Jichao Ye, Sean M Rider, Renaud Lafage, Sachin Gupta, Ali S Farooqi, Themistocles S Protopsaltis, Peter G Passias, Justin S Smith, Virginie Lafage, Han-Jo Kim, Eric O Klineberg, Khaled M Kebaish, Justin K Scheer, Gregory M Mundis, Alex Soroceanu, Shay Bess, Christopher P Ames, Christopher I Shaffrey, Munish C Gupta
PURPOSE: To evaluate the impact of the lowest instrumented vertebra (LIV) on Distal Junctional kyphosis (DJK) incidence in adult cervical deformity (ACD) surgery. METHODS: Prospectively collected data from ACD patients undergoing posterior or anterior-posterior reconstruction at 13 US sites was reviewed up to 2-years postoperatively (n = 140). Data was stratified into five groups by level of LIV: C6-C7, T1-T2, T3-Apex, Apex-T10, and T11-L2. DJK was defined as a kyphotic increase > 10° in Cobb angle from LIV to LIV-1...
March 16, 2023: European Spine Journal