Modified Broström procedure in patients with chronic ankle instability is superior to conservative treatment in terms of muscle endurance and postural stability.

Lee, Jin Hyuck; Lee, Soon Hyuck; Jung, Hae Woon; Jang, Woo Young

Purpose: To compare muscle strength, muscle endurance, and postural stability in both the affected and unaffected ankles between patients with chronic ankle instability (CAI) who underwent conservative treatment and those who underwent the modified Broström procedure (MBP).Methods: A total of 67 patients (37, conservative treatment; 30, MBP) participated. Muscle strength and muscle endurance were measured using an isokinetic device, and postural stability was tested using a postural stabilometry system. We used the independent t test for continuous variables with a normal distribution and Fisher's exact test for categorical variables.Results: There was no difference in the muscle strengths of the affected and unaffected ankles between the groups. The muscle endurance of plantarflexion and inversion muscles was significantly lower in the affected ankles of the conservative treatment group than in those of the MBP group (plantarflexion: 209 ± 103.1 vs. 318 ± 162.2, p = 0.001; inversion: 93 ± 58.7 vs. 154 ± 65.9, p Conclusion: The MBP may significantly improve muscle endurance and dynamic postural stability in CAI patients in whom conservative treatment has failed. Therefore, clinicians should consider using MBP instead of conservative treatment when patients show severe muscle weakness or dynamic postural instability.Level Of Evidence: Case-control study, Level III.

ANKLE injuries; ANKLE injury treatment; MUSCLE strength; POSTURE; JOINT hypermobility; ANKLE surgery; ORTHOPEDIC surgery; POSTURAL balance; SPRAINS; RETROSPECTIVE studies; CASE-control method; RESEARCH funding

Knee Surgery, Sports Traumatology, Arthroscopy, 2020, Vol 28, Issue 1, p93

0942-2056

Academic Journal

10.1007/s00167-019-05582-4