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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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Lower limb length and offset in total hip arthroplasty.

X Flecher1, M Ollivier1, J N Argenson1

  • 1Service d'Orthopédie-Traumatologie, CHU Sud, 270, boulevard Sainte-Marguerite, 13009 Marseille, France.

Orthopaedics & Traumatology, Surgery & Research : OTSR
|January 23, 2016
PubMed
Summary

Achieving limb length equality and restoring hip offset during total hip arthroplasty (THA) is crucial for patient outcomes. Careful surgical planning and advanced tools minimize errors, improving function and prosthesis survival.

Keywords:
Femoral offsetLeg length discrepancyPreoperative templatingTotal hip arthroplasty

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Reconstructive Surgery

Background:

  • Restoring normal hip biomechanics is essential for functional recovery after total hip arthroplasty (THA).
  • Limb length equality and hip/femoral offset are critical considerations in THA, impacting patient satisfaction and prosthesis survival.
  • Accurate management of limb length and offset is vital to prevent adverse effects on function, quality of life, and prosthetic longevity.

Purpose of the Study:

  • To define anatomic and functional limb length discrepancies and femoral/hip offset, considering femoral anteversion.
  • To review the influence of operated limb length and offset on patient satisfaction, hip function, and prosthesis survival after THA.
  • To highlight common errors in length and offset management and their consequences.

Main Methods:

  • Review of data on the impact of limb length and offset on THA outcomes.
  • Discussion of traditional surgical planning methods (preoperative templating, intraoperative landmarks).
  • Exploration of advanced technologies like computer-assisted surgery and the EOS imaging system for improved accuracy.

Main Results:

  • Errors in limb length and hip offset can negatively affect patient outcomes, including function, quality of life, and prosthesis survival.
  • Modern prosthetic options (varus-aligned, lateralized implants, modular/custom necks) aid in restoring hip geometry, especially in cases of coxa vara/valga.
  • Attention to femoral anteversion is also critical for successful THA outcomes.

Conclusions:

  • Meticulous attention to limb length and hip offset is paramount in total hip arthroplasty to optimize patient function and implant survival.
  • Advanced imaging and planning tools enhance surgical accuracy in managing hip geometry.
  • Revision arthroplasty may be indicated for symptomatic errors in limb length or offset.