osteoarthritis of the hip
Conditions
Interventions
1. Collum Femoris Preserving Stem
2. Straight stem total hip arthroplasty (such as the Zweymuller)
both groups:
Trabecular Oriented Pattern (T.O.P.) cup
Sponsors
Onze Lieve Vrouwe Gasthuis
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: • Male or female being 18 years or older • Patients meet the criteria for osteoarthritis: -Pain in hip -Arthritic changes on radiograph: joint space narrowing femoral / acetabular osteofytes, cysts and signs of sclerosis • Patients not responding to conservative therapy • Written informed consent for study participation
Exclusion criteria
Exclusion criteria: • Patients who are mentally impaired and not able to fill out questionnaires • Patients who have previously received a THA on the contralateral hip. • Patients who do not know the Dutch, or English or German language • Patients with a BMI of more than 40 • Patients with skeletal immaturity • Patients with a life expectancy of less than 3 years • Patients with altered anatomy resulting in impossibility for the CFP procedure, according to the surgeon e.g.: -hip dysplasia with high luxation -post traumatic severe anatomy change -post correction osteotomy • Patients with extremity amputation • Patients with an active malignant disease or current cytostatic treatment • Patients who are participating in another trial • Known alcohol or drug abuse • Any condition that would impede measurement of efficacy to the opinion of the surgeon • Patients with a previous contralateral hip arthroplasty • Patients with avascular head necrosis resulting from sickelcel anemia
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The Dutch, English and the German version of the Hip disability and Osteoarthritis Outcome Score (HOOS) will be our primary endpoint | — |
Secondary
| Measure | Time frame |
|---|---|
| Hb drop perioperatively Trendelenburg test Timed Up and Go complications Pain on a Numeric Rating Scale (NRS) use of analgesics (5 point Likert scale) satisfaction wound aspect SF-12 (health related quality of life) EQ-5D Harris Hip Score position of the prosthesis migration osteolysis radiolucency | — |
Countries
Netherlands
Outcome results
None listed