Secondary osteoarthritis caused by hip dysplasia or osteonecrosis of the femoral head
Conditions
Interventions
Total hip arthroplasty using Initia Stem
Total hip arthroplasty using Perfix HA 910 stem
Sponsors
Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1) Primary total hip arthroplasty 2) Age: 20-75 years old 3) Male and Female 4) Patients with the ability of consent and writing 5) Patients who can visit hospital as scheduled during the research period
Exclusion criteria
Exclusion criteria: 1) Patients with immature bone structure 2) Patients with the loss of abduction muscle in affected leg 3) Patients with insufficient bone mineral density (e.g. Corticosteroid-induced metabolic bone disease) 4) Patients with insufficient skin covering around the hip joint 5) Patients with neuromuscular disease (e.g. Charcot disease) in affected leg 6) Patients with the infection (e.g. osteomyelitis in proximal femur or purulent infection in the hip joint) 7) Patients with stovepipe-like femur 8) Patients with radiation osteonecrosis of acetabulum 9) Patients with systemic or local infection 10) Patients with vascular interruption in affected leg 11) Patients without the ability of walking at the postoperative time 12) Suspicious patients with metal allergy 13) Pregnant patients, pregnant suspicious patients, or patients who hope for pregnancy 14) Patients with the disease which can affect consent or evaluation of the study, including dementia, schizophrenia, depression, panic disorder, or generalized anxiety disorder 15) Patients who need to undergo the lower extremity surgery within six months after participating in the study, including total hip arthroplasty and total knee arthroplasty 16) Patients who underwent the lower extremity surgery within six months before participating in the study, including total hip arthroplasty, total knee arthroplasty, or osteotomy 17) Patients who doctors judged unsuitable for the study
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Comparison of the change of bone mineral density around the stem between Initia stem and Perfix HA 910 stem based on previous report describing the change of bone mineral density around cement-less stem. | — |
Secondary
| Measure | Time frame |
|---|---|
| To examine the relationship of the change of bone mineral density around the cement-less stem with investigation items, including background, clinical assessment, radiograph, and patient-reported outcome. | — |
Countries
Japan
Contacts
Public ContactGoro Motomura
Graduate School of Medical Sciences, Kyushu University Department of Orthopaedic Surgery
Outcome results
None listed