To determine whether neurophysiological electrical pedicle testing (EPT) is a useful aid in the detection of malpostioned pedicle screw tracts EPT data from 246 screws in 32 spinal operations on 32 patients over a 5 year period (2009–2014) were recorded and analysed. In addition to physical palpation, a ball-tipped electrode delivered stimuli and the output was recorded by evoked electromyogram (EMG). When breach threshold values were recorded, the surgeon rechecked the tract for breaches and responded appropriately. In addition, standard motor evoked potential (MEP) and sensory evoked potential(SEP) spinal cord monitoring was performed. There were 24(9.8%) pedicle breaches by tract testing and 8(3.3%) by screw testing. In 11 instances in 7 patients where the tract testing showed a breach, the tract was redirected and subsequent screw testing showed adequate integrity of the pedicle. The total time for tract and screw testing was 25 seconds. There were no associated changes in MEP or SEP monitoring with any of the recorded pedicle breaches and none of the patients had any post-operative neurological deficit. EPT for the pedicle screw and tract is a safe, simple, practical and reliable technique which improves the accuracy of screw placement. Further studies would be required to confirm (and possibly revise) the threshold levels and to demonstrate whether EPT reduces the risk of misplaced screws or post-operative neurological deficit.
We reviewed the impact of the use of routine perioperative counselling on patients outcomes and experience when undergoing operative deformity correction for adolescent idiopathic scoliosis. Between January 2006 and December 2008, 28 consecutive patients underwent operative deformity correction for adolescent idiopathic scoliosis. 26 of these were seen at the initial presentation to clinic by a voluntary counsellor with experience of a family member having undergone scoliosis correction after they had been identified as being likely to require operative intervention. Most patients were only seen once preoperatively by the counsellor but several were seen on multiple occasions. Most patients were offered the opportunity to meet a post-operative patient who had previously had scoliosis correction surgery. SRS 22 questionnaires were completed pre and post-operatively. All curves were classified using the Lenke classification and pre and post operative Cobb angles were recorded. All patients and their parents were followed up at a mean interval of 3 years with a telephone survey regarding how they felt the input from a counsellor impacted on their experience.Objective
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