Computed tomography-based custom-made stem for dysplastic hips in Japanese patients.
case_series · Level IV
Where this comes from
- Record sourced from PubMed, PMID 18617364.
- Also identified by DOI 10.1016/j.arth.2007.12.021.
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Abstract
We investigated 55 hips of 53 patients with dysplastic hips. Individual computed tomography data were used in the manufacturing of cementless custom-made stems made of Ti-6Al-4V. The proximal one third was coated using porous coating covered with hydroxyapatite coating. The average age at surgery was 60 years and the average follow-up was 7 years. Five patients (9%) complained of postoperative thigh pain. According to Engh's radiologic classification system, there was bone-ingrown fixation in all hips. The cortical index and canal flare index were lower, and stem diameter was greater in the 11 hips (20%) with severe stress shielding than in the remaining 44 hips. Although the results obtained with this custom-made stem system for dysplastic hips were excellent, stress shielding is still an issue.
Medical subject headings
- Arthroplasty, Replacement, Hip
- Bone Diseases, Developmental
- Computer-Aided Design
- Hip Prosthesis
- Prosthesis Design
Anatomy
- hip