Assessment of Change of Shoulder Balance in Patients with Adolescent Idiopathic Scoliosis after Correctional Surgery

Orthopaedic Surgery
Yu-Ming JianMing-Hsiao Hu

Abstract

To identify factors that influence shoulder balance and to determine whether a model can be made to predict shoulder balance after corrective surgery. This is a retrospective study in which we examined the records of with adolescent idiopathic scoliosis (AIS) patients who underwent single posterior spinal correction and fusion using all pedicle screws with derotation in our institution between January 2008 and June 2010. For the radiographic outcome measurement, we measured the preoperative lumbar curve, the main thoracic curve, and their difference (L_TH_D), and the degree of correction of the lumbar curve, the main thoracic curve, and their difference (c_L_TH_D) to evaluate their influence on postoperative shoulder balance. The preoperative flexibility of the proximal non-fusion curve on the immediate postoperative tilt of the upper endplate of the uppermost vertebra of fusion segments (Up_FuS) was used to evaluate and predict the shoulder balance at follow-up. For patients who had shoulder balance at follow-up, the average balance time was 7.1 months, and in most of them, balance was detected within 12 months. The main thoracic curve has the greatest influence on preoperative shoulder tilt and correction of the main thoracic...Continue Reading

References

Jan 1, 1996·Journal of Pediatric Orthopedics. Part B·J BagóC Villanueva
Nov 21, 2007·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Ibrahim AkelMuharrem Yazici
Mar 17, 2016·HSS Journal : the Musculoskeletal Journal of Hospital for Special Surgery·Benjamin T BjerkeMatthew E Cunningham
Nov 1, 2013·Spine Deformity·Burt YaszayUNKNOWN Harms Study Group

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