A Modified S-ROM Stem in Primary Total Hip Arthroplasty for Developmental Dysplasia of the Hip |
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Authors: | Hideaki Tamegai Takuya OtaniHideki Fujii MD PhD Yasuhiko KawaguchiTetsuo Hayama MD Keishi Marumo MD PhD |
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Affiliation: | Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan |
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Abstract: | This study examined the clinical outcome of 220 hips in 196 Asian patients who underwent primary total hip arthroplasty (THA) for treatment of developmental dysplasia of the hip (DDH) using a modified S-ROM modular (S-ROM-A) stem designed for Asians, after 2–5 years (mean, 3.3 years) of follow-up. The stem was placed so that the anteversion angle of the neck was decreased against the sleeve in 56% of the hips and increased in 18% of the hips. Bone ingrown fixation was achieved in 99.5% of the hips on X-ray at final follow-up. There were 2 (0.9%) dislocations postoperatively. In primary THA for treatment of DDH accompanied by femoral rotational deformity, the freely-rotatable modular stem provided favorable short-term outcomes by affording both morphological and functional advantages. |
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Keywords: | S-ROM-A Asian patients modular femoral stem developmental dysplasia of the hip primary total hip arthroplasty |
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