Rod strain after pedicle subtraction osteotomy: A biomechanical study

TY - JOUR

T1 - Rod strain after pedicle subtraction osteotomy

T2 - A biomechanical study

AU - Gehrchen, Poul Martin

AU - Hallager, Dennis Winge

AU - Dahl, Benny

AU - Harris, Jonathan

AU - Gudipally, Manasa

AU - Jenkins, Sean

AU - Wu, Ai-Min

AU - Bucklen, Brandon S

PY - 2016

Y1 - 2016

N2 - Pedicle subtraction osteotomy (PSO) can provide major sagittal correction for adult spinal deformity, sometimes achieving correction greater than 308. Surgeons have reported failure rates up to 30% within 2 years, increasing to 46% after 4 to 5 years (SDC Figure 1, http://links.lww.com/BRS/B87). Revision following failure is difficult on the patient. PSO has achieved positive outcomes, but when used to correct posture in older patients with spinal deformity and fixed sagittal imbalance, rod breakage often leads to multiple surgical revisions. These complications must be avoided.

AB - Pedicle subtraction osteotomy (PSO) can provide major sagittal correction for adult spinal deformity, sometimes achieving correction greater than 308. Surgeons have reported failure rates up to 30% within 2 years, increasing to 46% after 4 to 5 years (SDC Figure 1, http://links.lww.com/BRS/B87). Revision following failure is difficult on the patient. PSO has achieved positive outcomes, but when used to correct posture in older patients with spinal deformity and fixed sagittal imbalance, rod breakage often leads to multiple surgical revisions. These complications must be avoided.

KW - Ankylosing spine

KW - Pedicle subtraction osteotomy

KW - Rod strain

U2 - 10.1097/BRS.0000000000001431

DO - 10.1097/BRS.0000000000001431

M3 - Comment/debate

C2 - 27015065

AN - SCOPUS:84962359421

SN - 0362-2436

VL - 41

SP - S24

JO - Spine

JF - Spine

IS - 7S

ER -