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CC BY-NC-ND 4.0 · Revista Chilena de Ortopedia y Traumatología 2023; 64(01): e11-e16
DOI: 10.1055/s-0043-1760861
Original Article

Evaluation of the Mini-open Treatment for CAM-type Femoroacetabular Impingement

Article in several languages: español | English
Martín Salgado 
1   Departamento de Traumatología y Ortopedia, Hospital Dr. Sotero del Rio, Clinica MEDS, Santiago, Chile
2   Equipo de Cirugía Reconstructiva Articular, Complejo Asistencial Dr. Sótero del Río, Santiago, Chile
,
Carolina Avilés 
1   Departamento de Traumatología y Ortopedia, Hospital Dr. Sotero del Rio, Clinica MEDS, Santiago, Chile
,
Felipe Fernández
1   Departamento de Traumatología y Ortopedia, Hospital Dr. Sotero del Rio, Clinica MEDS, Santiago, Chile
,
María Loreto Letelier 
3   Departamento de Traumatología y Ortopedia, Universidad de Chile, Santiago, Chile
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Abstract

Objective To describe and evaluate the results of the treatment of femoroacetabular impingement (FAI) with the unassisted mini-open approach in a defined population.

Materials and Methods We performed a prospective clinical and functional assessment of fifty young patients with CAM-type FAI, with very low sports demand, treated by the unassisted mini-open approach. We included patients older than 18 years of age, with a diagnosis of symptomatic FAI, complete radiologic study, and positive lidocaine test. We excluded patients with previous hip pathology. We compared the pre- and postoperative modified Harris Hip Score (MHHS) (through the Wilcoxon test) and the pre- and postoperative scores on the Visual Analogue Scale (VAS) (through the Friedman analysis of variance [ANOVA] test). significance was established as p < 0.05. In total, 50 patients met the described inclusion criteria: 33 male and 17 female subjects.

Results The average age was of 36.8 ±  6.5 years. The average alfa angle was of 62.6° ±  5.6°. All patients had grade-1 Tonnis index osteoarthritis. In total, 39 patients had level 3 of activity (according to the Tegner scale). The mean follow-up was of 27.3 ±  6.2 (minimum of 12) months. The score on the MHHS improved from a preoperative median of 60.5 (range: 30.8–84.7) points to a postoperative median of 96.8 (range: 91.3–100) points (p < 0.001). All patients presented a significant decrease in pain, with a median VAS score of 0 at 1 year of follow-up.

Conclusions This technique presents good clinical and functional outcomes in patients with low sports demand. There is a lack of studies showing the advantages and limitations of the mini-open approach concerning the resection of larger bumps or in other locations.

Level of Evidence: 4.

Keywords

femoracetabular impingement/surgery - femoracetabular impingement/complications - treatment outcome - humans - minimally-invasive surgical procedures - postoperative complications


Publication History

Received: 28 August 2021

Accepted: 28 September 2022

Article published online:
18 May 2023

© 2023. Sociedad Chilena de Ortopedia y Traumatologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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