Preventing decompensation in king type ii curves treated with cotrel-dubousset instrumentation:Strict guidelines for selective thoracic fusion

Between 19SS and 19EB, SO Hdnluscent idiopathic seolfjosg satiants with either King Type II [n = 1SI Of III (fi ¦ 31) curves were treated with Cotrul-Dubousset Instrumentation and had a mininium of 2-year follow-up, Flva af these patients had early postoperative decompensation, end have providad important. IcEsom far the Tutu re prevention and treatment of Ihase imbalances. Vlust pruLlojnatic was distinguishing between Kin9 Type II and double mjej01 curve patterns, proper Identification of King Type FI curves, which may be successfully treat ad w ih sclaclivo Ihoracic fusion, requires careful analysis of tip standing preoperative coronal rsiJruLirjpli as well as. the sfde benders, Ti-us, we now define Type curves based on ihe differential between tha thoracic and lumbar cjrva magnitude, apical veiiebral deviation Troni tha midline, and apical vertebral rotation on the standing nornnal radiograph in addition to a positive flexibility index.