Disturbance of Extensor Mechanism after Primary and Revision Knee Arthroplasty

Abstract


Rate of extensor mechanism complications after primary and revision knee arthroplasty reaches 12 %. Description and systematization of such complications by literature data is given. Our experience in treatment of 12 patients with such complications after primary knee and in 5 patients after revision knee arthroplasty that made up 1.0 and 13.9% of all interventions, respectively, is presented. Registered complications include para-patellar scars and ossification impingement (4), patellar lateralization (5), patellar dislocation (1), patellar tendon rupture (7). Treatment results in patients after primary arthroplasty are better than after revision intervention - 83.3 and 40% of positive results, respectively. It is shown that high rate (42.9%) of patellar tendon rupture are associated with deep periprosthetic infection. Besides, autoplasty with m. gracilis and m. semitendinosus shows its inefficiency in treatment of such complications.

About the authors

G. M Kavalerskiy

I.M. Sechenov First Moscow State Medical University


V. Yu Murylyov

I.M. Sechenov First Moscow State Medical University


M. Yu Kholodaev

City Clinical Hospital named after S.P. Botkin, Moscow, Russia


Ya. A Rukin

I.M. Sechenov First Moscow State Medical University

Email: yarbarmaley@gmail.com

P. M Elizarov

I.M. Sechenov First Moscow State Medical University


G. G Rubin

City Clinical Hospital named after S.P. Botkin, Moscow, Russia


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