A prospective randomized study comparing accuracy and precision of acetabular component placement in total hip arthroplasty with use of novel electromagnetic navigation system versus freehand technique.
Patients with hip arthritis, who are to be treated with total hip arthroplasty will be randomized in two groups. Patents allocated to study group will get their acetabular components implanted with the help of electromagnetic navigation system. Patients allocated to the control group will get their acetabular components implanted with freehand technique. Accuracy and precision of implanted acetabular components will be assessed on images obtained by postoperative computed tomography. Postoperative inclination and anteversion angles of acetabular components will be measured by the independent technician. Results will be statistically analyzed and compared.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
84
Acetabular component placement in total hip arthroplasty will be performed wit the help of electromagnetic image-less navigation system.
In the control group acetabular components in total hip arthroplasty will be placed with the help of the freehand technique.
Valdoltra Orthopedic Hospital
Ankaran, Slovenia
Acetabular component position
Comparison of the precision and the accuracy of acetabular components between both groups
Time frame: Up to 48 hours after surgery
Surgical time
Comparison of duration of surgery between both groups
Time frame: Immediately after surgical procedure
Clinical result
Comparison of improvement of Harris hip score between both groups
Time frame: 8-10 weeks postoperatively
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