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. 2022 Dec;142(12):3927-3935.
doi: 10.1007/s00402-021-04290-4. Epub 2021 Dec 29.

Isokinetic and functional shoulder outcomes after arthroscopic capsulolabral stabilization

Ewa Breborowicz  1 , Przemyslaw Lubiatowski  2   3 , Marta Jokiel  2   4 , Maciej Breborowicz  2 , Jakub Stefaniak  2 , Adam Zygmunt  2 , Marcin Wojtaszek  2 , Piotr Kaczmarek  3 , Leszek Romanowski  2
Affiliations

Isokinetic and functional shoulder outcomes after arthroscopic capsulolabral stabilization

Ewa Breborowicz et al. Arch Orthop Trauma Surg. 2022 Dec.

Erratum in

Abstract

Introduction: Shoulder stability is secured by dynamic and static stabilizers. Rotator cuff is responsible for dynamic stabilization. In cases of shoulder instability their activity is disturbed. Capsulolabral repair restores mainly static stabilization. This surgery treatment technique of shoulder instability was first described by Bankart in 1923. His idea, with further modifications, is commonly used up to this day. Evaluation of muscle shoulder recovery after stabilization should be one of the important criteria to allow patient to return to sport and work. However, not much isokinetic assessment after capsulolabral repair was described. The aim of this study were the following: the comparative assessment of the shoulder rotatory strength in patients following arthroscopic capsulolabral repair of unilateral anterior traumatic instability and clinical assessment with comparison of pre and post-operative results.

Material and methods: Forty-five patients, 14 women and 31 men, with an average follow-up of 4.4 years were tested bilaterally for internal and external rotation strength at four angular velocities. ASES and UCLA tests were collected before and after surgery.

Results: The values of peak moment and muscle power parameters were slightly lower for an operated shoulder in comparison to a healthy shoulder for the external rotation. Total work parameter in external rotation was significantly lower for the operated shoulder in comparison to the non-operated side. The internal/external muscle group balance was lower for the operated shoulder in comparison to reference values in the women group. Furthermore, both ASES and UCLA scores were significantly higher after operation.

Conclusions: After arthroscopic capsulolabral shoulder stabilization, slight differences in isokinetic evaluation, especially in external shoulder rotation, occur. It affects rotators muscle balance. In functional evaluation significant improvement in shoulder function occurs.

Keywords: Capsulolabral repair; Isokinetic evaluation; Shoulder biomechanics; Shoulder instability.

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Conflict of interest statement

All authors declare that they have no conflict of interest.

Figures

Fig. 1
Fig. 1
Patient position during examination
Fig. 2
Fig. 2
Results of clinical assessment mesured with ASES and UCLA scores before and after surgery
See this image and copyright information in PMC

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