Open AccessRadiotherapy inducing total knee prosthetic component loosening for recurrent pigmented villonodular synovitis following joint replacement
Author(s) -
Ko Ta Chen,
Jan Show Chu,
Chian Her Lee
Publication year - 2017
Publication title -
yīxué yánjiū zázhì/journal of medical sciences
Language(s) - English
Resource type - Journals
eISSN - 2542-4939
pISSN - 1011-4564
DOI - 10.4103/jmedsci.jmedsci_45_16
Subject(s) - pigmented villonodular synovitis , medicine , synovectomy , condyle , knee joint , radiation therapy , surgery , total knee arthroplasty , femur , synovitis , arthritis , rheumatoid arthritis
Pigmented villonodular synovitis (PVNS) following total knee arthroplasty (TKA) is a rare condition. We reported a case of PVNS following TKA; initially, arthroscopic synovectomy was performed; however, recurrence of PVNS happened. We performed second arthroscopic synovectomy and moderate dose radiotherapy (total dose 44 cGy/22 fractions to posterior fossa, 36 cGy/18 fractions to knee) for the patient. Unfortunately, distal femur osteonecrosis with femoral and tibial component loosening happened 2 months after completing the radiotherapy procedure. Revision TKA with Legacy Constrained Condylar Knee was done. Radiotherapy is not recommended for recurrent PVNS after TKA