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Related Concept Videos

Knee Joint01:23

Knee Joint

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The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
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The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
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No difference in clinical outcomes after total knee arthroplasty between patellar eversion and non-eversion.

Zhiwei Jia1, Chun Chen1,2, Yaohong Wu1,2

  • 1Department of Orthopaedics, Navy General Hospital, No. 6, Fucheng Road, Beijing, 100048, China.

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA
|October 3, 2014
PubMed
Summary

Patellar eversion in total knee arthroplasty (TKA) does not appear to negatively impact clinical outcomes. This systematic review found no significant differences in function, pain, or complications between patellar eversion and non-eversion techniques.

Keywords:
Meta-analysisPatellar eversionSystematic reviewTotal knee arthroplasty

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Area of Science:

  • Orthopedic surgery
  • Biomechanics
  • Clinical outcomes research

Background:

  • Minimally invasive total knee arthroplasty (TKA) encompasses various surgical techniques.
  • The impact of patellar eversion on TKA clinical outcomes is debated.

Purpose of the Study:

  • To systematically review randomized controlled trials (RCTs) comparing patellar eversion with patellar non-eversion (PN) in TKA.
  • To clarify the effect of patellar eversion on postoperative outcomes.

Main Methods:

  • Systematic review and meta-analysis of five RCTs involving 379 knees.
  • Data extraction and quality assessment by two independent authors.
  • Comparison of outcomes between patellar eversion and PN groups.

Main Results:

  • No significant differences were observed in functional scores, pain, quality of life, quadriceps strength, patellar height, alignment, or complication rates.
  • Power analysis indicated varying study power, with alignment and patellar height having high power in some studies.

Conclusions:

  • Current evidence suggests patellar eversion in TKA does not definitively lead to inferior postoperative outcomes.
  • Patellar eversion and PN techniques yield similar clinical results in TKA.