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Related Experiment Video

Updated: Jul 11, 2026

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty

Published on: February 27, 2018

Cement-within-cement stem exchange using the collarless polished double-taper stem.

Daniel G Mandziak¹, Donald W Howie, Susan D Neale

¹Department of Orthopaedics and Trauma, Royal Adelaide Hospital, Adelaide, South Australia, Australia.

The Journal of Arthroplasty

|October 9, 2007

Summary

Cement-within-cement femoral stem exchange in revision hip arthroplasty shows excellent long-term outcomes. This technique preserves the femur, avoiding stem re-revision and radiographic loosening in patients.

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Area of Science:

Orthopedic Surgery
Biomaterials Engineering

Background:

Revision hip arthroplasty is frequently necessitated by implant failure or wear.
Maintaining femoral bone stock during revision procedures is crucial for long-term implant survival.

Purpose of the Study:

To evaluate the clinical and radiographic outcomes of the cement-within-cement femoral stem exchange technique.
To assess the long-term efficacy of this bone-preserving revision strategy.

Main Methods:

Prospective monitoring of 23 revision hip arthroplasties using a collarless polished double-taper stem.
Radiographic assessment of stem subsidence using the Ein Bild Röentgen Analyse (EBRA) method.
Follow-up for up to 12 years.

Main Results:

No instances of stem re-revision or radiographic loosening were observed.
Average stem subsidence was 0.8 mm, consistent with intentional design features and comparable to primary hip arthroplasty.
Common indications for revision included recurrent dislocation and acetabular revision.

Conclusions:

The cement-within-cement femoral stem exchange technique demonstrates excellent long-term clinical and radiographic results.
This bone-preserving approach is a viable option for revision hip arthroplasty, extending the utility of cemented stems.