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Related Concept Videos

Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the neck...
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Related Experiment Video

Updated: Jun 30, 2026

A Mouse Model of Ankle-Subtalar Complex Joint Instability
09:14

A Mouse Model of Ankle-Subtalar Complex Joint Instability

Published on: October 28, 2022

Knee: axial instability.

H D Clarke1, W N Scott

  • 1Insall Scott Kelly Institute for Orthopaedics and Sports Medicine, Beth Israel Medical Center, New York, New York 10128, USA.

The Orthopedic Clinics of North America
|November 2, 2001
PubMed
Summary
This summary is machine-generated.

Total knee replacement offers excellent long-term results. However, instability can occur due to surgical malalignment and poor soft tissue balancing, impacting knee replacement outcomes.

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering

Background:

  • Total knee replacement (TKR) is a highly successful orthopedic procedure.
  • Identified failure patterns include varus-valgus and anterior-posterior instability.
  • Instability often stems from intraoperative malalignment and inadequate soft tissue balancing.

Purpose of the Study:

  • To review techniques for achieving correct soft tissue balancing in TKR.
  • To discuss methods for creating symmetric flexion and extension gaps.
  • To outline the management of postoperative instability following TKR.

Main Methods:

  • Review of surgical techniques for soft tissue balancing.
  • Analysis of methods for gap balancing in flexion and extension.
  • Discussion of strategies for managing instability post-TKR.

Main Results:

  • Proper soft tissue balancing and symmetric joint spaces are crucial for stability.
  • Intraoperative decisions significantly influence the risk of postoperative instability.
  • Effective management strategies can address TKR instability.

Conclusions:

  • Achieving medial-lateral soft tissue balance is key to successful TKR.
  • Addressing intraoperative factors can prevent postoperative instability.
  • Comprehensive management plans are essential for TKR success.