Posterior Shoulder Stabilization

Phase I (Weeks 0-6)

1. Sling immobilization at all times (in flexion, abduction and 0° of rotation) except for showering and rehab under guidance of PT
2. Range of Motion
   • Weeks 0–3: None
   • Weeks 3–6: Begin passive ROM – Restrict motion to 90° of Forward Flexion, 90° of Abduction, and 45° of Internal Rotation
3. Therapeutic Exercise
   • Elbow/Wrist/Hand Range of Motion
   • Grip Strengthening
   • Starting Week 3: Begin passive ROM activities – Codman’s, Anterior Capsule Mobilization
4. Heat/Ice before and after PT sessions

Phase II (Weeks 6-12)

1. Sling immobilization for comfort only
2. Range of Motion
   • Begin AAROM / AROM
   • Goals: 135° of Forward Flexion, 120° of Abduction, Full External Rotation
3. Therapeutic Exercise
   • Continue with Phase I exercises
   • Begin active-assisted exercises – Deltoid / Rotator Cuff Isometrics
   • Starting Week 8: Begin resistive exercises for Rotator Cuff, Scapular Stabilizers, Biceps and Triceps (keep all strengthening exercises below the horizontal plane during this phase – utilize exercise arcs that protect the posterior capsule from stress)
4. Modalities per PT discretion

Phase III (Weeks 12-16)

1. Range of Motion – Progress to full AROM without discomfort
2. Therapeutic Exercise
   • Advance Phase II exercises
   • Emphasize Glenohumeral Stabilization, External Rotation and Latissimus eccentrics
   • Begin UE ergometer / endurance activities
3. Modalities per PT discretion

Phase IV (Months 4-6)

1. Range of Motion – Full without discomfort
2. Therapeutic Exercise
   • Continue with strengthening
   • Sport / Work specific rehabilitation – Plyometric and Throwing / Racquet Program
   • Continue with endurance activities
   • Return to sports at 6 months if approved
3. Modalities per PT discretion