Sinister! The high pre-op left shoulder is less likely to be radiographically balanced at 2 years post-op

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Sinister! The high pre‑op left shoulder is less likely to be radiographically balanced at 2 years post‑op Joshua T. Bram1 · Nishank Mehta1 · John M. Flynn1 · Jason B. Anari1 · Keith D. Baldwin1 · Burt Yaszay2 · Joshua M. Pahys3 · Harms Study Group4 · Patrick J. Cahill1,5  Received: 22 May 2020 / Accepted: 19 October 2020 © Scoliosis Research Society 2020

Abstract Purpose  AIS patients consider shoulder balance an important cosmetic outcome after surgery. We examined the impact of preoperative left shoulder elevation (LSE) and choice of upper instrumented vertebra (UIV) on postoperative shoulder imbalance (PostSI). Methods  This was a retrospective cohort study utilizing a prospective AIS database. Patients had Lenke type 1–4 curves and preoperative shoulder height ≥ 1.0 cm. Patients with preoperative LSE and right shoulder elevation (RSE) were compared. Shoulder height difference