Mechanisms of curve progression following sublaminar (Luque) spinal instrumentation

J. O. Sanders, M. Evert, E. A. Stanley, A. E. Sanders

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Fifty-two patients with Luque instrumentation were reviewed for spinal deformities. Forty-two patients were reviewed during 1 year (longest 7.2 years) at follow-up. Two patients were included who lost correction within 1 year (both 8 months). Follow up averaged 2.9 years. Curve causes primarily were neuromuscular but included one was caused by idiopathic scoliosis, four by Scheuermann's disease, and 1 by post-laminectomy kyphosis. The Cobb angle progressed in 45% of patients postoperatively. Factors contributing to progression included progressive vertebral rotation or the crankshaft phenomenon (11), wire pull out (7), progressive pelvic obliquity (4), rod bending (3), pseudarthrosis (2), and rod migration (2). Factors correlating with progression were kyphosis, postoperative curve > 35°, preoperative curve > 60°, and not fusing to the pelvis in nonambulators. Crankshaft was common in patients Risser II or less but did not occur in more mature patients.

Original languageEnglish (US)
Pages (from-to)781-789
Number of pages9
JournalSpine
Volume17
Issue number7
StatePublished - 1992

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Kyphosis
Scheuermann Disease
Pseudarthrosis
Laminectomy
Scoliosis
Pelvis

Keywords

  • kyphosis
  • loss of correction
  • Luque instrumentation
  • scoliosis

ASJC Scopus subject areas

  • Physiology
  • Clinical Neurology
  • Orthopedics and Sports Medicine

Cite this

Sanders, J. O., Evert, M., Stanley, E. A., & Sanders, A. E. (1992). Mechanisms of curve progression following sublaminar (Luque) spinal instrumentation. Spine, 17(7), 781-789.

Mechanisms of curve progression following sublaminar (Luque) spinal instrumentation. / Sanders, J. O.; Evert, M.; Stanley, E. A.; Sanders, A. E.

In: Spine, Vol. 17, No. 7, 1992, p. 781-789.

Research output: Contribution to journalArticle

Sanders, JO, Evert, M, Stanley, EA & Sanders, AE 1992, 'Mechanisms of curve progression following sublaminar (Luque) spinal instrumentation', Spine, vol. 17, no. 7, pp. 781-789.
Sanders JO, Evert M, Stanley EA, Sanders AE. Mechanisms of curve progression following sublaminar (Luque) spinal instrumentation. Spine. 1992;17(7):781-789.
Sanders, J. O. ; Evert, M. ; Stanley, E. A. ; Sanders, A. E. / Mechanisms of curve progression following sublaminar (Luque) spinal instrumentation. In: Spine. 1992 ; Vol. 17, No. 7. pp. 781-789.
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