Acetabular cup fixation with and without screws following primary total hip arthroplasty: migration evaluated by radiostereometric analysis.

ABSTRACT:

Background

Early cup migration after total hip arthroplasty (THA) is correlated to late revision due to aseptic loosening. However, the use of screws for increased cup stability remains unclear and debated. The purpose of this study is to assess acetabular migration between cups fixated with and without the use of screws.

Methods

Patients underwent primary THA using either a direct anterior (DA) or a direct lateral (DL) approach. The DA surgeon routinely supplemented cup fixation with 1 or 2 screws while the DL surgeon used no screws. At 7 follow-up visits up to 2 years post operation, patients underwent radiostereometric analysis (RSA) imaging for implant migration tracking. The primary outcome was defined as proximal cup migration measured with model-based RSA.

Results<

SUBMITTER: Polus JS 

PROVIDER: S-EPMC10787387 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature