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March 15, 2010 - - Issue 6
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Sudo, Hideki
Spine. 35(6):i, March 15, 2010.
doi: 10.1097/01.brs.0000369639.80362.54
Kim, Young; Kim, Tae-Won
Spine. 35(6):599-606, March 15, 2010.
doi: 10.1097/BRS.0b013e3181b6258a
Cancellous bone was assumed to be linearly elastic followed by nonlinearly plastic such as crushable foam behavior. By the implementation of the characteristic of nonlinear bone plasticity into finite element analysis, more accurate effects of pedicle screw fixation-nut loosening on lumbar interbody fusion could be investigated.
Deckelmann, Stephan; Schwyn, Ronald; Van der Pol, Bas; Windolf, Markus; Heini, Paul F.; Benneker, Lorin M.
Spine. 35(6):607-612, March 15, 2010.
doi: 10.1097/BRS.0b013e3181bc9470
Transpedicular instrumentation in the osteoporotic spine is a major challenge. We developed 2 intraoperative, transpedicular methods to measure bone strength. In biomechanical cadaver tests peak torque was superior to indentation force measurements in predicting pedicle screw instrumentation strength.
Cunningham, Bryan W.; Sefter, John C.; Hu, Nianbin; Kim, Seok Woo; Bridwell, Keith H.; McAfee, Paul C.
Spine. 35(6):E198-E205, March 15, 2010.
doi: 10.1097/BRS.0b013e3181c142bf
This study evaluates the effect of iliac screw fixation versus interbody femoral ring allograft on lumbosacral kinematics and sacral screw strain in long segment instrumentations. For instrumented fusions extending above L3, sacral screws should be protected with supplemental iliac screws or femoral ring allograft at L5–S1. Iliac fixation appears most effective.
Xie, Ning; Khoo, Larry T.; Yuan, Wen; Ye, Xiao-Jian; Chen, De-Yu; Xiao, Jian-Ru; Ni, Bin
Spine. 35(6):613-619, March 15, 2010.
doi: 10.1097/BRS.0b013e3181ba3368
A retrospective study was used to evaluate the treatment efficacy of combined anterior C2-C3 reduction and fusion and posterior compressive C2 pedicle screw fixation for the management of unstable hangman's fractures. The unstable hangman's fractures hold a large percentage of all hangman's fractures and indicated for surgeries. Anterior reduction and fusion is the preferred treatment to all the unstable hangman's fractures. Combined anterior C2-C3 reduction and fusion and posterior compressive C2 pedicle screw fixations can get better reduction and functional outcomes in some patients with severe unstable hangman's fractures.
Harrop, James S.; Naroji, Swetha; Maltenfort, Mitchell; Anderson, D. Greg; Albert, Todd; Ratliff, John K.; Ponnappan, Ravi K.; Rihn, Jeffery A.; Smith, Harvey E.; Hilibrand, Alan; Sharan, Ashwini D.; Vaccaro, Alexander
Spine. 35(6):620-624, March 15, 2010.
doi: 10.1097/BRS.0b013e3181b723af
In 103 patients with cervical degenerative disease, myelopathy was defined as greater than one long-tract sign on examination. No patients without cord compression showed myelopathy. Multivariate analysis on patients with cord compression indicates likelihood of myelopathy increased with the presence of cord signal hyperintensity, sensory loss, and patient age.
Kim, Kyeong Hwan; Lee, Sang-Ho; Shim, Chan Shik; Lee, Dong Yeob; Park, Hyeon Seon; Pan, Woei-Jack; Lee, Ho-Yeon
Spine. 35(6):625-634, March 15, 2010.
doi: 10.1097/BRS.0b013e3181bb8168
The authors analyzed patients who underwent interbody fusion and pedicle screw fixation for L4–L5 spondylolisthesis with a healthy adjacent segment and followed up for more than 5 years. Results showed that maintaining postoperative L4–L5 segmental lordotic angle at about 20° or more is important for prevention of clinical ASD.
Yee, Dennis K. H.; Samartzis, Dino; Wong, Yat-Wa; Luk, Keith D. K.; Cheung, Kenneth M. C.
Spine. 35(6):635-641, March 15, 2010.
doi: 10.1097/BRS.0b013e3181cff4f6
Infective spondylitis is commonly caused by either a pyogenic organism or tuberculosis. We described 91 cases of infective spondylitis in Southern Chinese. The relative prevalence of pyogenic and tuberculous spondylitis was compared together with the clinical, microbiological, and prognostic difference between the 2 types of infective agents. Pyogenic spondylitis was found to be more common than tuberculous spondylitis among patients hospitalized for infective spondylitis. The biologic and clinical profile between such infective spondylitis types differed.
Rohmiller, Michael T.; Akbarnia, Behrooz A.; Raiszadeh, Kian; Raiszadeh, Kamshad; Canale, Sarah
Spine. 35(6):642-646, March 15, 2010.
doi: 10.1097/BRS.0b013e3181b616eb
Twenty-eight consecutive postoperative wound infections following instrumented posterior spinal fusion were treated using incision and drainage and closed suction irrigation system. All infections resolved following 1 (n = 21) or 2 (n = 7) closed suction irrigation system treatments without implant removal. Closed suction irrigation system is an effective way to treat postoperative wound infections following instrumented spinal fusion.
Kanayama, Masahiro; Horio, Michiko; Umi, Yumi; Yamaguchi, Ai; Omata, Junichi; Togawa, Daisuke; Hashimoto, Tomoyuki
Spine. 35(6):647-651, March 15, 2010.
doi: 10.1097/BRS.0b013e3181ba29f9
A retrospective survey concerning sexual desire, activity, adjustment, and satisfaction was done for 64 patients who had surgically-treated lumbar disc herniation. Lumbar disc herniation largely impacted quality of sexual activities. Surgery improved sexualities, but more females did not regain sexual desire, felt discomfort, and resumed sexual activities later than males.
Lee, Chong-Suh; Chung, Sung Soo; Choi, Sung Woo; Yu, Jae Wook; Sohn, Min Su
Spine. 35(6):E206-E211, March 15, 2010.
doi: 10.1097/BRS.0b013e3181bfa518
No published criteria exist on the critical length of fusion requiring stronger fixation to the ilium or S2 to ensure adequate stability for union at the lumbosacral junction. The risk of nonunion at the lumbosacral junction was found to increase significantly for more than 3 levels fusion, and thus, additional stronger fixation is needed in such cases.
Wang, Chuanfeng; Xu, Weidong; He, Shisheng; Gu, Suxi; Zhao, Yingchuan; Zhang, Jingtao; Zhu, Xiaodong; Li, Ming
Spine. 35(6):652-656, March 15, 2010.
doi: 10.1097/BRS.0b013e3181b9fe3e
Many factors are capable of influencing health-related quality of life of adolescent idiopathic scoliosis patients. We found that residing in an urban versus rural environment does impact health-related quality of life. Clinicians must consider living environment when assessing health-related quality of life in adolescent idiopathic scoliosis patients to make the scores more objective and comparable.
Marshman, Laurence A. G.; Kasis, Ata; Krishna, Manoj; Bhatia, Chandra K.
Spine. 35(6):657-665, March 15, 2010.
doi: 10.1097/BRS.0b013e3181bb8ebd
The putative negative correlation between duration of symptoms and outcome after posterior lumbar interbody fusion for chronic low back pain was not observed across 7 outcome scores in our study. Symptom chronicity does not represent a poor prognostic indicator for chronic low back pain outcome after PLIF. PLIF should be considered irrespective of duration of symptoms.
Ko, Young-Mi; Park, Won-Beom; Lim, Jae-Young
Spine. 35(6):666-671, March 15, 2010.
doi: 10.1097/BRS.0b013e3181ba7a78
We developed a Korean version of Chronic Pain Coping Inventory-42 by performing a cross-cultural adaptation, and evaluated its reliability and validity in patients with chronic low back pain. Despite linguistic and cultural differences, this is overall a meaningful tool, and produces results sufficiently similar to a original form.
Danon-Hersch, Nadia; Samartzis, Dino; Wietlisbach, Vincent; Porchet, François; Vader, John-Paul
Spine. 35(6):672-683, March 15, 2010.
doi: 10.1097/BRS.0b013e3181b71a79
In this prospective, controlled study of surgery for patients with low back pain and/or sciatica, patients appropriately treated according to criteria developed by a multispecialty panel using the RAND method had a significantly higher improvement at 12 months than inappropriately treated patients. These findings suggest that application of appropriateness criteria can improve outcome.
El-Sayed, Abdulrahman M.; Hadley, Craig; Tessema, Fasil; Tegegn, Ayalew; Cowan, John A. Jr; Galea, Sandro
Spine. 35(6):684-689, March 15, 2010.
doi: 10.1097/BRS.0b013e3181b4926e
We assessed relations between depression, anxiety, and post-traumatic stress symptomologies and back pain (BP) and neck pain (NP) in southwest Ethiopia, a rural, developing context, where relations between psychopathology and BP and NP are poorly understood. Depression and anxiety symptomologies were associated with BP and NP, and post-traumatic stress was associated with BP.
Kurtz, Steven M.; Lau, Edmund; Ianuzzi, Allyson; Schmier, Jordana; Todd, Lanman; Isaza, Jorge; Albert, Todd J.
Spine. 35(6):690-696, March 15, 2010.
doi: 10.1097/BRS.0b013e3181d0fabb
We examined the Nationwide Inpatient Sample to identify primary and revision total disc replacement (TDR) and fusion procedures. TDR revision burden was higher than fusion but fell within the range of hip and knee replacement. Economically, the higher revision burden for TDRs was offset by lower costs relative to fusion.
Frennered, Karin; Hägg, Olle; Wessberg, Per
Spine. 35(6):697-703, March 15, 2010.
doi: 10.1097/BRS.0b013e3181b43a20
Computerized touch-screen questionnaires in back-patients compare well to paper-and-pen forms and eliminate the problem of missing data.
Ma, Xiang-Yang; Yin, Qing-Shui; Wu, Zeng-Hui; Xia, Hong; Riew, K. Daniel; Liu, Jing-Fa
Spine. 35(6):704-708, March 15, 2010.
doi: 10.1097/BRS.0b013e3181bb8831
A modified C2 translaminar screw fixation technique using bicortical screw fixation was developed and 120 adult axis specimens were measured to evaluate the applicability of this technique. Lamina thickness and spinous process height are the 2 limiting factors, but large percentages of C2 specimens are of sufficient size to safely accommodate a bicortical translaminar screw.
Berra, Luigi Valentino; Foti, Domenico; Ampollini, Antonella; Faraca, Giovanna; Zullo, Nicola; Musso, Corrado
Spine. 35(6):709-713, March 15, 2010.
doi: 10.1097/BRS.0b013e3181bac710
The most commonly used surgical techniques for the removal of far lateral lumbar disc herniations require partial or complete facet resection and/or intertransverse ligament resection. The authors present a modified technique for approaching the neural foramen from the contralateral side and analysis outcome of 9 patients who underwent the procedure.
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