The ossification of the posterior longitudinal ligament of the spine (OPLL). The Investigation Committee on OPLL of the Japanese Ministry of Public Health and Welfare.
- Nihon Seikeigeka Gakkai zasshi
Address reprint requests to: Luciano Merlini, M.D., Department of Neuropathology, Istituto Ortopedico Rizzoli, Via Codivilla 9, 1-40136 Bologna, Italy leg. Three days before admission to the hospital, while straining, he felt a very sharp pain down his legs and subsequently developed paraparesis with sphincter involvement. On physical examination stiffness of the lumbosacral spine, paraparesis and loss of sphincter tone were identified. Radiological studies of the lumbosacral spine were obtained (Figs. 1-3). In view of the clinical and radiological evidence it was decided to perform a surgical decompression with a posterior approach.