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Does rotational acetabular osteotomy affect subsequent total hip arthroplasty?
Kiyokazu Fukui1, Ayumi Kaneuji, Tanzo Sugimori
1Department of Orthopaedic Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahokugun, Ishikawa, 920-0293, Japan, 66406kf@kanazawa-med.ac.jp.
Previous rotational acetabular osteotomy (RAO) does not negatively impact outcomes for total hip arthroplasty (THA) in patients with developmental dysplasia of the hip (DDH). Midterm results show similar revision rates and functional scores for THA after RAO compared to primary THA.
Area of Science:
- Orthopedic Surgery
- Hip Reconstruction
- Degenerative Joint Disease
Background:
- Developmental dysplasia of the hip (DDH) can lead to osteoarthritis, sometimes requiring total hip arthroplasty (THA).
- Rotational acetabular osteotomy (RAO) is a surgical procedure used to treat DDH.
- The long-term effects of prior RAO on subsequent THA outcomes are not fully understood.
Purpose of the Study:
- To evaluate the impact of previous RAO on the outcomes of THA in patients with DDH-related osteoarthritis.
- To compare THA outcomes in patients with a history of RAO versus those undergoing primary THA.
Main Methods:
- A retrospective study comparing 22 hips that underwent THA after RAO (group R) with 30 hips that underwent primary THA (group C).
- Outcomes were assessed at an average follow-up of 8.2 years (range 7-11 years).
- Key outcome measures included component loosening, revision rates, Harris hip scores (HHSs), operative time, blood loss, and wear rates.
Main Results:
- Both groups demonstrated similar midterm outcomes with no component loosening or revisions.
- Harris hip scores (HHSs) were not compromised by prior RAO.
- No significant differences were observed in operative time, blood loss, or component wear rates between the groups.
- No major complications such as infection, dislocation, or fracture occurred in either group.
Conclusions:
- Rotational acetabular osteotomy (RAO) does not adversely affect midterm outcomes of total hip arthroplasty (THA) for developmental dysplasia of the hip (DDH).
- Prior RAO does not increase revision rates, compromise functional scores (HHSs), or shorten the survivorship of subsequent THA.
- These findings support RAO as a viable option for managing DDH before eventual THA.
