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. 2017 Sep 27;5(9):2325967117728684.
doi: 10.1177/2325967117728684. eCollection 2017 Sep.

Recovery of Shoulder Rotational Muscle Strength After Arthroscopic Bankart Repair

Masatoshi Amako  1 , Hiroshi Arino  1 , Yoshifumi Tsuda  2 , Toyokazu Tsuchihara  2 , Koichi Nemoto  1
Affiliations

Recovery of Shoulder Rotational Muscle Strength After Arthroscopic Bankart Repair

Masatoshi Amako et al. Orthop J Sports Med. .

Abstract

Background: Shoulder rotational muscles act as dynamic stabilizers of the glenohumeral joint, and the recovery of muscle strength plays an important role in stabilizing the joint during postoperative rehabilitation. However, temporal changes in muscle strength after arthroscopic Bankart repair have not been clarified.

Purpose: To better understand the temporal recovery of shoulder rotational muscle strength after arthroscopic Bankart repair.

Study design: Case series; Level of evidence, 4.

Methods: Isokinetic concentric shoulder rotational muscle strength was evaluated in 50 patients who were diagnosed with recurrent dislocations of the glenohumeral joint and treated with arthroscopic Bankart repair.

Results: The mean peak torque/weight and total work were reduced significantly at 1.5 months after surgery (P < .0001) and returned to preoperative levels by 6 months for external rotation and 4.5 months for internal rotation. The contralateral peak torque ratios reached preoperative levels by 6 months after surgery. The ipsilateral peak torque ratios were reduced between 1.5 and 3 months after surgery and returned to preoperative levels at 6 months for external rotation and 4.5 months for internal rotation.

Conclusion: Isokinetic shoulder rotational muscle strength after arthroscopic Bankart repair recovered to preoperative levels by 6 months for external rotation and 4.5 months for internal rotation.

Keywords: arthroscopic Bankart repair; instability; isokinetic muscle strength; postoperative rehabilitation; shoulder.

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Conflict of interest statement

The authors declared that they have no conflicts of interest in the authorship and publication of this contribution.

Figures

Figure 1.
Figure 1.
Arthroscopic view of Bankart repair. (A) Preparation of the Bankart lesion. (B) Bankart repair with a single-suture technique.
Figure 2.
Figure 2.
Isokinetic shoulder rotational exercise test using a dynamometer.
See this image and copyright information in PMC

References

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