Article
Cementless total hip arthroplasty with delta-on-delta ceramic bearing in patients younger than 30 years with osteonecrosis of femoral head
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Authors
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Yong-Chan Ha
- Chung-Ang University College of Medicine, Seoul, Korea, Republic of (South Korea)
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Jun-Il Yoo
- Seoul National University Bundang Hospital, Seongnam, Korea, Republic of (South Korea)
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Byung-Ho Yoon
- Inje University College of Medicine, Seoul, Seoul, Korea, Republic of (South Korea)
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Woo-Lam Jo
- Catholic University of Seoul, Korea, Seoul, Korea, Republic of (South Korea)
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Young-Kyun Lee
- Seoul National University Bundang Hospital, Seongnam, Korea, Republic of (South Korea)
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Kyung-Hoi Koo
- Seoul National University Bundang Hospital, Seongnam, Korea, Republic of (South Korea)
| Published: | October 23, 2017 |
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Outline
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Objectives: Despite improvements in the quality of alumina ceramics, concerns about ceramic fracture has been remained still after total hip arthroplasty (THA) with use of a contemporary alumina-on-alumina ceramic bearing. The purpose of this study was to evaluate the clinical and radiographic outcomes of THA using Delta-on-Delta ceramic bearing and to determine osteolysis in young patients aged < 30 with osteonecrosis of femoral head.
Methods: Consecutive primary cementless THA using Delta-on-Delta ceramic bearing were performed in 49 patients (60 hips) who were younger than 30 years of age with osteonecrosis of femoral head
Results: Among them, 45 patients (55 THAs) were followed-up for minimum 5 years. There were 28 men (30 hips) and 17 women (25 hips). The average age at the time of the index arthroplasty was 26.2 (range 16-30) years. The mean follow-up period was 70.8 months (range, 60 to 95.8 months). Preoperative Harris Hip Score was 42.9 (range 22-58) points, which improved to 93.3 (range 85-100) points at the final follow-up examination. 3 of 55 hips (5.5%) had squeaking sound. No hip had revision or aseptic loosening. Radiographs demonstrated that no acetabular or femoral osteolysis was detected in any hip at the latest follow-up.
Conclusion: Contemporary cementless acetabular and femoral components with Delta-on-Delta alumina ceramic bearing couples function well with no osteolysis at 5 years minimum and average of 5 year follow-up in this series of young patients aged < 30 years with osteonecrosis of femoral head.
