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Conservative treatment with hyperbaric oxygen therapy for cervical spondylotic amyotrophy
1Department of Orthopaedic Surgery, Imakiire General Hospital, Kagoshima, Japan. tofuku@m2.kufm.kagoshima-u.ac.jp
Study Design:
Small case series of patients with cervical spondylotic amyotrophy (CSA) managed by conservative treatment with hyperbaric oxygen (HBO) therapy.
Objective:
To study the effects of conservative treatment with HBO therapy of CSA patients.
Setting:
Department of Orthopaedic Surgery, Imakiire General Hospital, Kagoshima, Japan.
Methods:
This study included 10 patients with CSA who underwent rehabilitation, including cervical traction and muscle exercise, for some period of time but did not respond well to it, and were then managed by additional HBO therapy for rehabilitation. Information was obtained on the duration of symptoms and strength of the most atrophic muscle, intramedullary high-signal-intensity changes on T2-weighted magnetic resonance imaging, presence of 'snake-eyes' appearance and the number of stenotic canal levels.
Results:
The mean duration of symptoms before HBO treatment was 3.1 months. The axial T2-weighted magnetic resonance images of all 10 patients showed a 'snake-eyes' appearance. The mean number of stenotic canal levels was 0.3. There was marked improvement on manual muscle testing from a mean of 1.9 pretreatment to a mean of 4.4 at the last follow-up after HBO therapy. The outcomes of all 10 patients, whose results were classified as excellent or good, were considered clinically satisfactory.
Conclusion:
To our knowledge, conservative treatment with HBO therapy for CSA patients has not previously been described. It appears that HBO therapy might improve ischemic injury of the anterior horns in CSA patients with short duration of symptoms.
