Leg Length and Quality of Life After Total Hip Arthroplasty (EOS-PTH)

Assistance Publique - Hôpitaux de Paris

Status: Completed

Conditions: Total Hip Arthroplasty

Treatments: Procedure: Hip arthroplasty

Study type: Observational

Funder types: Other

Identifiers

NCT03437343

NI17039J

2017-A03333-50 (Registry Identifier)

Details and patient eligibility

About

This study used 3D reconstructions from the EOS biplanar radiographic imaging system to perform leg length measurements before and after THA (Total hip arthroplasty) on all included THA patients from 2015 to evaluate surgeon performance in restoring lower limb length after THA and the relationships between the quality of life, estimated by the HOOS score (Hip disability and osteoarthritis outcome score), and the anatomy of the new hip in standing position.

Full description

The study was conducted in patients who underwent a total hip arthroplasty in Lariboisiere Hospital, Paris, France, during the year 2015.

This retrospective study used 3D reconstructions from the EOS biplanar radiographic imaging system (EOS imaging, Paris, France) to perform leg length measurements before and after THA on all included THA patients from 2015 to evaluate surgeon performance in restoring lower limb length after THA. Included patients either had hip osteoarthritis or femoral head osteonecrosis. Patients were excluded if they were undergoing revision surgery, or had a contralateral THA or total knee.

The performance of the surgeons was judged using the Cumulative Sum control chart (CUSUM) method.

Our objective was to study surgeon performance, measured by their ability to restore the initial preoperative length of the operated leg or to equalize the length of the two legs, and evaluate the relationships between the quality of life, estimated by the HOOS score, and the anatomy of the new hip in standing position using the EOS imaging system.

Enrollment: 185 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• unilateral total hip replacement for osteoarthritis or avascular necrosis healthy contralateral hip
• age over 18 years
• informed consent to participate in the study
• radiographs obtained after total hip replacement using the EOS imaging system, filled HOOS form
• clinical follow-up of 12 months at least

Exclusion criteria

• past history of contralateral hip replacement
• ipsi or contralateral knee replacement
• hip arthroplasty performed using a Kerboull cross
• post-operative complications such as infection