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Related Concept Videos

Bones of the Lower Limb: Femur and Patella01:16

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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...
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Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
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Avoiding Hip Instability and Limb Length Discrepancy After Total Hip Arthroplasty.

Peter K Sculco1, Umberto Cottino1, Matthew P Abdel1

  • 1Department of Orthopedic Surgery, Mayo Clinic, 200 First Street, Southwest, Rochester, MN 55905, USA.

The Orthopedic Clinics of North America
|January 17, 2016
PubMed
Summary

Total hip arthroplasty (THA) aims to restore hip function and stability. This review covers risk factors, surgical techniques, and management strategies to prevent complications like instability and limb length discrepancy after THA.

Keywords:
Component positionInstabilityLimb length discrepancyPreoperative templatingTotal hip arthroplasty

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering

Background:

  • Hip instability and limb length discrepancy are significant complications following total hip arthroplasty (THA).
  • Instability is a frequent reason for revision THA, highlighting the need for precise surgical techniques.
  • Achieving optimal outcomes in THA involves maximizing range of motion, restoring hip offset, and ensuring limb length equalization.

Purpose of the Study:

  • To review patient risk factors associated with dislocation and limb length discrepancy after THA.
  • To discuss essential preoperative planning and intraoperative techniques for accurate component placement.
  • To outline methods for assessing and managing postoperative hip instability.

Main Methods:

  • Review of patient risk factors for hip instability and limb length discrepancy.
  • Analysis of preoperative templating strategies for THA.
  • Evaluation of anatomical landmarks critical for component positioning.
  • Assessment of leg positions for testing soft tissue stability.
  • Review of management protocols for postoperative instability.

Main Results:

  • Identified key patient-specific factors influencing the risk of dislocation and limb length discrepancy.
  • Emphasized the importance of accurate preoperative planning and anatomical landmark identification for component placement.
  • Highlighted specific leg positions crucial for evaluating soft tissue stability during surgery.
  • Provided a framework for managing instability following total hip arthroplasty.

Conclusions:

  • Successful THA requires meticulous attention to preoperative planning, component positioning, and stability assessment.
  • Addressing risk factors and employing precise surgical techniques can minimize complications like instability and limb length discrepancy.
  • Effective management strategies are essential for achieving pain-free and dynamically stable outcomes after THA.