Extensor mechanism reconstruction with an allograft after total knee arthroplasty.

  • Emerson R
  • Head W
  • Malinin T
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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 degrees. All but three patients achieved full passive extension. Six of the nine knees had no extensor lag. The average post-operative 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.

Author-supplied keywords

  • Adult
  • Aged
  • Aged, 80 and over
  • Arthritis, Rheumatoid
  • Arthritis, Rheumatoid: surgery
  • Female
  • Follow-Up Studies
  • Humans
  • Knee Joint
  • Knee Joint: physiology
  • Knee Joint: radiography
  • Knee Prosthesis
  • Locomotion
  • Male
  • Middle Aged
  • Osteoarthritis
  • Osteoarthritis: surgery
  • Patellar Ligament
  • Patellar Ligament: surgery
  • Postoperative Complications
  • Postoperative Complications: etiology
  • Postoperative Complications: surgery
  • Range of Motion, Articular
  • Rupture, Spontaneous

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  • ISSN: 0009-921X
  • SCOPUS: 2-s2.0-0028334612
  • PUI: 24173790
  • PMID: 8194257
  • SGR: 0028334612


  • R H Emerson

  • W C Head

  • T I Malinin

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