Substudy and continuation of HEMI-SAB-UUS (NCT00491673) Study on radiostereometric measurements of acetabular wear in bipolar hemiarthroplasties and measurements of periprosthetic bone mineral density in cemented and uncemented hemiarthroplasties in patients with femoral neck fractures. Null hypothesis: No difference in acetabular wear or in bone mineral density changes between cemented and uncemented hemiarthroplasties
Patients are randomised to treatment with cemented or uncemented bipolar hemiarthroplasty. 1mm tantalum markers are inserted in the pelvis during surgery. RSA X-rays and DEXA measurements conducted postoperatively, after 3 and 12 months. Follow-up visits and clinical examination at 3 and 12 months.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
22
Cemented primary bipolar hemiarthroplasty of the hip
Uncemented primary bipolar hemiarthroplasty of the hip
Ullevål University Hospital
Oslo, Oslo County, Norway
Acetabular wear in mm
Time frame: 1 year
Loss of bone mineral density (BMD)
Time frame: 1 year
Functional outcome including pain (Harris Hip Score)
Time frame: 1 year
Activities Of Daily Living (Barthels ADL-Index)
Time frame: 1 year
Quality Of Life (EQ-5D)
Time frame: 1 year
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