The aim of this study is to assess the influence of anterior abutment surgery using the Latarjet method on the kinematics of the scapula. The sub-objectives will be to show that Latarjet-type surgery does not lead to scapular dyskinesia and modification of muscle activity compared to a control group that has not undergone an operation.

Inclusion Criteria:

• Patient Group:

  • Male between 18 and 40 years-old
  • Practice a regular sports activity before the injury (s) requiring surgery
  • Present the clinical criteria leading to anterior abutment surgery using the Latarjet method
  • Surgery performed by surgeons from the Jean-Mermoz Private Hospital (69008 Lyon)
  • Have followed a post-surgery self-rehabilitation program

Control group:

• Male between 18 and 40 years-old
• Practice a regular sports activity

Both group:

oPatient having signed an informed consent o Subject affiliated or beneficiary of a social security scheme

Exclusion Criteria:

Patient group:

• Have another shoulder pathology on the side of the operated limb or on the contralateral side
• Present a constitutional hyper laxity
• Have stiffness or recurrence of dislocation of the shoulder post-surgery
• Have a body mass index greater than 30 kg / m² (to ensure sufficient accuracy to measure the movements of the scapula)
• Wear a pacemaker or any other metal device (e.g. patch with metal material)
• Present a contraindication to the use of measuring devices (intolerance to a weak electromagnetic field)

Control group:

• Present during the study or have presented in the past any musculoskeletal pathology in the right or left shoulder (WOSI or WORC score greater than 250).
• Have a body mass index greater than 30 kg / m² (to ensure sufficient accuracy to measure the movements of the scapula)
• Wear a pacemaker or any other metal device (e.g. patch with metal material)
• Present a contraindication to the use of measuring devices (intolerance to a weak electromagnetic field)

Both group :

o Protected subject: adult under guardianship, curatorship or other legal protection, deprived of liberty by judicial or administrative decision