The open Latarjet procedure does not affect scapulohumeral rhythm three months postoperatively

Area of Science:

• Orthopedic surgery
• Biomechanics
• Shoulder joint kinematics

Background:

• Scapulohumeral rhythm is a key indicator of shoulder function.
• The impact of open Latarjet procedure on scapulohumeral rhythm remains understudied.

Purpose of the Study:

• To evaluate the short-term effects of open Latarjet procedure on scapulohumeral rhythm.
• To compare scapulohumeral rhythm in patients post-Latarjet surgery with asymptomatic individuals.

Main Methods:

• Electromagnetic device used to record scapulothoracic and glenohumeral kinematics.
• 3D dynamic scapulohumeral rhythm computed during arm elevation/depression pre- and post-surgery.
• SPM ANOVAs for statistical analysis of data from male patients and a healthy control group.

Main Results:

• No significant differences in scapulohumeral rhythm were found between operated and non-operated sides.
• Scapulohumeral rhythm remained consistent before and after surgery.
• No significant differences observed between the Latarjet group and the asymptomatic control group.

Conclusions:

• Open Latarjet procedure does not modify scapulohumeral rhythm at three months post-surgery.
• The procedure preserves shoulder joint coordination, similar to asymptomatic individuals.
• Suggests Latarjet procedure restores stability while maintaining shoulder mechanics.