Arthroplasty in Post-traumatic Arthritis: Surgery for shoulders with arthritis after and injury, fracture, or previous surgery can lessen shoulder pain and improve function with a special type of joint replacement.
Last updated Thursday, February 10, 2005
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Figure 1 - Humeroscapular motion interface Figure 2 - Deep surface of the deltoid About arthroplasty in post-traumatic arthritis
The basic principles of shoulder arthroplasty in post traumatic
arthritis are similar to those in degenerative arthritis, but some
important differences exist because of scarring and deformity.Scarring and deformity The anatomy is likely to be distorted by previous fracture and surgery.
The nonarticular humeroscapular motion interface is likely to be
scarred, obscuring important neurologic structures, such as the
axillary nerve. The tuberosities, the humeral shaft, and the glenoid
may be ununited or malunited.Restoring normal anatomical relationships As a first step, the humeroscapular motion interface must be
carefully freed, and the axillary nerve identified both as it crosses
the subscapularis and as it courses laterally on the deep surface of
the deltoid.
Case by case judgments must be made concerning the need for
osteotomy to try to restore more normal anatomic relationships,
recognizing that additional healing and postoperative protection may be
required. Again, the goal is restoration of anatomic relationships,
firm fixation of components, soft tissue balance, stability, and smooth
gliding in the nonarticular humeroscapular motion interface.
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Disclaimer
This resource has been provided by the University of Washington Department of Orthopaedics and Sports Medicine as general information only. This information may not apply to a specific patient. Additional information may be found at http://www.orthop.washington.edu or by contacting the UW Department of Orthopaedics and Sports Medicine.
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