Shoulder Disarticulation

Indications

  • Malignant tumours of the proximal humerus
  • Severe trauma
  • Infection or gangrene

Position

  • Supine with a bolster under the scapula, or lateral

Landmarks and Incision

  • Racquet incision from the coracoid along the deltopectoral groove
  • Continued around the axilla to create a deltoid flap

Superficial Dissection

  • Ligate the cephalic vein
  • Detach pectoralis major from the humerus
  • Divide coracobrachialis and short head of biceps near the coracoid

Deep Dissection

  • Ligate the axillary artery and vein proximally
  • Divide nerves under gentle traction for retraction away from the stump
  • Release latissimus dorsi and teres major
  • Divide the capsule and remaining rotator cuff to free the humeral head

Structures at Risk

Management

  • Similar to a high transhumeral amputation
  • Suture all proximal muscles across the glenoid to fill the cavity left by removing the humeral head
  • Retaining the humeral head when tumour margins allow improves shoulder contour
  • Round off the acromion for a better contour
  • Deltoid flap closed over the glenoid
  • Targeted muscle reinnervation can improve prosthetic control and reduce neuroma pain

Complications

  • Poor shoulder contour and prosthetic fitting
  • Low prosthetic use
  • Neuroma and phantom limb pain
  • Wound breakdown

Author Contributions

Page written by Dr James Drummond

Reviewed by Professor Phong Tran, Head of Orthopaedic Surgery, Western Health. Last updated 10 October 2026.