Robotic-assisted versus conventional total hip arthroplasty in Crowe Type 3-4 developmental dysplasia of the…

Cohort studyHip international : the journal of clinical and experimental research on hip pathology and therapy· Aug 2026

Robotic-assisted versus conventional total hip arthroplasty in Crowe Type 3-4 developmental dysplasia of the hip: a single-centre retrospective comparative cohort study.

Murat Kezer, Kayhan Turan, İsmet Yalkın Çamurcu … Onur Gültekin

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ArthroplastyCohort studyTreatmentQ2IF 1.9

Robotic-assisted hip replacement took longer than conventional surgery in severe hip dysplasia.

Robotic-assisted versus conventional total hip arthroplasty in Crowe Type 3-4 developmental dysplasia of the hip: a single-centre retrospective comparative cohort study.

Murat Kezer … Onur Gültekin

Hip international · Aug 2026 · Q2 in Orthopedics

Purpose

The aim of this study was to compare the radiographic accuracy, clinical outcomes, and complications of robotic-assisted total hip arthroplasty (rTHA) and conventional total hip arthroplasty (cTHA) in patients with Crowe type 3-4 developmental dysplasia of the hip (developmental dysplasia of the hip).

Methods

This single-centre retrospective comparative study included 38 patients with Crowe type 3-4 developmental dysplasia of the hip who underwent total hip arthroplasty (total hip arthroplasty) between 2016 and 2021 (20 rTHA, 18 cTHA).

n = 38 patients

Results

robotic surgery took longer in these complex hip cases

rTHA

109.7minute

cTHA

93.5minute

More results

Acetabular anteversion and inclination were comparable between groups ( p = 0.099 and p = 0.231).

No significant differences were observed in postoperative leg-length discrepancy or Harris Hip Score.

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Conclusion · 1 of 2

rTHA and cTHA demonstrated comparable radiographic and clinical outcomes in Crowe type 3-4 developmental dysplasia of the hip at short- to mid-term follow-up.

Conclusion · 2 of 2

Although rTHA showed a trend toward improved implant positioning, operative time was longer. Larger prospective studies are required to determine potential long-term advantages of rTHA in severe developmental dysplasia of the hip.

Robotic-assisted versus conventional total hip arthroplasty in Crowe Type 3-4 developmental dysplasia of the hip: a single-centre retrospective comparative cohort study.

Robotic-assisted versus conventional total hip arthroplasty in Crowe Type 3-4 developmental dysplasia of the hip: a single-centre retrospective comparative cohort study.

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