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Related Experiment Videos

Popliteus tendon dysfunction following total knee arthroplasty

C L Barnes1, R D Scott

  • 1Department of Orthopedic Surgery, New England Baptist Hospital, Brigham and Women's Hospital, Boston, Massachusetts, USA.

The Journal of Arthroplasty
|August 1, 1995
PubMed
Summary
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The popliteus tendon can cause knee problems after total knee arthroplasty. Releasing the tendon from its attachment site can resolve this internal derangement issue.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Musculoskeletal Research

Background:

  • Total knee arthroplasty (TKA) is a common procedure for knee joint degeneration.
  • Internal derangement can occur post-TKA, leading to complications.
  • The popliteus tendon's role in TKA complications requires investigation.

Observation:

  • The popliteus tendon may subluxate anteriorly or posteriorly after TKA.
  • Subluxation can occur over retained osteophytes or implant edges.
  • This tendon displacement can cause internal derangement symptoms.

Findings:

  • Popliteus tendon subluxation is identified as a cause of internal derangement post-TKA.
  • Anterior and posterior subluxation over femoral components or osteophytes is the mechanism.

Related Experiment Videos

  • Surgical release of the popliteus tendon from its femoral insertion effectively addresses the issue.

    • Implications:

    • Understanding popliteus tendon mechanics is crucial for TKA success.
    • Identifying tendon subluxation aids in diagnosing post-TKA internal derangement.
    • Surgical release offers a targeted solution for this specific complication, improving patient outcomes.