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Orthopaedic Surgery

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https://www.readbyqxmd.com/read/28960822/analysis-of-spino-pelvic-sagittal-alignment-in-young-chinese-patients-with-lumbar-disc-herniation
#1
Han Fei, Wei-Shi Li, Zhuo-Ran Sun, Qing-Wei Ma, Zhong-Qiang Chen
OBJECTIVE: Few studies have concentrated on the sagittal alignment of lumbar disc herniation (LDH), especially the parameters of the pelvis, and controversy exists about whether pelvic morphology is involved in the pathogenesis of LDH. The present study analyzed the characteristics of the sagittal alignment in young Chinese LDH patients and explored the impact of pelvic morphology on the pathogenesis of LDH. METHODS: A retrospective analysis was conducted on 100 young patients with LDH (69 men and 31 women, aged 18-35 years), and the clinical and imaging findings met the criteria for the diagnosis of LDH...
August 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28960821/multicenter-study-on-observation-of-acute-phase-responses-after-infusion-of-zoledronic-acid-5%C3%A2-mg-in-chinese-women-with-postmenopausal-osteoporosis
#2
Yue Ding, Jian-Cheng Zeng, Fei Yin, Chun-Lin Zhang, Yan Zhang, Shi-Xun Li, Xun Liu, Chao Zhang, Qing-Yun Xue, Hua Lin, Fu-Xing Pei
OBJECTIVE: It has been reported that acute-phase reactions (APR) after infusion of 5 mg zoledronic acid for the first time is common. This study surveyed the incidence and characteristics of APR in Chinese postmenopausal women receiving 5 mg zoledronic acid intravenously for osteoporosis and to evaluate the efficacy of non-steroidal anti-inflammatory drugs (NSAID) in preventing or alleviating APR following the first 5 mg zoledronic acid infusion. METHODS: A total of 2601 patients with an average age of 68...
August 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28960820/minimally-invasive-transforaminal-lumbar-interbody-fusion-and-unilateral-fixation-for-degenerative-lumbar-disease
#3
Hui-Wang Wang, Yong-Cheng Hu, Zhan-Yong Wu, Hua-Rong Wu, Chun-Fu Wu, Lian-Suo Zhang, Wei-Kun Xu, Hui-Long Fan, Jin-Sheng Cai, Jian-Qing Ma
OBJECTIVE: To evaluate the clinical effect of the minimally invasive transforaminal lumbar interbody fusion combined with posterolateral fusion and unilateral fixation using a tubular retractor in the management of degenerative lumbar disease. METHODS: A retrospective analysis was conducted to analyze the clinical outcome of 58 degenerative lumbar disease patients who were treated with minimally invasive transforaminal lumbar interbody fusion combined with posterolateral fusion and unilateral fixation during December 2012 to January 2015...
August 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28960819/circumferential-reconstruction-of-subaxial-cervical-and-cervicothoracic-spine-by-simultaneously-combined-anterior-posterior-approaches-in-the-sitting-position
#4
Yue Han, Xin-Long Ma, Yong-Cheng Hu, Jun Miao, Ji-Dong Zhang, Jian-Qiang Bai, Qun Xia
OBJECTIVE: To introduce and analyze the feasibility of a new surgical strategy for circumferential reconstruction of subaxial cervical and cervicothoracic spine by simultaneously combined anterior-posterior approach in the sitting position. METHODS: A retrospective review was performed for seven patients who underwent the above surgical procedure between July 2011 and January 2015. Among the seven patients, there were six men and one woman, with an average age of 52 years (range, 36-79 years)...
August 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28960818/biomechanical-stability-analysis-of-a-stand-alone-cage-static-and-rotational-dynamic-plate-in-a-two-level-cervical-fusion-construct
#5
Parmenion P Tsitsopoulos, Leonard I Voronov, Michael R Zindrick, Gerard Carandang, Robert M Havey, Alexander J Ghanayem, Avinash G Patwardhan
OBJECTIVE: To test the following hypotheses: (i) anterior cervical discetomy and fusion (ACDF) using stand-alone interbody spacers will significantly reduce the range of motion from intact spine; and (ii) the use of a static or a rotational-dynamic plate will significantly augment the stability of stand-alone interbody spacers, with similar beneficial effect when compared to each other. METHODS: Eleven human cadaveric subaxial cervical spines (age: 48.2 ± 5.4 years) were tested under the following sequence: (i) intact spine; (ii) ACDF at C4 -C5 using a stand-alone interbody spacer; (iii) ACDF at C5 -C6 and insertion of an interbody spacer (two-level construct); and (iv) randomized placement of either a two-level locking static plate or a rotational-dynamic plate...
August 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28960817/in-vivo-study-on-the-corrosion-behavior-of-magnesium-alloy-surface-treated-with-micro-arc-oxidation-and-hydrothermal-deposition
#6
Chuan-Yi Bai, Jian-Wu Li, Wan-Bao Ta, Bo Li, Yong Han
OBJECTIVE: To study the corrosion behavior of magnesium alloy surface treated with micro-arc oxidation and hydrothermal deposition in living animals. METHODS: A magnesium oxide (MgO) layer was prepared on Mg alloy using micro-arc oxidation technology, and then a composite coating composed of magnesium hydroxide, hydroxyapatite, and MgO was coated on the MgO layer using the hydrothermal deposition method for 2 h and 24 h. Male 3-month-old white New Zealand rabbits (n = 48) weighting 2200-2300 g, were divided into four groups randomly...
August 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28960816/optimal-pelvic-incidence-minus-lumbar-lordosis-mismatch-after-long-posterior-instrumentation-and-fusion-for-adult-degenerative-scoliosis
#7
Hao-Cong Zhang, Zi-Fang Zhang, Zhao-Han Wang, Jun-Yao Cheng, Yun-Chang Wu, Yi-Ming Fan, Tian-Hao Wang, Zheng Wang
OBJECTIVE: To evaluate the influence of Scoliosis Research Society (SRS)-Schwab sagittal modifiers of pelvic incidence minus lumbar lordosis mismatch (PI-LL) on clinical outcomes for adult degenerative scoliosis (ADS) after long posterior instrumentation and fusion. METHODS: This was a single-institute, retrospective study. From 2012 to 2014, 44 patients with ADS who underwent posterior instrumentation and fusion treatment were reviewed. Radiological evaluations were investigated by standing whole spine (posteroanterior and lateral views) X-ray and all radiological measurements, including Cobb's angle, LL, PI, and the grading of vertebral rotation, were performed by two experienced surgeons who were blind to the operations...
August 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28960815/effect-of-asymmetric-tension-on-biomechanics-and-metabolism-of-vertebral-epiphyseal-plate-in-a-rodent-model-of-scoliosis
#8
Qian-Yi Li, Gui-Bin Zhong, Zu-de Liu, Li-Feng Lao
OBJECTIVE: To investigate the effect of asymmetric tension on idiopathic scoliosis (IS) and to understand its pathogenic mechanism. METHODS: The rodent model of scoliosis was established using Sprague-Dawley rats with left rib-tethering from T6 to T12 , tail and shoulder amputation, and high-cage feeding. Vertebrae epiphyseal cartilage plates were harvested from the convex and concave sides. To analyze differences on the convex and concave sides, finite element analysis was carried out to determine the mechanical stress...
August 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28589635/comparison-of-intramedullary-nail-versus-conventional-ilizarov-method-for-lower-limb-lengthening-a-systematic-review-and-meta-analysis
#9
REVIEW
Wei-Guo Xu
The objective of this systematic review and meta-analysis was to compare the lengthening and then nailing (LATN) technique to the conventional Ilizarov method for limb lengthening. A systemic search of potential relevant literature was performed in databases, including the Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, EMBASE, and the ISI Web of Knowledge, from their inception to 22 May 2015 using medical subject heading (MeSH) terms "Ilizarov," "bone lengthening," or "intramedullary nail...
June 7, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28560770/a-radiographic-measurement-of-the-anterior-epidural-space-at-l4-5-disc-level
#10
Rui-Sheng Xu, Jie-Shi Wu, Hai-Dan Lu, Hao-Gang Zhu, Xia Li, Jian Dong, Feng-Lai Yuan
To observe the morphology character of the anterior epidural space at the L4-5 disc level and to provide an anatomical basis for safely and accurately performing a percutaneous endoscopic lumbar discectomy (PELD). Fifty-five cases with L5 S1 lumbar disc herniation were included in this study, and cases with L4-5 disease were excluded. When the puncture needle reached the epidural space at the L5 S1 level, iohexol was injected at the pressure of 50 cm H2 O during the PELD, then C-Arm fluoroscopy was used to obtain standard lumbar frontal and lateral images...
May 30, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28547809/treatment-of-lumbar-spinal-stenosis-by-microscopic-unilateral-laminectomy-for-bilateral-decompression-a-technical-note
#11
Kevin Phan, Ian Teng, Konrad Schultz, Ralph J Mobbs
Lumbar spinal stenosis is typically a degenerative condition that leads to compression of the spinal canal and lateral recess, resulting in leg pain and walking disability. Surgical management is indicated after failure of non-surgical management or rapidly worsening neurological impairment. The traditional approach is a laminectomy with foraminotomy and partial facetectomy but a newer minimally invasive option, unilateral laminectomy for bilateral decompression (ULBD), seems to demonstrate the better postoperative outcomes due to its unilateral exposure...
May 26, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28544495/posterior-lumbar-interbody-fusion-with-interspinous-fastener-provides-comparable-clinical-outcome-and-fusion-rate-to-pedicle-screws
#12
Wei-Min Huang, Xing-Ming Yu, Xiao-Duo Xu, Ruo-Xian Song, Li-Li Yu, Xiu-Chun Yu
OBJECTIVE: To investigate the clinical feasibility and validity of interspinous fastener (ISF) for lumbar degenerative diseases. METHODS: From October 2013 to March 2014, a total of 46 patients suffering from lumbar degenerative diseases underwent posterior lumbar interbody fusion (PLIF) randomly augmented by ISF or pedicle screws. The clinical outcome was primarily measured by Oswestry Disability Index (ODI) score. The minimal clinical important difference (MCID) was defined as an eight-point decrease in ODI...
May 24, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28644557/selective-arterial-embolization-for-the-treatment-of-sacral-and-pelvic-giant-cell-tumor-a-systematic-review
#13
REVIEW
Shao-Hui He, Wei Xu, Zheng-Wang Sun, Wei-Bo Liu, Yu-Jie Liu, Hai-Feng Wei, Jian-Ru Xiao
Giant cell tumor of the bone (GCTB) is a locally aggressive tumor with a certain distant metastatic rate. For sacral GCT (SGCT) and pelvic GCT (PGCT), surgery has its limitations, especially for unresectable or recurrent tumors. Selective arterial embolization (SAE) is reported to be an option for treatment in several cases, but there are few systematic reviews on the effects of SAE on SGCT and/or PGCT. Medline and Embase databases were searched for eligible English articles. Inclusion and exclusion criteria were conducted before searching...
May 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28616883/treatment-for-thoracic-ossification-of-posterior-longitudinal-ligament-with-posterior-circumferential-decompression
#14
Zhao-Wan Xu, Yong-Cheng Hu, Chui-Guo Sun, Xiao-Peng Shang, Deng-Xing Lun, Feng Li, Xu-Bin Ji, Da-Yong Liu, Nai-Wang Chen, Qing-Shan Zhuang
OBJECTIVE: To report the results of the posterior approach for thoracic ossification of posterior longitudinal ligament (TOPLL) by using a special "L" osteotome. METHODS: The present study enrolled 16 consecutive patients (9 men and 7 women) between May 2009 and September 2013. All patients underwent a posterior circumferential decompression osteotomy and segmental instrumentation with interbody fusion. The mean age at surgery was 57.3 years (range, 37-68 years)...
May 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28598582/outcomes-of-intercalary-prosthetic-reconstruction-for-pathological-diaphyseal-femoral-fractures-secondary-to-metastatic-tumors
#15
Hong-Chao Huang, Yong-Cheng Hu, Deng-Xing Lun, Jun Miao, Feng Wang, Xiong-Gang Yang, Xin-Long Ma
OBJECTIVE: To evaluate the clinical outcomes and complications of segmental prosthetic reconstruction for pathological diaphyseal femoral fractures secondary to metastatic tumors. METHODS: Between 2011 and 2015, we retrospectively evaluated 16 patients (6 men and 10 women; 64.5 ± 11.4 years old at diagnosis) who underwent prosthetic reconstruction after segmental resection of diaphyseal femoral fractures due to metastatic lesions. Visual analog scale (VAS), functional outcomes, implant-related complications, and Mean postoperative Musculoskeletal Tumor Society (MSTS) score for each patient were collected...
May 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28598560/effects-of-unilateral-tourniquet-used-in-patients-undergoing-simultaneous-bilateral-total-knee-arthroplasty
#16
Pei-Lai Liu, De-Qiang Li, Yuan-Kai Zhang, Qun-Shan Lu, Liang Ma, Xue-Zhi Bao, Meng Zhang
OBJECTIVE: To assess the benefits of use of a tourniquet in one limb in patients undergoing simultaneous bilateral total knee arthroplasty (TKA). METHODS: A prospective randomized trial was designed to evaluate the outcomes of unilateral tourniquet use during simultaneous bilateral TKA. A total of 52 (36 women and 16 men) patients with osteoarthritis who underwent simultaneous bilateral primary TKA between January 2010 and January 2015 were assigned randomly to tourniquet (TG) or non-tourniquet (NG) groups prior to surgery...
May 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28598001/3d-printing-technology-in-planning-thumb-reconstructions-with-second-toe-transplant
#17
Cheng-Wu Zang, Jian-Lei Zhang, Ze-Zu Meng, Lin-Feng Liu, Wen-Zhi Zhang, Yong-Xiang Chen, Rui Cong
OBJECTIVE: To report preoperative planning using 3D printing to plan thumb reconstructions with second toe transplant. METHODS: Between December 2013 and October 2015, the thumbs of five patients with grade 3 thumb defects were reconstructed using a wrap-around flap and second toe transplant aided by 3D printing technology. CT scans of hands and feet were analyzed using Boholo surgical simulator software (www.boholo.com). This allowed for the creation of a mirror image of the healthy thumb using the uninjured thumb...
May 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28589561/computer-assisted-orthopaedic-surgery
#18
REVIEW
David Hernandez, Roja Garimella, Adam E M Eltorai, Alan H Daniels
Nowadays, operating rooms can be inefficient and overcrowded. Patient data and images are at times not well integrated and displayed in a timely fashion. This lack of coordination may cause further reductions in efficiency, jeopardize patient safety, and increase costs. Fortunately, technology has much to offer the surgical disciplines and the ongoing and recent operating room innovations have advanced preoperative planning and surgical procedures by providing visual, navigational, and mechanical computerized assistance...
May 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28560796/postoperative-evaluation-of-reduction-loss-in-proximal-humeral-fractures-a-comparison-of-plain-radiographs-and-computed-tomography
#19
Xiao-Yang Jia, Yan-Xi Chen, Min-Fei Qiang, Kun Zhang, Hao-Bo Li, Yu-Chen Jiang, Yi-Jie Zhang
OBJECTIVE: To compare postoperative CT images with plain radiographs for measuring prognostic factors of reduction loss of fractures of the proximal part of the humerus. METHODS: A total of 65 patients who sustained fractures of the proximal humerus treated with locking plates from June 2012 to October 2015 were retrospectively analyzed. There were 24 men and 41 women, with a mean age of 60.0 years (range, 22-76 years). According to the Neer classification system of proximal humeral fracture, there were 26 two-part, 27 three-part and 12 four-part fractures of the proximal part of the humerus, and all fractures were treated with open reduction and internal fixation (ORIF) using locked plating...
May 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28557297/correlation-of-cup-inclination-angle-with-liner-wear-for-metal-on-polyethylene-in-hip-primary-arthroplasty
#20
Jia-Liang Tian, Li Sun, Rui-Yin Hu, Wei Han, Xiao-Bin Tian
OBJECTIVES: The relationship between cup inclination angle and liner wear is controversial. Most authors in the published literature agree that the ideal cup inclination is associated with lower inner wear; however, some disagree. All previous studies did not control for femoral head diameter and inclination, so it is difficult to assess the relative or synergistic effects of cup angle on outcomes. METHODS: We retrospectively reviewed 154 patients (171 hips) with primary total hip arthroplasties performed from 2001 to 2004...
May 2017: Orthopaedic Surgery
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