To produce objective evidence that lifting is more comfortable in lumbar flexion than lumbar extension. Traditionally, lifting is taught in lumbar extension (“straight back”) but in our experience is more comfortable and stronger in flexion with backward lumbar tilt. 58 subjects performed maximal comfortable static lifts: ‘Natural’ lifting position - hip flexion, knee extension, lumbar extension Traditionally taught position - hip flexion, knee flexion, lumbar extension Backward pelvic tilt - hip flexion, knee flexion, lumbar flexion The order of these lifting methods varied to allow for variation due to fatigue/recruitment. All lifts were measured with a computerised dynamometer. The mean force for natural lifting was 13.4 kgs, for traditionally taught lifting 15.1 kgs and for backward pelvic tilt lifting 22.2 kgs This represented a 13% greater load for traditionally taught lift compared with natural lift, 66% greater for backward pelvic tilt compared with natural lift and 48% greater for backward pelvic tilt compared with traditionally taught lift.Purpose:
Method and results:
An analysis of significant neuromonitoring changes (NMCs) and evaluation of the efficacy of multimodality neuromonitoring in spinal deformity surgery. A retrospective review of prospectively collected data in 320 consecutive paediatric and adult spinal deformity operations. Patients were sub-grouped according to demographics (age, gender), diagnosis, radiographic findings (Cobb angles, MR abnormalities) and operative features (surgical approach, duration, levels of fixation). Post-operative neurological deficit was documented and defined as either spinal cord or nerve root deficit.Aim:
Method:
