THERE was a great decrease in the number of articles on conditions involving the spine and the thorax in the 1944 literature as compared with that of previous years, and only a few articles contain any real progress in orthopedic surgery.
—Walker459 present 3 cases of myelodysplasia associated with a dilatation of the spinal canal at the site of the anomaly and a case of vascular abnormality, angioma and aneurysm of the spinal cord accompanied with enlargement of the spinal canal at the site of the lesion. He discusses the roentgenographic and pathologic manifestations of myelodysplasia and points out that, although neoplastic conditions cause most instances of roentgenographically demonstrable enlargement of the spinal canal, congenital abnormalities of the spinal cord should be considered as etiologic factors.He believes that enlargement of the spinal canal in these cases presumably occurred early in the development of the person, probably
COBB JR. PROGRESS IN ORTHOPEDIC SURGERY FOR 1944 A Review Prepared by an Editorial Board of the American Academy of Orthopaedic Surgeons: XIV. Conditions Involving the Spine and Thorax, Exclusive of Those in the Lower Part of the Back. Arch Surg. 1946;52(1):98–112. doi:10.1001/archsurg.1946.01230050100007
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