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224 results on '"LIN, RUEY-MO"'

2. ProDisc–C versus anterior cervical discectomy and fusion for the surgical treatment of symptomatic cervical disc disease: two-year outcomes of Asian prospective randomized controlled multicentre study

Author

Kumar, Naresh, Liu, Zhong Jun, Poon, Wai Sang, Park, Chun-Kun, Lin, Ruey-Mo, Cho, Kyoung-Suok, Niu, Chi Chien, Chen, Hung Yi, Madhu, Sirisha, Shen, Liang, Sun, Yu, Mak, Wai Kit, Lin, Cheng Li, Lee, Sang-Bok, Park, Choon Keun, Lee, Dong Chan, Tung, Fu-I, and Wong, Hee-Kit

Published
2022
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28. Short-segment decompression and fixation for thoracolumbar osteoporotic fractures with neurological deficits

Author

Jing-Jing Fang, Po-Hsin Chou, Cheng Li Lin, Kuo-Yuan Huang, and Lin Ruey-Mo

Subjects
Male, Medicine (General), Clinical Research Reports, Decompression, medicine.medical_treatment, Kyphosis, Biochemistry, Fracture Fixation, Internal, 0302 clinical medicine, Back pain, Aged, 80 and over, aging population, 030222 orthopedics, Lumbar Vertebrae, Muscle Weakness, postural reduction, Laminectomy, General Medicine, Middle Aged, Decortication, musculoskeletal system, Oswestry Disability Index, Treatment Outcome, Spinal Fractures, Female, medicine.symptom, musculoskeletal diseases, medicine.medical_specialty, Visual analogue scale, Cauda Equina Syndrome, Thoracic Vertebrae, Hypesthesia, 03 medical and health sciences, Fixation (surgical), R5-920, medicine, Humans, neurological deficits, Aged, Retrospective Studies, Paraplegia, posterior surgery, business.industry, short-segment, Biochemistry (medical), Cell Biology, Perioperative, medicine.disease, Surgery, Vertebral osteoporotic fracture, Spinal Fusion, business, Osteoporotic Fractures, 030217 neurology & neurosurgery
Abstract

Objective We assessed our results of short-segment decompression and fixation for osteoporotic thoracolumbar fractures with neurological deficits. Methods We evaluated 20 elderly patients (age, 60–89 years; mean, 73.2 years) with osteoporotic thoracolumbar fractures and neurological deficits. They underwent short-segment decompression and fixation and followed up for 40.6 (range, 24–68) months. A visual analog scale (VAS) and the Oswestry Disability Index (ODI) were used to measure back pain and disability. We also analyzed patients’ radiologic findings and neurological status. Perioperative and postoperative complications were recorded. Results At the latest follow-up, the average VAS score for back pain and ODI scores had significantly improved. The radiologic assessment showed significant improvements in local kyphosis, anterior vertebral height, and the vertebral wedge angle compared with the original measures. Neurological function also improved in 18 of 20 patients. No major complications occurred perioperatively. Our techniques included preservation of the posterior ligament complex, decortication of facet joints for fusion, no tapping to increase the screw insertional torque, pre-contouring of the rods according to the “adaptive” curve obtained from postural reduction, and postoperative spinal bracing. Conclusions Posterior short-segment decompression and fixation could be an effective surgical option for osteoporotic thoracolumbar burst fractures with neurological deficits.

Published
2018
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30. FRONT MATTER

Author

Chen, Po-Quang, primary, Lin, Ruey-Mo, additional, and Tsai, Keh-Sung, additional

Published
2021
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31. BACK MATTER

Author

Chen, Po-Quang, primary, Lin, Ruey-Mo, additional, and Tsai, Keh-Sung, additional

Published
2021
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39. Biomechanical analysis of the lumbar spine on facet joint force and intradiscal pressure - a finite element study

Author

Huang Kuo-Yuan, Lin Ruey-Mo, Hu Hsuan-Teh, Kuo Ching-Sung, Lin Po-Chun, Zhong Zheng-Cheng, and Hseih Mu-Lin

Subjects
Diseases of the musculoskeletal system, RC925-935
Abstract

Abstract Background Finite element analysis results will show significant differences if the model used is performed under various material properties, geometries, loading modes or other conditions. This study adopted an FE model, taking into account the possible asymmetry inherently existing in the spine with respect to the sagittal plane, with a more geometrically realistic outline to analyze and compare the biomechanical behaviour of the lumbar spine with regard to the facet force and intradiscal pressure, which are associated with low back pain symptoms and other spinal disorders. Dealing carefully with the contact surfaces of the facet joints at various levels of the lumbar spine can potentially help us further ascertain physiological behaviour concerning the frictional effects of facet joints under separate loadings or the responses to the compressive loads in the discs. Methods A lumbar spine model was constructed from processes including smoothing the bony outline of each scan image, stacking the boundary lines into a smooth surface model, and subsequent further processing in order to conform with the purpose of effective finite element analysis performance. For simplicity, most spinal components were modelled as isotropic and linear materials with the exception of spinal ligaments (bilinear). The contact behaviour of the facet joints and changes of the intradiscal pressure with different postures were analyzed. Results The results revealed that asymmetric responses of the facet joint forces exist in various postures and that such effect is amplified with larger loadings. In axial rotation, the facet joint forces were relatively larger in the contralateral facet joints than in the ipsilateral ones at the same level. Although the effect of the preloads on facet joint forces was not apparent, intradiscal pressure did increase with preload, and its magnitude increased more markedly in flexion than in extension and axial rotation. Conclusions Disc pressures showed a significant increase with preload and changed more noticeably in flexion than in extension or in axial rotation. Compared with the applied preloads, the postures played a more important role, especially in axial rotation; the facet joint forces were increased in the contralateral facet joints as compared to the ipsilateral ones at the same level of the lumbar spine.

Published
2010
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