[Modified posterior closing wedge osteotomy in patients of posttraumatic thoracic lumbar kyphosis].
OBJECTIVE
To evaluate the outcome of posterior trans-pedicle + disc osteotomy in patients with post-traumatic thoracolumbar kyphosis.


METHODS
Between June 2000 and June 2003, 26 adult patients, 16 male and 10 female, average 30.6 years old (21 - 42 y), of post-traumatic thoracolumbar kyphosis were corrected by means of single posterior trans-pedicle + disc osteotomy technique. Operation time, blood loss, and surgical complication were counted. Back pain Visual Analog Scale (VAS) Oswestry score and Frankel neurological grade were used to for clinical evaluation. All the radiographic and clinical data were requested at 3 time points (before operation, directly postoperatively, and at final follow-up).


RESULTS
No severe complications were found in this group. Local kyphosis (T(10)-L(2) Cobb angle) was corrected from average 22.3 degrees +/- 3.5 degrees to 2.2 degrees +/- 2.1 degrees (corrective rate 90.1%). Intraoperative average blood loss was (680.0 +/- 31.5) ml and average operational time was (186.0 +/- 22.8) min. All the patients finished at least 3 - 5 years follow-up, Neural improvement achieved in this group (before operation Frankel D 12 cases, Frankel C 6 cases and Frankel B2 cases; 3 years postoperation Frankel E 14 cases, Frankel D 2 cases Frankel C1 case and Frankel B 1 case), postoperative back pain was reduced from preoperative 8.6 +/- 1.3 to 2.2 +/- 0.5 in VAS and Oswestry score improved from (62.5 +/- 8.6)% to (16.2 +/- 4.3)% at last follow up.


CONCLUSIONS
Single posterior trans-pedicle + disc osteotomy technique is suitable to thoracolumbar post-traumatic kyphosis.
Zhang
Xue-song
XS
Department of Orthopaedics, General Hospital of the People's Liberation Army, Beijing 100853, China.
Wang
Yan
Y
Zhang
Yong-gang
YG
Xiao
Song-hua
SH
Wang
Zheng
Z
Mao
Ke-ya
KY
Lu
Ning
N
Cui
Geng
G
D000328:Adult; D005260:Female; D006801:Humans; D007738:Kyphosis / Q000209:etiology / Q000601:surgery*; D008159:Lumbar Vertebrae / Q000293:injuries; D008297:Male; D010027:Osteotomy / Q000379:methods*; D016103:Spinal Fractures / Q000150:complications*; D013904:Thoracic Vertebrae / Q000293:injuries; D016896:Treatment Outcome; D055815:Young Adult