Hip joint disorder requiring total hip replacement surgery Musculoskeletal Diseases
Conditions
Interventions
Total hip arthroplasties using the TNS alloy stem are performed in cases that meet the inclusion criteria. Radiographs are taken immediately after the surgery, at 3 weeks, 6 weeks, 3 months, 6 months,
Sponsors
Mizuho (Japan)
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Patients over 20 years of age 2. Preoperative diagnosis of osteoarthritis, avascular necrosis, or rheumatoid arthritis 3. Consent to participate in the study
Exclusion criteria
Exclusion criteria: 1. Previous operation (total hip arthroplasty, osteotomy, tenotomy around hip joint) 2. Bilateral hip disorder 3. Rheumatoid arthritis of Charnley category C (multiple joint disease or other disease limiting mobility) 4. Past history of deep venous thrombosis or pulmonary embolism, metal allergy, severe obesity (Body Mass Index >35.0 kg/m²) 5. Severe diabetes mellitus 6. Infection around the hip joint
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Clinical outcomes assessed using the Japanese Orthopaedic Association (JOA) hip scores before the surgery, 6 weeks, 3 months, 6 months, and 1 year postoperatively 2. Pain, activities of daily life and mental health status assessed using the Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire (JHEQ) before the surgery, 3 months, 6 months, and 1 year postoperatively | — |
Secondary
| Measure | Time frame |
|---|---|
| The inhibition of stress shielding by the TNS stem assessed using radiographic images at 12 months | — |
Countries
Japan
Contacts
Public ContactYu Mori
Outcome results
None listed