Retrospective Study on Radiological Factors Predictive of Psoas Impingement

Istituto Ortopedico Rizzoli52 enrolled

Overview

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 Type

OBSERVATIONAL

Enrollment

Conditions

Hip Impingement Syndrome Prosthetic Complication

Interventions

Pelvis CT scanDIAGNOSTIC_TEST

Post-THA hip pelvis CT scan execution for pain, noise or THA planning for the controlateral hip, with identification of acetabular cup protrusion. Comparation of cases and controls to identify radiological factors that could potentially lead to symptomatic psoas impingement prediction.

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

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

Locations (2)

Istituto Ortopedico Rizzoli

Bologna, Emilia-Romagna, Italy

IRCCS Istituto Ortopedico Rizzoli

Bologna, Italy

Outcomes

Primary Outcomes

Acetabular Cup Antiversion

The angle between the tangent to the cup opening and the tangent to the posterior ischial spines in the axial plane