TY - JOUR
T1 - Changes in spino-pelvic alignment after surgical treatment of high- grade isthmic spondylolisthesis by a posterior approach
T2 - A report of 41 cases
AU - Faldini, Cesare
AU - Martino, Alberto Di
AU - Perna, Fabrizio
AU - Martikos, Kostantinos
AU - Greggi, Tiziana
AU - Giannini, Sandro
PY - 2014/11/1
Y1 - 2014/11/1
N2 - Purpose To analyze changes in spino-pelvic parameters (SPPs) after surgery of high-grade lumbar isthmic spondylolisthesis (HDIS).Methods We analyzed 41 patients affected by HDIS operated upon by attempt of reduction and posterior spinal fusion with pedicle screw systems with or without interbody fusion. Pelvic tilt (PT), lumbar lordosis (LL), pelvic incidence (PI), and sacral slope (SS) were measured, and patients were further divided into balanced and unbalanced pelvis subgroups.Results SS passed from 46.8° ± 9.8° preoperatively to 50.1° ± 10.1° (p = 0.02). PT passed from 26.7° ± 6.7° preoperatively to 22.9° ± 7.5° (p = 0.003). Unbalanced patients showed significantly higher PT and lower SS compared to the balanced patients preoperatively, and these corrected after surgery. Patients with instrumentation failure (n = 5) had significant increase in PT values postoperatively (p = 0.018).Conclusions We confirmed the positive effect of surgery on the SPPs in patients affected by HDIS, which showed different patterns of corrections with surgery for balanced and unbalanced pelvis patients.
AB - Purpose To analyze changes in spino-pelvic parameters (SPPs) after surgery of high-grade lumbar isthmic spondylolisthesis (HDIS).Methods We analyzed 41 patients affected by HDIS operated upon by attempt of reduction and posterior spinal fusion with pedicle screw systems with or without interbody fusion. Pelvic tilt (PT), lumbar lordosis (LL), pelvic incidence (PI), and sacral slope (SS) were measured, and patients were further divided into balanced and unbalanced pelvis subgroups.Results SS passed from 46.8° ± 9.8° preoperatively to 50.1° ± 10.1° (p = 0.02). PT passed from 26.7° ± 6.7° preoperatively to 22.9° ± 7.5° (p = 0.003). Unbalanced patients showed significantly higher PT and lower SS compared to the balanced patients preoperatively, and these corrected after surgery. Patients with instrumentation failure (n = 5) had significant increase in PT values postoperatively (p = 0.018).Conclusions We confirmed the positive effect of surgery on the SPPs in patients affected by HDIS, which showed different patterns of corrections with surgery for balanced and unbalanced pelvis patients.
KW - High degree spondylolisthesis
KW - Posterior fusion
KW - Reduction
KW - Sagittal balance
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U2 - 10.1007/s00586-014-3552-z
DO - 10.1007/s00586-014-3552-z
M3 - Article
C2 - 25217240
AN - SCOPUS:84914109256
VL - 23
SP - S714-S719
JO - European Spine Journal
JF - European Spine Journal
SN - 0940-6719
ER -