Radiotherapy inducing total knee prosthetic component loosening for recurrent pigmented villonodular synovitis following joint replacement | Zendy

ChianHer Lee | Zendy; Ko-Ta Chen | Zendy; JanShow Chu | Zendy

Open Access

Radiotherapy inducing total knee prosthetic component loosening for recurrent pigmented villonodular synovitis following joint replacement

Author(s) -

ChianHer Lee,

Ko-Ta Chen,

JanShow Chu

Publication year - 2017

Publication title -

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

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