Young-Kyun Lee1, Ki-Choul Kim2, Byung-Ho Yoon3, Tae-Young Kim4, Yong-Chan Ha5, Kyung-Hoi Koo1,6. 1. Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, South Korea. 2. Department of Orthopaedic Surgery, Dankook University Hospital, Cheonan, South Korea. 3. Department of Orthopaedic Surgery, Inje University College of Medicine, Seoul Paik Hospital, Seoul, South Korea. 4. Department of Orthopaedic Surgery, Konkuk University Medical Centre, Chungju, South Korea. 5. Department of Orthopaedic Surgery, Chung-Ang University College of Medicine, Seoul, South Korea. 6. Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea.
Abstract
BACKGROUND: Despite improvements in the mechanical properties of alumina ceramics, the outcome of total hip arthroplasty (THA) with contemporary ceramic bearings in young patients remains a matter of concern. We evaluated the results of cementless THA with the use of the delta ceramic bearing, and determined the prevalence of osteolysis, squeaking, and ceramic fracture in patients aged < 30 years at mid-term. METHODS: From March 2008 to January 2012, 76 consecutive patients (91 hips), younger than 30 years, underwent cementless THA with Delta ceramic bearings. In each follow-up, the clinical evaluation including noise and radiological evaluations were recorded. RESULTS: Among them, 72 patients (86 THAs) were followed-up for a minimum of 5 years (mean 70.8; 60-95.9 months). There were 44 men (47 hips) and 28 women (39 hips). The mean age at the time of the index arthroplasty was 25.9 (16-30) years and the mean preoperative Harris Hip Score (HHS) was 59.4 (23-79) points. HHS improved to 96.3 (64-100) points at the final follow-up evaluation. 8 hips (9.3%) exhibited grinding or squeaking. No hip had aseptic loosening and no hip was revised. No osteolysis was detected around any acetabular or femoral components. CONCLUSIONS: Our results suggest that cementless THA with the use of Delta ceramic bearing provides satisfactory results without osteolysis or ceramic fracture in patients aged <30 years at a mid-term follow-up.Clinical Trials.gov Protocol Registration System (trial no. NCT01838096).
BACKGROUND: Despite improvements in the mechanical properties of alumina ceramics, the outcome of total hip arthroplasty (THA) with contemporary ceramic bearings in young patients remains a matter of concern. We evaluated the results of cementless THA with the use of the delta ceramic bearing, and determined the prevalence of osteolysis, squeaking, and ceramic fracture in patients aged < 30 years at mid-term. METHODS: From March 2008 to January 2012, 76 consecutive patients (91 hips), younger than 30 years, underwent cementless THA with Delta ceramic bearings. In each follow-up, the clinical evaluation including noise and radiological evaluations were recorded. RESULTS: Among them, 72 patients (86 THAs) were followed-up for a minimum of 5 years (mean 70.8; 60-95.9 months). There were 44 men (47 hips) and 28 women (39 hips). The mean age at the time of the index arthroplasty was 25.9 (16-30) years and the mean preoperative Harris Hip Score (HHS) was 59.4 (23-79) points. HHS improved to 96.3 (64-100) points at the final follow-up evaluation. 8 hips (9.3%) exhibited grinding or squeaking. No hip had aseptic loosening and no hip was revised. No osteolysis was detected around any acetabular or femoral components. CONCLUSIONS: Our results suggest that cementless THA with the use of Delta ceramic bearing provides satisfactory results without osteolysis or ceramic fracture in patients aged <30 years at a mid-term follow-up.Clinical Trials.gov Protocol Registration System (trial no. NCT01838096).
Entities:
Keywords:
ceramic bearings; total hip arthroplasty; young patient
Authors: Ricardo Fernandez-Fernandez; Luis Moraleda-Novo; Joaquin Nuñez De Armas; Ana Cruz-Pardos Journal: Int Orthop Date: 2022-08-09 Impact factor: 3.479