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Related Experiment Video

Updated: May 15, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
09:51

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

Published on: September 7, 2022

Does delay in total knee arthroplasty impact postoperative performance? A case-based illustration.

Tamara S Struessel1, Jaclyn E Balter1, Jennifer E Stevens-Lapsley1

  • 1Physical Therapy Program, University of Colorado, Aurora, Colorado.

The Journal of Knee Surgery
|January 5, 2013
PubMed
Summary

Delaying total knee arthroplasty (TKA) surgery significantly worsens patient strength and function. Recovery post-TKA is slower and less complete when surgery is postponed, impacting long-term outcomes.

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Area of Science:

  • Orthopedics
  • Rehabilitation Medicine
  • Biomedical Engineering

Background:

  • Optimal timing for total knee arthroplasty (TKA) remains unclear.
  • Osteoarthritis (OA) management often involves TKA, but surgical scheduling can be delayed for various reasons.

Observation:

  • A case study examined strength and function in a patient whose TKA for OA was postponed for six months.
  • Strength and functional performance were assessed at multiple points before and after surgery.
  • The patient experienced significant declines in quadriceps strength (47%) and increased pain during the delay.

Findings:

  • Quadriceps strength declined precipitously in the final three months before surgery.
  • Post-TKA, quadriceps strength recovered to immediate preoperative levels but remained 47% below baseline six months prior.

Related Experiment Videos

Last Updated: May 15, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
09:51

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

Published on: September 7, 2022

  • Functional performance improved to preoperative levels within six weeks, but muscle strength recovery lagged, with long-term deficits observed.

    • Implications:

    • This case highlights the potential for substantial strength and functional deficits due to delayed TKA.
    • Delayed surgery may lead to poorer recovery outcomes compared to timely intervention.
    • Further research is needed to establish optimal surgical timing for TKA, considering patient function, strength, and pain.