Ulnar Nerve Palsy in Elderly Patients
Cubital tunnel syndrome with intrinsic muscle atrophy in elderly patients occasionally fails to respond to surgical decompression of the entrapped nerve. It is believed that severe irreversible changes due to prolonged nerve entrap-ment or insufficient decompression of the nerve are frequently responsible for the persistent symptoms and occasional cervical radiculopathy. However, magnetic resonance imaging (MRI) often reveals spinal cord segment compression at the C5/6 intervertebral space, where the C8 spinal cord segment is located, instead of C8 root compression at the C7/T1 intervertebral level in patients with persistent ulnar entrapment neuropathy. We studied ulnar nerve palsy with cervical spinal cord compression utilizing various kinds of evaluation methods to assess whether the cubital or cervical lesion was more responsible for the symptom.
KeywordsUlnar Nerve Cervical Spondylotic Myelopathy Somatosensory Evoke Potential Cervical Spondylosis Cubital Tunnel
Unable to display preview. Download preview PDF.
- 2.Hattori S, Koyama M, Hayakawa H, Kawai S, Saiki K, Sigematu A (1975) Cervical spondylotic myelopathy: Pathology and types. Rinsyoseikeigeka (Clin Orthop Surg) 10:48–56Google Scholar
- 3.Hirabayashi K, Satomi K, Wakano K (1983) Level diagnostic neurology of cervical spondylotic myelopathy—Retrospective observation in cases treated by anterior spinal fusion at a single level. Rinshoseikeigeka (Clin Orthop Surg) 19:409–415Google Scholar
- 4.Kokubunn S (1984) Neurological localization of the symptomatic level of lesion in cervical spondylotic myelopathy. Rinsyoseikeigeka 19:417–424Google Scholar
- 5.Tsuzuki N, Honda H, Tanaka Y (1983) Morhological variations of human cervical spinal cord segment and roots and their clinical significance. Rinshoseikeigeka (Clin Orthop Surg) 34:229–235Google Scholar