Knee osteoarthritis. In animal studies teriparatide has shown a positive effect on fracture healing. So far, teriparatide (Forsteo ®) is only registrered for treatment of severe osteoporosis. A cemented total knee replacement needs "a healing process" between bone and cement to aquire stability. Studies using roentgen stereometric analysis (RSA) have shown that minimal but early migration of a prosthesis precludes later loosening.
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Patients suitable for elective total knee replacement due to primary or secondary osteoarthritis. 2. Ability to give informed consent 3. ASA group 1-2 Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range
Exclusion criteria
Exclusion criteria: • Rheumatic disease • Anamnes på svårare hjärtsjukdom , se ASA 1-4 enligt ovan • Reduced renal function - plasma creatinine >150 mmol/L for males, >125 for females • Simultaneous bilateral surgery • History of allergic reaction to the drug • Hypercalcemia • Metabolic diseases affecting the bone i.e. Pagets disease • Malignancy • Previous radiation
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: To evaluate if teriparatide given postoperatively to patients undergoing total knee replacement will lower the risk for late loosening of the prosthesis;Secondary Objective: No;Primary end point(s): The migration of the tibial part of the prosthesis will be analyzed during the first 2 years postoperatively using RSA (measures used will be translation, rotation och MTPM (maximal total point motion)). The patients will be randomized to either active treatment with teriparatide or no treatment | — |
Countries
Sweden