Hip osteoarthritis, total hip replacement Musculoskeletal Diseases Coxarthrosis
Conditions
Interventions
The 75 patients recruited to the study will be randomly allocated to one of 3 groups:
1. Polar stem + R3 cup
2. Corail collarless + Pinnacle cup
3. Cora
they will not be aware of the prosthesis they have received until the end of the study. Although it is possible to randomise and blind the prosthesis to the patient and the Researcher gathering outcom
Sponsors
Joint UCL / UCLH / Royal Free Biomedical Research Unit (UK)
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. The surgeon and the patient must agree that total hip replacement (THR) is necessary 2. The patient must be fit for THR in the opinion of the surgeon and the interdisciplinary team 3. The indication for THR must be primary osteoarthritis, avascular necrosis, femoral neck fracture, or hip dysplasia 4. Patients requiring primary arthroplasty 5. Patients must be aged between 50 -? 75 years at the time of surgery 6. Both male and female 7. The patient must be capable of giving informed consent and express a willingness to comply with the post-operative review program 8. The patient must be a permanent resident in an area accessible to the study site
Exclusion criteria
Exclusion criteria: 1. Post-traumatic OA (proximal femur fracture) 2. Post-infection in respective joint 3. Prior osteotomy of the affected hip 4. Patients under treatment for osteoporosis (with bisphosphonate) 5. OA patients diagnosed Charnley Classification 6. Patients requiring cortisone medication 7. Patients whose body mass index is higher than 35 8. Patients already participating in the RSA hip study. 9. The individual is unable or unwilling to sign the patient informed consent specific to this study 10. Previous THR on contra-lateral side 11. Patients requiring revision arthroplasty
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Comparison of migration of the cementless Polar stem (Smith & Nephew Orthopaedics) with a well established cementless collarless and collared comparison stem (Corail, DePuy Orthopedics) in THR, by using RSA | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Comparison of migration of the cementless R3 cup (Smith & Nephew Orthopaedics) with a well established cementless comparison (Pinnacle, DePuy Orthopedics) by using RSA 2. Documenting the performance of the Polar and Corail implants in the clinical setting over two years post-operatively, using information on infection and complication rates and specific Health Related Quality of Life (HRQoL) outcome/satisfaction scores to see whether there is any difference in performance | — |
Countries
United Kingdom
Outcome results
None listed