Coxarthrosis
Conditions
Keywords
Coxarthrosis, Hip arthroplasty, Anterior approach, Direct lateral approach, Hardinge approach, Smith-Petersen approach, Osteoarthrosis
Brief summary
In total hip arthroplasty several approaches can be used. The newly introduced minimally invasive anterior approach is supposed to cause less damage to tendons and muscles. At the same time there are reports that there are more complications when this approach is used. The direct lateral approach is the most used in Norway and is well documented. There are however those who postulate that there is to high risk of damage to the gluteus medius causing Trendelenburg gait. In the investigators hospital both the anterior and direct lateral approach is used with good result. The investigators main study hypothesis is that there is no difference between the use of anterior or direct lateral approach i total hip arthroplasty in regards to postoperative function and pain, complications, radiological finds (X-ray and MRI), markers for muscle damage (i.e CK-total) or other clinical outcomes.
Interventions
PROCEDUREDirect lateral approach in total hip arthroplasty
The use of direct lateral approach in total hip arthroplasty
PROCEDUREAnterior approach
The use of anterior approach in total hip arthroplasty
Sponsors
Sorlandet Hospital HF
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
20 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* Clinical and radiological diagnosis of coxarthrosis
Exclusion criteria
* Previous surgery on affected hip * No mental disability preventing follow-up
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in function | 2 years | Function of the operated hip will be evaluated after 3, 6, 12 and 24 months using Oxford Hip Score, Harris Hip Score and 6-minute-walk-test. Improvement in general health will be evaluated by using Eq-5D. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Muscle damage | Day of operation and next four consecutive days | CK-total is measured direct postoperativly and for the next four consequtive days. CRP is measured the first four postoperative days. |
| Pain | First four postoperative days | Pain using Visual Analog Scale and the use of analgetics (converted to opioid equivalent doses) are recorded. |
| X-ray assessment | 3 and 12 months | Placement of the acetabular component (inclination and version) and femoral stem (varus/valgus) and migration. |
| MRI | 3 and 12 months | A subselection of about 40 patients will undergo MRI-scans preoperatively and after 3 and 12 months to assess tendon- and muscledamage. |
Countries
Norway
Outcome results
None listed