MOON Shoulder Instability-Cohort of Patients Undergoing Operative Treatment.

The objective of this prospective multicenter cohort study of patients undergoing surgery for
glenohumeral instability is to identify the outcomes, and more importantly, the previously
unknown predictors of sports function, activity level, general health, recurrent instability
symptoms, and surgical failures following surgery. Patient information at the time of the
surgery (demographics, validated outcome measures), in addition to the physical exam
findings, shoulder pathology at the time of surgery, and surgical treatment will be obtained.
The validated outcome instruments are American Shoulder and Elbow Surgeons Score, Western
Ontario Shoulder Instability, Kerlan Jobe Overhand Athlete Score, Shoulder Activity Score,
and RAND-36. Post-operative physical exam data will be obtained at 6 months after surgery.
Patient reported outcomes will be repeated at 2, 6, 10, and 20 years post-operatively. Our
multivariable analysis will identify which of the many factors related to the injury,
intra-operative treatment, postoperative care, physical patient characteristics, and
behavioral patient characteristics contribute to recurrence and poor outcome.

Inclusion Criteria:

This is a prospective cohort study; there is no control group. Subjects that are included
are all patients undergoing surgery for shoulder instability.

Inclusion criteria:

- Anterior, posterior, and inferior instability

- Ages 12-99

- Open and arthroscopic repair

- Revision of a previous shoulder instability repair

- Latarjet/bone augmentation

Exclusion Criteria:

- Workers compensation patients

- Prisoners

- Non-English speaker

- Not mentally competent

- Unable/unwilling to return for clinical follow-up

- Arthroplasty patients

- Rotator cuff tears

- Fractures