Retrospective Study on Radiological Factors Predictive of Symptomatic Psoas Impingement Development in Protruding Cups in Primary Hip Arthroplasty
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Istituto Ortopedico Rizzoli
- Enrollment
- 52
- Locations
- 2
- Primary Endpoint
- Acetabular Cup Antiversion
Study Overview
Brief Summary
The purpose of this study is to identify radiological factors on TC of the hip that could lead to prediction of development of symptomatic psoas impingement in patients with protruding acetabular cup after primary total hip arthroplasty.
Study Design
- Study Type
- Observational
- Observational Model
- Case Control
- Time Perspective
- Retrospective
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Primary total hip arthroplasty
- •Execution of a postoperative Ct scan for pain, noises or planning of the contralateral THA
- •5 years minimum follow-up for the control group, tenotomy of the iliopsoas muscle in the cases group
- •Complete clinical and radiological data
Exclusion Criteria
- •Patient's refusal to participate
- •Non adequate Ct scans or made for periprosthetic fractures, component mobilization, periprosthetic infection or wearing of the prosthesis
- •Incomplete clinical and radiological data
- •Inadequate follow-up or regression of the iliopsoas impingement symptoms with non-operative treatment
Outcomes
Primary Outcomes
Acetabular Cup Antiversion
Time Frame: at baseline (day 0)
The angle between the tangent to the cup opening and the tangent to the posterior ischial spines in the axial plane
Acetabular Cup Inclination
Time Frame: at baseline (day 0)
The angle between the tangent to the cup opening and the interteardrop line in the frontal plane
Femoral Offset
Time Frame: at baseline (day 0)
The distance between the center of rotation and the femoral axis in the frontal plane
Acetabular Offset
Time Frame: at baseline (day 0)
The distance between the center of rotation and the Kohler line in the frontal plane
Eccentric Reaming
Time Frame: at baseline (day 0)
The distance between the native hip center of rotation and the acetabular cup center of rotation in the axial plane
Secondary Outcomes
No secondary outcomes reported