterior and 4 case on lateral and 3 cases on multiple site. Postoperatively, all patients showed marked clinical improvement and had subjective satisfaction except reoperation 2 cases and arthrodesis 1 case. AOFAS score of all patients was average 82.2. Conclusion: Clinical results of the synovial chondromatosis of ankle joint were satisfactory. More accurate preoperative evaluation is required to achieve prevention of postoperative recurrence and better outcome.

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.3 no.1
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• pp.8-14
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• 2010

Purpose: We wished to evaluate the clinical usefulness of ultrasound, when loose body is palpated and is shown radiographically in knee. Material and Methods: Twenty-five knees of twenty-two patients with loose body in knee radiographically from March, 2007 to July, 2009 were involved in this study, there were 8 males and 14 females, there were 11 right knees, 8 left knees and 3 both knees, the average age was 56.3 years (range, 32~76 years). The location of loose bodies were 13 cases at suprapatella pouch, 1 case at infrapatella anterior compartment and 11 cases at posterior compartment. In loose bodies of suprapatella pouch, we examined the mobility of loose bodies longitudinally with ultrasound placed at superior patella pole while flexing and extending the knee. In loose bodies of infrapatella anterior and posterior compartment, we examined the mobility of loose bodies longitudinally and transversely with ultrasound while flexing and extending the knee. Results: All cases of suprapatella pouch and infrapatella anterior compartment were diagnosed to movable loose bodies and were removed surgically, all cases of posterior compartment were diagnosed to immovable loose bodies and were not removed. Conclusion: When we determined the surgical removal according to mobility of loose body in knee, ultrasound may be helpful clinically.

• Clinics in Orthopedic Surgery
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• v.10 no.4
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• pp.393-397
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• 2018

Background: The purpose of our study was to evaluate the usefulness of hip arthroscopy including extensive capsulectomy for synovial chondromatosis of the hip. Methods: From 2008 to 2016, 13 patients with synovial chondromatosis of the hip were treated with arthroscopic removal of loose bodies and synovectomy using three arthroscopic portals. An extensive capsulectomy was performed to allow the remaining loose bodies to be out of the extracapsular space, and the excised capsule was not repaired. All patients were assessed by clinical scores and the radiographs were reviewed to determine whether the remaining loose bodies disappeared at the last follow-up. Results: Eight men and two women were followed up for a minimum of 1 year (mean, 3.8 years; range, 1 to 6.8 years) after hip arthroscopy. Clinical outcomes such as modified Harris hip score, University of California Los Angeles score, and Western Ontario and McMaster Universities Osteoarthritis Index score improved at the last follow-up. Although seven hips had remaining loose bodies after arthroscopic surgery, the remaining loose bodies disappeared in five hips (71.4%) at the last follow-up. Conclusions: Arthroscopic surgery was useful to treat synovial chondromatosis of the hip. In spite of limited removal of loose bodies, arthroscopic procedures including extensive capsulectomy could be effective for the treatment of synovial chondromatosis of the hip.

• Journal of the Korean Arthroscopy Society
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• v.6 no.1
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• pp.43-48
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• 2002

Purpose : We evaluated the results of the arthroscopic treatment of nine cases of synovial chondromatosis in the knee joints. Materials and Methods : From June 1989 to September 1999, eight patients nine cases with synovial chondromatosis involving knee joints underwent arthroscopic total synovectomy and removal of loose bodies. There were 6 females and 2 males. The average age at surgery was 44.1 years(range, 20-57 years). The average follow-up period was 5.9 years (range, 2.5-7.3 years). All cases had pain and swelling and two cases had locking preoperatively. Flexion contracture was found in three cases. Results : Pathologic finding revealed Milgram I in one case, Milgram II in six cases and Milgram III in two cases. There were six cases of generalized synovial hypertrophy and one case of localized type. All patients had symptomatic relief by arthroscopic total synovectomy and loose body removal. Second arthoroscopic surgery was performed in one patient due to recurred lesions 11 months after the primary surgery. Conclusion : Clinical results of the synovial chondromatosis with arthroscopic total synovectomy and loose body removal were satisfactory. Arthroscopic total synovectomy was also effective for the recurred case.

• Journal of the Korean Arthroscopy Society
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• v.11 no.1
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• pp.59-62
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• 2007

Freiberg disease is a relatively rare osteochondrosis of metatarsal head, which usually involves the 2nd metatarsal of adolescent females. Various open surgical treatments have been recommended; arthrotomy and removal of loose body, dorsiflexion osteotomy and resection of the metatarsal head. Arthroscopic treatment for Freiberg disease has a merit of shortening the recovery period and reducing the postoperative stiffness. We report a case of early stage Freiberg disease treated with metatarsophalangeal arthroscopic excision of loose body and debridement of the 2nd metatarsophalangeal joint.

• Journal of Korean Foot and Ankle Society
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• v.8 no.2
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• pp.142-148
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• 2004

Purpose: We compared the results of three surgical procedures of the old neglected Freiberg's disease that was managed with metatarsal head reshaping, metatarsal head resection, and dorsal closing wedge osteotomy. Materials and Methods: From march 1996 to July 2002, five cases in six patients whose metatarsal head collapse already progressed underwent operative treatment. We compared the operative results in the view point of the radiographic follow-up and lesser toe metatrasophalangeal joint scale of AOFAS. Results: There were no further joint destruction and loose body formation. Also, lesser toe metatrasophalangeal joint scale of AOFAS improved from average score, 38.5 (range $22{\sim}49$) of preoperative one to average score, 86.6 (range, $72{\sim}100$). Especially, the 2 cases that underwent dorsal closing wedge osteotomy showed most favorable result and the 2 cases with metatarsal resection showed next favorable result. The 2 cases with intra-articular loose body removal and metatarsal reshaping showed the least effective result among three operative methods. Conclusion: Our Operative experiences of old neglected Freiberg's disease were all satisfactory irrespective of operative options and dorsal closing wedge osteotomy was thought to be most effective method.

• Journal of Korean Foot and Ankle Society
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• v.13 no.2
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• pp.223-226
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• 2009

Freiberg disease is a osteochondrosis of the lesser metatarsal heads. Various surgical treatment have been recommanded including joint debridement and metatarsal head reshaping, metatarsal dorsal wedge osteotomy, metatarsal head excision and joint arthroplasty. Autogenous osteochondral graft for the treatment of Freiberg disease is an effective restorative procedure that provides early range of motion exercise, weight bearing, and reduces other morbidity. We report a case of late stage Freiberg disease treated with arthrotomy, removal of loose body and autogenous osteochondral graft.

• Clinics in Shoulder and Elbow
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• v.9 no.2
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• pp.202-206
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• 2006

Synovial chondromatosis is an uncommon condition and involvement of the glenohumeral joint is rare comparing its involvement of knee and hip. We report a case of synovial chondromatosis with its radiography, MRI and microscopic findings and treatment by arthroscopic synovectomy & loose body removal which have been developed in right shoulder of a 46 year-old-female and presented as impingement syndrome.

• Clinics in Shoulder and Elbow
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• v.6 no.2
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• pp.178-183
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• 2003

Synovial chondromatosis is a, relativly rare disease, moreover the shoulder joint is very rarely affected. The authors report two cases of synovial chondromatosis of the glenohuneral Joint and biceps tendon sheath that were managed by arthrclscopic loose body removal and partial synovectomy. Excellent subjective and objective results were obtained.

• The Korean journal of sports medicine
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• v.36 no.4
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• pp.221-226
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• 2018

Synovial chondromatosis is an uncommon disorder characterized by cartilaginous proliferation within the synovial membrane of the articular joint. Smaller joints are rarely affected and it may be progressed to osteochondromatosis after ossification or calcification of metaplastic cartilage. It is commonly presented in the third to fourth decade of life, but rarely presented in adolescence. We report a unique case of synovial osteochondromatosis of the subtalar joint in 14-year-old baseball player. Arthroscopic removal of loose body and complete excision of the osteochondral mass with concomitant synovectomy resulted in satisfactory outcome without recurrence at final follow-up.