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Updated: Jun 25, 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

Constrained liners for recurrent dislocations in total hip arthroplasty.

R Knudsen¹, O Ovesen, P Kjaersgaard-Andersen

¹Department of Orthopedics, Odense University Hospital, Odense, Denmark. rolandknudsen@hotmail.com

Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy

|February 7, 2009

Summary

Constrained liners (CL) effectively treat recurrent hip dislocations after total hip arthroplasty (THA), showing a low complication rate and reduced risk of re-dislocation in a retrospective study.

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Area of Science:

Orthopedic Surgery
Biomedical Engineering

Background:

Recurrent hip dislocations are a significant complication following total hip arthroplasty (THA).
Managing these dislocations often requires advanced implant solutions.

Purpose of the Study:

To evaluate the efficacy and complication rates of using a constrained liner (CL) as a secondary prophylactic treatment for recurrent hip dislocations post-THA.

Main Methods:

Retrospective review of 40 patients who received a CL after THA for recurrent dislocations.
Median follow-up period of 27 months (range 7-77 months).

Main Results:

Five patients (12.5%) required revision surgery during the follow-up period.
Revisions were due to one deep infection and four re-dislocations.

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

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Surgical Technique of the 3-Dimensional-printed Personalized Hip Implant for the Treatment of Canine Hip Dysplasia

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The CL demonstrated a satisfactory low complication rate and a relatively low risk of re-dislocation.

Conclusions:

Constrained liners (CL) are a viable treatment option for patients experiencing recurrent hip dislocations after THA.
This approach offers a favorable safety profile with a manageable complication rate.