Incidence of back pain after lumbar epidural anaesthesia for non-obstetric surgery--a preliminary report

This prospective survey attempt to study the incidence of post-operative back pain after lumbar epidural anesthesia for non-obstetric patterns and the correlation of this symptom with various contributing factors. One hundred and five patients who were given lumbar epidural anaesthesia as the sole anaesthesia for non-obstetric surgery were studied. The choice of equipment, number of attempts at giving the injection, duration of surgery and position of patient during surgery were documented. One week post-operatively, the patients were asked whether they recalled any back pain. The nature, duration and severity of the back pain was documented. Statistical analysis was achieved by using Chi-squared test. Twenty-eight patients recalled "injection site tenderness" post-operatively. The pain was mild to moderate in severity and lasted up to 4 days. None of the studied patients had post-operative "backache". The pain showed no significant correlation with needle size, technique of injection, use of epidural catheter, patient's position during surgery, duration and number of attempts made during epidural injection.