Osteolysis and wear debris after total knee arthroplasty presenting with extra-articular metallosis in the calf.
Component wear after total knee arthroplasty (TKA) with extruded metallosis in the extra-articular tissue of the calf secondary to a periprosthetic fracture is a rare complication. A 77-year-old man with a failed Insall-Burstein II TKA prosthesis presented with calf cellulitis after a fall. Radiologic evaluation revealed severe osteolysis and loosening of prosthetic components and an intramuscular abscess communicating with the medullary canal of the tibia through an undisplaced periprosthetic fracture. The patient developed rhabdomyolysis with acute renal failure. Drainage of the calf abscess showed staining of the muscles with wear debris and metallosis. The patient subsequently had debridement and excision of the infected TKA implant. Prompt diagnosis of this condition should be suspected in cases of failed arthroplasty with osteolysis and periprosthetic fracture.
Department of Orthopaedic Surgery, Tan Tock Seng Hospital, Singapore.
Gek Meng
GM
Tan
Goh
G
Lynne
Singh
S
Sarbjit
D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D005547:Foreign Bodies; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000601:surgery; D007720:Knee Prosthesis / Q000009:adverse effects*; D008297:Male; D008670:Metals / Q000009:adverse effects*; D010014:Osteolysis / Q000175:diagnosis* / Q000209:etiology; D052638:Particulate Matter; D011475:Prosthesis Failure; D011859:Radiography; D012206:Rhabdomyolysis / Q000175:diagnosis* / Q000209:etiology
D008670:Metals; D052638:Particulate Matter