Collum Femoris-Preserving Hip Stem: Clinical and Radiographical Results from a Medium-Term, Multi-Centric Study in a Latin American Population



Luis Miguel Cely MD1* and Javier Perez Torres MD2

1 Department of Knee Reconstructive Surgery, Fundación Cardioinfantil – Instituto de Cardiología - Bogotá, Colombia.

2 Department of Hip Reconstructive Surgery, Los Cobos Medical Center - Bogotá, Colombia.

*Corresponding Author: Luis Miguel Cely MD, Department of Knee Reconstructive Surgery, Fundación Cardioinfantil – Instituto de Cardiología - Bogotá, Colombia.

DOI: https://doi.org/10.58624/SVOAOR.2024.04.076

Received: August 02, 2024     Published: August 26, 2024

 

Abstract

Background: There is a lack of information related to the medium-term results of short stem prosthesis in the Latin-American population. This study represents the longest follow-up results of the CFP prosthesis in the Latin-American population.

Methods: Two-hundred fifty-five patients treated with anatomic neck preserving from June 2013 to June 2020 were enrolled in the current study. The mean follow-up was 81 (60-96) months. All the subjects were available for the follow-up examination at a minimum of 5 years after surgery. Clinical results were assessed using Oxford Hip Score (OHS). Radiologic assessment was performed at each follow-up.

Results: Follow-up was 81 (60-96) months. Two-hundred fifty-five patients were contacted. The patients with hip dysplasia were operated with the CFP stem in 10.2% of all cases; with regards to the Dorr classification of the proximal femur, type 1: 9.8%; type 2: 88.6% and type 3: 1.6%. The overall prosthesis survival was 96.1%. The functional results were OHS pre: 9.1 (3-35), post: 44.4 (27-48).

Conclusion: The surgeries with CFP stem have excellent clinical results. The main indication of this short stem is primary hip osteoarthritis; nevertheless, we have some experience in dysplastic hips with good clinical results and survivorship. The results are comparable in terms of survivorship when this stem is implanted in Dorr 1, 2 and 3; however, we had a limitation, the sample was not comparable in the three groups. The overall survivorship, the functional scales and the radiographical results in the Latin-American population are comparable with literature reported around the world.

Level of Evidence: Level III

Keywords: Hip, Prosthesis, Radiographical, Clinical.

Citation: Cely LM, Torres JP. Collum Femoris-Preserving Hip Stem: Clinical and Radiographical Results from a Medium-Term, Multi-Centric Study in a Latin American Population. SVOA Orthopaedics 2024, 4:4, 89-95. doi; 10.58624/ SVOAOR.2024.04.076