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    Thoracic and lumbar curvature changes during pregnancy in full term primipara
    (Mahidol University. Mahidol University Library and Knowledge Center, 2024) Jirawan Chantopas; Pongsukdi Chaisilwattana; Roongtiwa Vachalathiti; Arunee Vajiraporntip
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    Thoracolumbar junction orientation: A novel guide for sagittal correction and proximal junctional kyphosis prediction in adult spinal deformity patients
    (2021-01-01) Hong Joo Moon; Keith H. Bridwell; Alekos A. Theologis; Micheal P. Kelly; Thamrong Lertudomphonwanit; Lawrence G. Lenke; Munish C. Gupta; Ramathibodi Hospital; Korea University College of Medicine; Columbia University Irving Medical Center; University of California, San Francisco; Washington University in St. Louis
    BACKGROUND: Novel radiographic sagittal parameters of the thoracolumbar junction orientation (TLJO, thoracolumbar slope [TLS] and thoracolumbar tilt [TLT]) have been introduced and correlated with lumbopelvic parameters and thoracic kyphosis.... OBJECTIVE: To determine a predictive model for reciprocal thoracic kyphosis and proximal junctional kyphosis (PJK) based on the TLJO. METHODS: A total of 127 patients who had fusion from sacrum to T10-L2 from 2004 to 2014 were reviewed. TK (T5-T12), PI, SS
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    Thoracolumbar junction orientation: its impact on thoracic kyphosis and sagittal alignment in both asymptomatic volunteers and symptomatic patients
    (2019-09-01) Hong Joo Moon; Keith H. Bridwell; Alekos A. Theologis; Micheal P. Kelly; Thamrong Lertudomphonwanit; Han Jo Kim; Lawrence G. Lenke; Munish C. Gupta; Korea University, College of Medicine; Columbia University Irving Medical Center; University of California, San Francisco; Hospital for Special Surgery - New York; Faculty of Medicine, Ramathibodi Hospital, Mahidol University; Washington University in St. Louis
    of the TLJ were measured using the midline of the T12–L1 disk space: The TLJ orientation [TLJO; thoracolumbar tilt (TLT) and slope (TLS)]. Thoracic kyphosis (TK; T5–12), C7–S1 sagittal vertical axis (SVA), lumbar lordosis (LL; L1–S1), sacral slope (SS
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    Operative Results of Adolescent Idiopathic Scoliosis Correction using Low-Density Instrumentation with 5-Year Follow-up
    (2019-01-01) C. Chotigavanichaya; K. Saisamorn; T. Ariyawatkul; M. Ruangchainikom; P. Luksanapruksa; S. Wilartratsami; A. Chotivichit; S. Thanapipatsiri; Faculty of Medicine, Siriraj Hospital, Mahidol University
    to 15.6+7.8° immediately post-operation, and significantly increased to 17.2+8.2° and to 18.5+8.7° at 2-years post-operation and 5-years post-operation, respectively. The major curve correction loss rate was 25.2%. In the normal thoracic kyphosis group... (range: 10° to 40°), the pre-operative thoracic kyphosis angle was 28.0+12.3°, which was non-significantly decreased to 24.1+9.1°, 25.8+8.1°, and 25.8+8.5° at immediately post-operation, at 2-years post-operation, and 5-years postoperation, respectively
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    Does Implant Density Impact Three-Dimensional Deformity Correction in Adolescent Idiopathic Scoliosis with Lenke 1 and 2 Curves Treated by Posterior Spinal Fusion without Ponte Osteotomies?
    (2022-06-01) Lertudomphonwanit T.; Berry C.A.; Jain V.V.; Sturm P.F.; Mahidol University
    , immediate, and final follow-up postoperative radiographs were analyzed. The correlation between PS density and the following factors were determined: major curve correction (MCC), correction index (CI; MCC/ curve flexibility), kyphosis angle change, and rib.... Results: The study included 99 patients with Lenke 1 and 23 patients with Lenke 2 AIS. The average MCC was 67.2%. There was no correlation between screw density and these parameters: MCC (r =0.10, p =0.26), CI (r =0.16, p =0.07), change in T2–T12 kyphosis
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    Mechanical complications and patient-reported outcome measures associated with high pelvic incidence and persistent pelvic retroversion: the Roussouly "false type 2" profile
    (2023-08-01) Lertudomphonwanit T.; Mahidol University
    , and thoracic kyphosis < 30°. Mechanical complications, defined as proximal junctional kyphosis (PJK) and/or instrumentation failure, were determined and compared. Scoliosis Research Society-22r (SRS-22r) scores were compared between groups. RESULTS: Ninety-five
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    Effect of cervical kyphotic deformity type on the motion characteristics and dynamic spinal cord compression
    (2014-05-20) Monchai Ruangchainikom; Michael D. Daubs; Akinobu Suzuki; Tetsuo Hayashi; Gil Weintraub; Christopher J. Lee; Hirokazu Inoue; Haijun Tian; Bayan Aghdasi; Trevor P. Scott; Kevin H. Phan; Areesak Chotivichit; Jeffrey C. Wang; University of California, Los Angeles; Mahidol University; University of Southern California
    positions. Cervical spines demonstrating kyphosis were included and classified into 3 groups: (1) "global kyphotic deformity" (C-type) (n = 54); (2) "sigmoid deformity" (S-type) with kyphotic upper and lordotic lower cervical segments (n = 29); and (3... with flexion and extension. RESULTS.: In the C-and R-types, angular motion with extension was increased in the upper cervical spine, where there was kyphosis; when compared with the S-type, in which there was lordosis in the upper segments. The results were
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    Cervical neurofibromatosis with quadriparesis: Management by fibular strut graft
    (2010-01-01) Wichien Laohacharoensombat; Wiwat Wajanavisit; Patarawan Woratanarat; Mahidol University
    This is a case report of an eight-year old boy with neurofibromatosis and a 120 dystrophic kyphosis of the cervical spine. He presented with progressive quadriparesis caused by spondyloptosis of the C2/C3, and was successfully treated by skull
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    Apical derotation in the treatment of idiopathic scoliosis.
    (2005-10-01) Wichien Laohacharoensombat; Suphaneewan Jaovisidha; Wiwat Wajanavisit; Sorasak Suppaphol; Mahidol University
    dimensions especially regarding the vertebral derotation and restoration of thoracic kyphosis.
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    Rod fracture in adult spinal deformity surgery fused to the sacrum: prevalence, risk factors, and impact on health-related quality of life in 526 patients
    (2018-09-01) Thamrong Lertudomphonwanit; Michael P. Kelly; Keith H. Bridwell; Lawrence G. Lenke; Steven J. McAnany; Prachya Punyarat; Timothy P. Bryan; Jacob M. Buchowski; Lukas P. Zebala; Brenda A. Sides; Karen Steger-May; Munish C. Gupta; Columbia University in the City of New York; Washington University School of Medicine in St. Louis; Faculty of Medicine, Ramathibodi Hospital, Mahidol University; Faculty of Medicine, Thammasat University; Washington University in St. Louis
    interval [95% CI] 1.02–1.14 per 1-cm increase), preoperative thoracolumbar kyphosis (HR 1.02, 95% CI 1.01–1.04 per 1-degree increase), and number of levels fused for patients who received rhBMP-2 <12 mg per level fused (HR 1.48, 95% CI 1.20–1.82 per 1-level... at final follow-up. Conclusions: The prevalence of all RF after index procedures was 18.4%, 37% for bilateral RF. Greater preoperative sagittal vertical axis, greater preoperative thoracolumbar kyphosis, increased number of vertebrae fused for patients who