Hip Arthroscopy Followed by 6-Month Rehabilitation Leads to Improved Periarticular Muscle Strength, Except for Abductors and External Rotators

Overview

Journal Arthrosc Sports Med Rehabil

Date 2024 Feb 21

PMID 38379599

Authors

Guillaume Servant

Hugo Bothorel

Anthony Pernoud

Francois Fourchet

Panayiotis Christofilopoulos

Affiliations

Soon will be listed here.

Abstract

Purpose: To evaluate the variations in hip muscles strength following arthroscopy and 6-month rehabilitation in patients treated for femoroacetabular impingement (FAI).

Methods: A retrospective analysis was carried out on a series of patients who were arthroscopically treated for FAI at La Tour Hospital between 2020 and 2022. Bilateral isometric strengths of 8 hip-related muscles (abductors, adductors, hamstrings, quadriceps, extensors, flexors, internal and external rotators) were assessed using a handheld dynamometer before surgery and postoperatively after 6 months of rehabilitation in terms of relative strength changes between time points.

Results: A total of 29 patients (aged 26.9 ± 7.1 years, 86% of women) were included. Except for the abductors, which remained of comparable strength than before surgery, a statistically significant ( < .05) increase in hip muscle strength on the operated side could be noted at 6 postoperative months for hamstrings (9% ± 17%, = .041), quadriceps (11% ± 27%, = .045), extensors (17% ± 32%, = .006), flexors (17% ± 29%, = .003), adductors (18% ± 23%, < .001), and internal rotators (32% ± 36%, < .001). The proportion of patients who reached a strength level above their preoperative status ranged from 62% (quadriceps) to 86% (adductors and flexors), depending on the muscle studied. The external rotators were the only muscles that remained significantly weakened at 6 months on both operated (-13% ± 26%, = .002) and nonoperated (-17% ± 25%, < .001) sides, with a decrease beyond 15% in almost half of the patients (45% and 48%, respectively).

Conclusions: Arthroscopic treatment followed by 6-month rehabilitation granted to most FAI patients a higher strength level for several hip muscles, except for abductors and external rotators, which remained comparable and weakened, respectively.

Level Of Evidence: Level IV, therapeutic case series.

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