Clinical Orthopaedics and Related Research

, Volume 466, Issue 11, pp 2669–2676

Patient-reported Outcome Correlates With Knee Function After a Single-design Mobile-bearing TKA

  • Jean-Noel Argenson
  • Sebastien Parratte
  • Abdullah Ashour
  • Richard D. Komistek
  • Giles R. Scuderi
Symposium: Papers Presented at the Annual Meetings of the Knee Society
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Abstract

With substantial interest devoted to improving knee flexion after TKA, it is important to document the relationship between high range of motion and patient-rated outcomes shown. We therefore asked whether single-design high-flexion mobile-bearing posterior-stabilized TKA resulted in: (1) improved knee function; (2) satisfying subjective results; (3) participation recreational and sporting activities; and (4) function correlated to the final range of motion. We prospectively followed 445 consecutive patients having 516 TKAs from September 2000 to January 2005. The same high-flexion posterior-stabilized mobile-bearing implant was used in all patients. Mean patient age was 71 ± 8 years and mean body mass index was 28 ± 4 kg/m2. The minimum clinical followup was 2 years (mean, 3 years; range, 2–4 years). The postoperative range of knee flexion was 128° ± 4° and the mean Knee Society function and knee scores were 91 ± 6 and 96 ± 3, respectively. Eighty-two percent of patients were involved in sporting activities and 86% returned to their previous level of activity. These data confirm that high postoperative range of knee flexion improve patient-rated outcomes.

Level of Evidence: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.

Copyright information

© The Association of Bone and Joint Surgeons 2008

Authors and Affiliations

  • Jean-Noel Argenson
    • 1
  • Sebastien Parratte
    • 1
  • Abdullah Ashour
    • 1
  • Richard D. Komistek
    • 2
  • Giles R. Scuderi
    • 3
  1. 1.Department of Orthopedic Surgery, Service de Chirurgie OrthopédiqueAix-Marseille University, Hôpital Sainte-MargueriteMarseilleFrance
  2. 2.Center for Musculoskeletal ResearchKnoxvilleUSA
  3. 3.Insall Scott Kelly InstituteNew YorkUSA

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