Long-term Outcomes of Conical Tapered Stems in Cementless Total Hip Arthroplasty Due to Congenital Hip Pathologies (RetroCone)

Istituto Ortopedico Rizzoli

Status: Completed

Conditions: Dysplasia; Hip; Prosthesis Survival

Treatments: Device: Conical tapered stem

Study type: Observational

Funder types: Other

Identifiers

NCT04748458

589/2020/Oss/IOR

Details and patient eligibility

About

A retrospective consecutive population of patients treated with conical tapered stems in cementless total hip arthroplasty for osteoarthritis due to congenital hip pathologies will be selected. The aim of this retrospective study is to evaluate the long-term clinical and radiographic results of this implant and the survival rates in such a specific cohort.

Full description

Congenital hip pathologies may severely alter the local anatomy of the hip, making total hip arthroplasty (THA) due to osteoarthritis after congenital hip pathologies challenging. While it seems that congenital hip pathologies did not significantly influence the outcomes when compared to THA after osteoarthritis, the choice of implant was demonstrated to impact the survival rates of the THA after congenital hip pathologies.

To date, no guidelines exist about the correct choice of hip implant in congenital hip pathologies: only mid-term case series are available. Conical tapered stems have been frequently suggested for the most difficult cases.

The aim of this study is to describe the survival rates and the long-term clinical and radiological outcome of conical tapered stems in THAs after congenital hip pathologies.

Enrollment: 85 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Symptomatic hip osteoarthritis due to congenital hip pathologies
• Consecutive population with a minimum follow-up of 2 years
• Cementless total hip arthroplasty with conical tapered stem
• Pre-operative planning using CT
• Complete clinical and radiographic assessment

Exclusion criteria

• Other type of hip osteoarthritis
• Other type of implants
• Inadequate pre-operative planning (eg: no CT)
• Incomplete clinical and radiographic assessment

Trial design

85 participants in 1 patient group

Congenital hip pathologies

Description:

Conical tapered stem for osteoarthritis due to congenital hip pathologies

Treatment:

Device: Conical tapered stem