Related Experiment Video
Updated: Jun 28, 2026
09:31
Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
Published on: February 27, 2018
[Should monobloc cemented stems be systematically revised during revision total hip arthroplasty? A prospective
G Grosjean1, J-P Courpied, M Moindreau
1Centre de recherches orthopédiques cliniques, centre hospitalo-universitaire Cochin-Port-Royal (AP-HP), université Paris-V, 27, rue du Faubourg-St-Jacques, 75014 Paris, France.
Revue De Chirurgie Orthopedique Et Reparatrice De L'Appareil Moteur
|November 6, 2008
Summary
Revision total hip arthroplasty (THA) often involves retaining the femoral component. However, this study found significant femoral head damage in most cases, recommending systematic femoral component revision in THA regardless of the reason.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
- Implant Wear Analysis
Context:
- Revision total hip arthroplasty (THA) is frequently necessitated by polyethylene wear and periacetabular osteolysis, often leading to acetabular component loosening.
- In such cases, the monobloc cemented femoral stem may remain stable, raising questions about whether it can be retained during revision surgery.
Purpose:
- To evaluate the surface and sphericity damage of femoral heads in a series of revision THAs where the cemented monobloc femoral component was systematically revised.
- To determine the extent of in vivo wear and damage to the femoral head component of Charnley-type THAs.
Summary:
- Twenty-two Charnley-type cemented total hip arthroplasties were revised. Femoral heads were analyzed for surface roughness (Ra, Rt) and sphericity.
- Results showed significant deviations from international standards in roughness and sphericity for a majority of the explanted femoral heads (over 80% for roughness, 59% for sphericity).
- No significant association was found between patient age, BMI, time to revision, or reason for revision and the degree of femoral head damage.
Impact:
- The findings suggest that retaining the femoral component during revision THA is often inadvisable due to prevalent in vivo surface damage.
- Systematic revision of the monobloc femoral component is recommended in THA revisions to avoid potential complications related to worn or damaged femoral heads.
- This study provides critical data for surgical decision-making in revision hip arthroplasty, emphasizing component integrity over potential cost savings from retention.
