Hybrid versus total pedicle screw instrumentation in patients undergoing surgery for neuromuscular scoliosis: a comparative study with matched cohorts

J Bone Joint Surg Br. 2012 Oct;94(10):1393-8. doi: 10.1302/0301-620X.94B10.29383.

Abstract

We compared the clinical, radiological and quality-of-life outcomes between hybrid and total pedicle screw instrumentation in patients undergoing surgery for neuromuscular scoliosis. A matched comparison using prospectively collected data was undertaken. A total of 66 patients underwent posterior or anteroposterior correction and fusion with hybrid (n = 33, mean age at surgery 15.8 years (9.10 to 19.6)) or total pedicle screw instrumentation (n = 33, mean age 14.7 years (7.0 to 20.7)) with a minimum follow-up of two years. The major curve pre-operatively was a mean of 87° (SD 29, 25° to 141°) and 81° (SD 18, 47° to 116°) in the hybrid and total pedicle screw groups, respectively (p = 0.29) and at a minimum of two years it was 33° (SD 20; 2° to 87°) and 20° (SD 12; 1° to 55°), respectively (p = 0.0016). The mean correction of the major curve was 59% (41% to 88%) in the hybrid and 75% (43% to 99%) in the total pedicle screw groups at two-year follow-up (p = 0.0011). The mean operating time was 7.45 hours (SD 2.18) and 6.04 hours (SD 1.71) in the hybrid and total pedicle screw groups, respectively (p = 0.001), and the mean intra-operative blood loss was 3760 ml (SD 2790) and 1785 ml (SD 1110), respectively (p = 0.001). Total pedicle screw instrumentation provided shorter operating times, less blood loss and better correction of the major curve compared with hybrid constructs in patients undergoing surgery for neuromuscular scoliosis.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Bone Screws*
  • Child
  • Cohort Studies
  • Female
  • Humans
  • Male
  • Quality of Life
  • Radiography
  • Retrospective Studies
  • Scoliosis / diagnosis
  • Scoliosis / diagnostic imaging
  • Scoliosis / surgery*
  • Spinal Fusion / instrumentation*
  • Young Adult