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HEMI SHOULDER REPLACEMENT

Method
Implantation of a hemiarthroplasty – replacement of the head of the upper arm
Duration
60 to 90 minutes
Recovery time
6 to 12 weeks

What is a hemi shoulder replacement?

In a hemi shoulder replacement (also called a hemiarthroplasty) only the head of the upper arm (the humeral head) is replaced by an artificial component, while the socket of the joint (the glenoid) is preserved. This procedure is used above all with isolated necrosis of the humeral head or with fractures in which the glenoid is intact.

Indications for a hemiarthroplasty

  • Necrosis of the humeral head with an intact socket
  • Complex fractures of the head of the upper arm (e.g. a three- or four-part fracture)
  • Degenerative changes confined to the humeral head
  • Destruction of the head of the upper arm by a fracture with an intact rotator cuff

How the operation proceeds

  • General or regional anaesthetic
  • Anterior approach to the shoulder (deltopectoral approach)
  • Resection of the damaged humeral head
  • Fitting and anchoring of the implant in the humeral shaft (with or without cement)
  • Reconstruction of the rotator cuff where necessary

Rehabilitation after a hemi shoulder replacement

Phase I (0-3 weeks): immobilisation and passive mobilisation
  • Wearing a shoulder orthosis or sling for about 3 weeks
  • Passive movement within flexible limits (e.g. elevation to 90°)
  • Pain management, lymphatic drainage, cold therapy
Phase II (4-8 weeks): increasing mobility
  • Active-assisted training under physiotherapy guidance
  • Beginning to strengthen the shoulder muscles
  • Stabilisation and movement training
Phase III (from week 9): everyday function and load-bearing capacity
  • Increasing active movement (aim: more than 120° of elevation)
  • Returning to light everyday activities and, where appropriate, to work
  • Sporting load (e.g. swimming, cycling) after discussion with your doctor