Extensor mechanism reconstruction with an allograft after total knee arthroplasty

R. H. Emerson, W. C. Head, T. I. Malinin

Research output: Contribution to journalArticlepeer-review

118 Scopus citations


The authors report on a series of 15 knees in which an extensor mechanism allograft was used to treat a rupture of the patellar tendon associated with a total knee arthroplasty. Nine of the knees have greater than two-year follow-up evaluation (average, 4.1 years; range, 2.3-7 years). Postoperatively, the average flexion was 106°. All but three patients achieved full passive extension. Six of the nine knees had no extensor lag. The average postoperative clinical score for the follow-up group was 78 points. Graft complications include one early graft rupture, one early quadriceps junction failure, and one patellar component loosening. One graft fractured after revision of a metal-backed patella.

Original languageEnglish (US)
Pages (from-to)79-85
Number of pages7
JournalClinical orthopaedics and related research
Issue number303
StatePublished - Jan 1 1994

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine


Dive into the research topics of 'Extensor mechanism reconstruction with an allograft after total knee arthroplasty'. Together they form a unique fingerprint.

Cite this