TITLE:
Clinical Application and Exploration on Steps Progressively Corrections and Gradual Shortening Combined with Total Spinal Osteotomy for Angular Kyphosis—Basic Research and Clinical Application
AUTHORS:
Ming Lu, Xiaoping Wang, Dongyun Ren, Huasong Ma
KEYWORDS:
Angular Kyphosis, Total Spinal Osteotomy, Biomechanical Analysis, Clinical Outcome
JOURNAL NAME:
Surgical Science,
Vol.7 No.1,
January
28,
2016
ABSTRACT: Introduction: This study is designed to explore the biomechanical principles
of posterior bilateral pedicle screw on steps progressively and tight closure on every step for severe angular kyphosis and the indication conditions and clinical
pathways of above new technique. Materials and Methods: A total of 90 patients have
severe angular kyphosis, 37 males and 53 females, with an average age of 47 years.
All patients were treated with posterior bilateral pedicle screw and step tight
closure for gradual shortening and orthopedic technology. Results: Average intraoperative
blood loss was 2089 ml. Average operation time was 326 minutes. Kyphotic angle changed
from 90.1° averagely preoperatively to 41.6° averagely postoperatively with an improvement
rate of 65%. The distance from C7 plumb line to posterior upper edge
of the S1 vertebral body was averagely 5.2 mm postoperatively, with a
correction rate of 73%. Neurological complications
occurred in 2 cases, accounting for 6%. Non-neurological complications occurred
in 2 cases, accounting for 6%. Anatomical parameters were significantly improved
postoperatively (P