Charcot shoulder joint associated with syringomyelia: a case report.

A 36-year-old man with degenerative disease of the spine and cervical syringomyelia (syrinx) presented with new weakness and numbness in his left upper extremity. Examination revealed decreased range of motion (ROM), swelling, weakness, and diminished pinprick, vibratory, and proprioceptive sensation in the left upper extremity. Radiographic examination showed a severe destructive arthropathy; a biopsy ruled out malignancy. A culture was negative for infection, and a repeat magnetic resonance imaging (MRI) showed a patent syringo-peritoneal shunt with no change in syrinx size. He was diagnosed with a Charcot shoulder. Treatment consisted of nonsteroidal anti-inflammatory medication, passive motion exercises, and a protective sling. The patient with syringomyelia may experience sensory loss that prevents normal guarding, resulting in repetitive trauma and eventual joint destruction. Appropriate assessment, diagnostic work-up, and treatment are essential in the management of the Charcot joint. Patient education, including information on activities that may be harmful, must be included, as such knowledge may slow or prevent the impairment that comes with a Charcot joint.