• Journal of Korean Foot and Ankle Society
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• v.22 no.4
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• pp.173-176
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• 2018

Pigmented villonodular synovitis (PVNS) is a proliferative disease that affects the synovial joint, tendon and bursa. PVNS can form a nodular structure in any joint, but it most commonly affects the knee joint and is rare in the foot and ankle joint. PVNS is divided into two types. Localized-type PVNS exhibits focal involvement with a nodular mass, while diffuse-type PVNS involves the entire synovium. Synovitis of the affected joint can also destroy cartilage and bone. Diffuse type accounts for 75% of PVNS and has a reported recurrence rate of 12.2% to 46%; aggressive synovectomy is recommended as the most effective treatment. In localized-type PVNS, only arthroscopic partial synovectomy is effective with a lower recurrence rate. We report a patient with severe ankle joint arthritis induced by diffusetype PVNS. The patient was treated by lateral malleolar ostectomy and ankle arthrodesis with a plate and screws via a lateral approach.

• Clinics in Shoulder and Elbow
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• v.13 no.2
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• pp.275-279
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• 2010

Purpose: Here we report a case of pigmented villonodular synovitis of the shoulder associated with a rotator cuff tear. Materials and Methods: A 52 year-old female who had suffered from pigmented villonodular synovitis of the shoulder associated with a rotator cuff tear was treated with arthroscopic synovectomy and subacromial decompression. Results: Pain was reduced and the patient achieved a good functional outcome after surgery. Conclusion: The current authors report a case of pigmented villonodular synovitis of the shoulder associated with rotator cuff tear and a review of literature.

• Journal of the Korean Arthroscopy Society
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• v.5 no.2
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• pp.131-134
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• 2001

The knee joint is most commonly affected. Until now, there were several reports of this condition, but this report seems to be the first one reporting localized Pigmented Villonodular Synovitis (PVNS) after anterior cruciate ligament(ACL) reconstruction. The authors experienced localized PVNS after ACL reconstruction with bone-patellar tendon-bone at follow-up 4 years and confirmed the diagnosis by pathologic examination.

• Journal of Korean Foot and Ankle Society
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• v.17 no.1
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• pp.64-67
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• 2013

Pigmented villonodular synovitis (PVNS) is a slowly, progressive, proliferative disorder of synovial tissue characterized by villous or nodular changes of synovial-lined joints, bursae, and tendon sheaths and most frequently affects the large joints, with the knee and hip. A few studies have been reported that occurred PVNS in small joint, but mainly in hands. It is a very rare condition that occurs in the small joints of the forefoot. We have experienced the case, which developed in small joint of the forefoot, and performed total synovectomy. After the operation, there was no recurrence. We report a case of PVNS in forefoot with a review of the literature.

• Journal of Korean Foot and Ankle Society
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• v.23 no.3
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• pp.139-142
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• 2019

Pigmented villonodular synovitis (PVNS) is a rare proliferative disease involving the synovial membranes. Complete excision with a total synovectomy is important for diffuse type PVNS because of its high recurrence rate. In the ankle, complete excision of diffuse type PVNS is difficult due to the anatomical structure of the ankle joint. This paper reports the author's experience of surgical treatment with combined open and arthroscopic synovectomy. In this manner, it is expected that the complications of the open procedure and the recurrence rate of arthroscopic procedure can be reduced.

• Clinics in Shoulder and Elbow
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• v.9 no.1
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• pp.111-118
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• 2006

Most pigmented villonodular synovitis (PVNS) is occurred in knee joint and finger of hand. PVNS is rarely occurred in shoulder joint. In English and French literatures, less than 30 cases were reported. We report 3 PVNS cases with rotator cuff tears, which was treated by arthroscoic extensive synovectomy, debridement and rotator cuff repair. The PVNS with rotator cuff tear in shoulder joint was rarely reported in the Korean literature.

• Journal of Korean Foot and Ankle Society
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• v.20 no.4
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• pp.192-195
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• 2016

Diffuse pigmented villonodular synovitis (PVNS) involving ankle joint needs complete mass excision and total synovectomy to reduce recurrence rate, while surrounding ligaments can be easily damaged. So the concurrent ligament reconstruction should be considered for post-excisional instability in subtalar joint as well as lateral ankle joint. We describe our experience in the management of a diffuse type PVNS, invades lateral talocrural joint extended to subtalar joint and introduce a new technique of all-in-one reconstruction for anterior talofibular,calcaneofibular and cervical ligament. Our new reconstruction technique applying modified Chrisman and Snook technique is useful in stabilization for deficiencies of the ligament complexafter PVNS excisionat lateral ankle and subtalar joint.

• Journal of the Korean Arthroscopy Society
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• v.5 no.2
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• pp.111-115
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• 2001

Purpose : To confirm the efficacy of arthroscopic synovectomy for the pigmented villonodular synovitis in the knee. Materials and Methods : We analysed 8 patient(9 cases) that were diagnosed and performed arthroscopic synovectomy as pigmented villonodular synovitis from July 1992 to May 2000. The diagnosis was confirmed by pathologist. The average follow-up period was 29 months(range, $15\~48$ months). The average age at initial visit was 40.4 years(rage, $15\~67$ years). Male were 6 cases and female 2 cases. The average duration from onset of the symptom to the operation was 23 months($2\~86$ months). Previous history of the trauma was noted in 2 case. There was 1 case involved both knee joints. Results : According to the athroscopic findings, there were 4 localized forms and 5 diffuse forms. At preoperational examinations, the average of flexion contracture was $4.4^{\circ}(0\~5^{\circ})$ and that of the further flexion was $117.8^{\circ}(90\~135^{\circ})$. At last follow-up examinations, the knee range of motion was normalized, the average of flexion range was $133.9^{\circ}(120\~140^{\circ})$. All patients had improvement in pain, swelling and range of motion and there was no evidence of recurrence. Conclusion : In the pigmented villonodular synovitis, arthroscopic synovectomy can be considered one of the good modality to expect good results.

• Journal of Korean Foot and Ankle Society
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• v.9 no.2
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• pp.220-223
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• 2005

Pigmented villonodular synovitis (PVNS) in ankle is relatively uncommon. This disorder results in increased proliferation of synovium causing villous or nodular changes containing histiocytes, fibroblasts, multinucleated giant cell, and hemosiderin. PVNS is classified into two different type : localized and diffuse. Diffuse type of PVNS in ankle is more common than localized type. Also, recurrence of diffuse type is more frequent. We report a case of diffuse type of PVNS which was recurred soon after the excision.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.40 no.3
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• pp.140-146
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• 2014

Pigmented villonodular synovitis (PVNS) is a benign but locally aggressive and destructive disease originating in the synovial membranes. It is a proliferative disorder of unknown etiology. Involvement of the temporomandibular joint (TMJ) is very rare. Computed tomography clearly reveals areas of lytic bone erosion and sclerosis, and also clearly defines the extent of the tumor which is the focal areas of hyperdensity within the soft-tissue mass. Magnetic resonance images invariably show profound hypointensity on both T1- and T2-weighted sequences due to hemosiderin pigmentation. Additionally, high signal intensity on T2-weighted images may indicate cystic loculation of the joint fluid. This case study describes a rare case of PVNS of the TMJ with bone destruction of the mandibular condyle. Complete surgical excision of the lesion was performed through a preauricular approach with temporal extension. During the 10-year follow-up, two more operations were performed due to local recurrence and the fracture of the reconstruction plate. Total joint reconstruction with Biomet was finally performed, and the absence of disease was confirmed with a biopsy report showing fibrosis with hyalinization and mild inflammation of the excised soft tissue from the old lesion.