The incidence of post-traumatic syringomyelia ranges between 0·3 and 3·2%, dependent on the authors, with a mean of about 1·3%. 2,7, 2S, 27, 29, 33, 41, 42 The interval between spinal trauma and the appearance of neurological symp The first symptom in most cases is pain, which is increased by straining, coughing or sneezing/ 27, 41 followed by sensory deficit, motor loss and increase of spasticity.29 Autonomous symptoms such as abnormal sweating or hypertension are less frequent,29 but can also be the first symptom.37 The earliest clinical sign is loss of reflexes. 7, 42Diagnostic techniques have undergone an important evolution in recent years.Oil and gas myelography being replaced by metrizamide myelography associated with CT scan imaging. The recently developed MR imaging has now become the technique of choice. 11, 3 6 Intra-operative sonography is used to detect septations
SummaryA patient with complete post-traumatic paraplegia below T6 developed urinary problems and late secondary syringolmyelia. The concordance between the appear ance of micturition difficulties and the first sensory symptoms leads us to discuss the role of important and repeated efforts to obtain reflex micturition, during the development of post-traumatic syringomyelia.
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