Hyperlordosis as a possible factor in the development of spinal cord infarction.

A patient developed persistent symptoms and signs suggestive of partial spinal cord infarction after an operation involving the use of the hyperlordotic position. This position involves extension at the waist, such that both the head and feet are below the level of the waist. It is employed to increase surgical access to the abdomen. Where this position is adopted for a prolonged surgical procedure, existing risk factors for spinal cord ischaemia should urge caution in the use of epidural analgesia.