{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,26]],"date-time":"2026-04-26T23:51:47Z","timestamp":1777247507296,"version":"3.51.4"},"reference-count":12,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["SPI"],"published-print":{"date-parts":[[2015,7]]},"abstract":"<jats:sec>\n<jats:title>OBJECT<\/jats:title>\n<jats:p>The purpose of this study was to determine the efficacy of a modified vertebral column resection for the treatment of thoracolumbar angular kyphosis.<\/jats:p><\/jats:sec>\n<jats:sec>\n<jats:title>METHODS<\/jats:title>\n<jats:p>A total of 13 patients (8 male, 5 female) with thoracolumbar kyphosis (kyphotic angle &gt; 60\u00b0) were included in this study (Group A). There were 3 patients with failure of spinal formation (Type 1 deformity), 6 patients with old thoracic or lumbar compression fracture, and 4 patients with old spinal tuberculosis (including 1 case of T3\u20135 vertebral malunion). The average preoperative kyphotic angle was 67.3\u00b0 (range 62\u00b0\u201375\u00b0). Each patient underwent an expanded eggshell procedure combined with the closing-opening technique for the treatment of thoracolumbar angular kyphosis. Sixteen patients who were previously treated with a closing-opening wedge osteotomy in the same spine classification group (kyphotic angle &gt; 60\u00b0) were used as a control group (Group B).<\/jats:p><\/jats:sec>\n<jats:sec>\n<jats:title>RESULTS<\/jats:title>\n<jats:p>In Group A, the average (\u00b1 SD) operative time was 400 \u00b1 60 minutes, and the average blood loss was 960 \u00b1 120 ml. There were no surgery-related complications observed during or after the operations. The average local kyphotic angle was 20.3\u00b0 (range 18\u00b0\u201324.5\u00b0), and the average correction rate was 68.7%. In Group B, the average operative time was 470 \u00b1 90 minutes, and the average blood loss was 2600 \u00b1 1600 ml (range 1200\u20138200 ml). There were segmental vessels and spinal canal venous plexus injury in 1 case, spinal cord injury in 1 case, dural tearing in 2 cases, pleural rupture in 2 cases, and hemothorax and pneumothorax in 1 case. Each patient had more than 2 years of follow-up. At the latest follow-up examination, the average regional kyphotic angle was 19.9\u00b0 \u00b1 9.1\u00b0 (range 19\u00b0\u201334\u00b0), and there was no significant loss of correction (p &gt; 0.05). There was greater blood loss and a higher complication rate in Group B than in Group A (p &lt; 0.05).<\/jats:p><\/jats:sec>\n<jats:sec>\n<jats:title>CONCLUSIONS<\/jats:title>\n<jats:p>An expanded eggshell procedure combined with the closing-opening technique for the treatment of thoracolumbar angular kyphosis resulted in significant reduction of the kyphotic angle, few complications, and good follow-up results. However, a larger series of patients and long-term follow-up results is still required to verify the effectiveness and safety of this method.<\/jats:p><\/jats:sec>","DOI":"10.3171\/2014.11.spine14710","type":"journal-article","created":{"date-parts":[[2015,4,24]],"date-time":"2015-04-24T14:12:18Z","timestamp":1429884738000},"page":"42-48","source":"Crossref","is-referenced-by-count":18,"title":["Expanded eggshell procedure combined with closing-opening technique (a modified vertebral column resection) for the treatment of thoracic and thoracolumbar angular kyphosis"],"prefix":"10.3171","volume":"23","author":[{"given":"Xinyu","family":"Liu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Suomao","family":"Yuan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yonghao","family":"Tian","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lianlei","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yanping","family":"Zheng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jianmin","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"issue":"Suppl 2","key":"b1-spine14710","series-title":"Eur Spine 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