Key result
Rotational acetabular osteotomy producing normal femoral head coverage resulted in significantly smaller maximal flexion and internal rotation compared to normal hips in a simulated analysis.
Why the study?
Does simulated rotational acetabular osteotomy with normal femoral head coverage reduce hip range-of-motion compared to normal hips in DDH?
Population
52 hips with developmental dysplasia of the hip and 73 normal hips, analyzed using computer models…
Comparison
Simulated rotational acetabular osteotomy with… vs 73 normal hips
Design
Other
Authors
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Targeting normal coverage after RAO may limit flexion and internal rotation; leaves open optimal reorientation targets balancing coverage and ROM.
Does simulated rotational acetabular osteotomy with normal femoral head coverage reduce hip range-of-motion compared to normal hips in DDH?
To achieve normal hip range-of-motion after rotational acetabular osteotomy for DDH, target angles providing slightly less than normal coverage may be preferred.
Hamada et al. (2015) studied Developmental dysplasia of the hip (DDH) (n=125). Rotational acetabular osteotomy (RAO) vs. Normal hips was evaluated on Maximal flexion and maximal internal rotation at 110° flexion with 20° adduction. Rotational acetabular osteotomy producing normal femoral head coverage resulted in significantly smaller maximal flexion and internal rotation compared to normal hips in a simulated analysis.
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