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https://www.readbyqxmd.com/read/28343026/comparison-of-unilateral-versus-bilateral-pedicle-screw-fixation-at-the-level-of-fracture-using-posterior-short-segment-pedicle-instrumentation-in-the-treatment-of-severe-thoracolumbar-burst-fractures
#1
Chao Sun, Xinhui Liu, Jiwei Tian, Guoping Guan, Hailong Zhang
BACKGROUND: Thoracolumbar burst fractures (TBFs) are often followed by bilateral pedicle screw fixation(BPSF) at the level of fracture using posterior short-segment pedicle instrumentation (SSPI). There has been increasing support for unilateral pedicle screw fixation (UPSF) in an attempt to reduce complications and costs. The aim of this study was to compare the clinical and radiologic results of UPSF versus BPSF at the level of fracture using SSPI in the treatment of severe TBFs. METHODS: The records of 42 consecutive patients with severe TBFs who underwent SSPI were divided into 2 groups according to the number of screws in the fracture level, including 20 patients (five screws) in UPSF group and 22 patients(six screws) in BPSF...
March 22, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28342884/oral-cancer-reconstruction-using-the-supraclavicular-artery-island-flap-comparison-to-free-radial-forearm-flap
#2
Christian Welz, Martin Canis, Sabina Schwenk-Zieger, Jennifer L Spiegel, Bernhard G Weiß, Yiannis Pilavakis
PURPOSE: To evaluate whether the pedicled supraclavicular artery island flap (SCAIF) is a sufficient alternative to the fasciocutaneous radial forearm free flap (RFFF) for oral reconstruction in cancer surgery. PATIENTS AND METHODS: The authors designed and implemented a retrospective cohort study composed of all consecutive patients who underwent head and neck reconstruction after cancer surgery at their tertiary university hospital from 2013 to 2016. Demographics and peri- and postoperative information were recorded and statistically analyzed...
March 2, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28338574/rigid-occipitocervical-instrumented-fusion-for-atlantoaxial-instability-in-an-18-month-old-toddler-with-brachytelephalangic-chondrodysplasia-punctata-a-case-report
#3
Hiroki Oba, Jun Takahashi, Kyoko Takano, Yuji Inaba, Mitsuo Motobayashi, Gen Nishimura, Shugo Kuraishi, Masayuki Shimizu, Shota Ikegami, Toshimasa Futatsugi, Masashi Uehara, Tomoki Kosho, Hiroyuki Kato, Koki Uno
STUDY DESIGN: Case report OBJECTIVE.: We report here on an 18-month-old boy with brachytelephalangic chondrodysplasia punctata (BCDP), whose atlantoaxial instability was successfully managed with occipitocervical instrumented fusion (OCF) using screw and rod instrumentations. SUMMARY OF BACKGROUND DATA: Recently, there have been a number of reports on BCDP with early onset of cervical myelopathy. Surgical OCF is a vital intervention to salvage affected individuals from the life-threatening morbidity...
March 23, 2017: Spine
https://www.readbyqxmd.com/read/28338450/postoperative-quality-of-life-assessment-in-patients-with-spine-metastases-treated-with-long-segment-pedicle-screw-fixation
#4
Florian Bernard, Jean-Michel Lemée, Olivier Lucas, Philippe Menei
OBJECTIVE In recent decades, progress in the medical management of cancer has been significant, resulting in considerable extension of survival for patients with metastatic disease. This has, in turn, led to increased attention to the optimal surgical management of bone lesions, including metastases to the spine. In addition, there has been a shift in focus toward improving quality of life and reducing hospital stay for these patients, and many minimally invasive techniques have been introduced with the aim of reducing the morbidity associated with more traditional open approaches...
March 24, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28334445/double-gastroepiploic-vascularized-lymph-node-tranfers-to-middle-and-distal-limb-for-the-treatment-of-lymphedema
#5
Pedro Ciudad, Oscar J Manrique, Shivprasad Date, Mouchammed Agko, John Jaime Perez Coca, Wei-Ling Chang, Federico Lo Torto, Fabio Nicoli, Michelle Maruccia, Javier López Mendoza, Hung-Chi Chen
BACKGROUND: Vascularized lymph node (VLN) transfer for lymphedema treatment has shown promising results. Optimal donor and recipient sites remain a matter of debate. We describe the technique and outcomes of a laparoscopically harvested extended gastroepiploic VLN flap with two levels of inset. PATIENTS AND METHODS: Between 2014 and 2015, four-patients with upper limb breast cancer-related lymphedema and three-patients with lower limb pelvic cancer-related lymphedema who underwent VLN transfers were included...
March 23, 2017: Microsurgery
https://www.readbyqxmd.com/read/28334377/lrit3-differentially-affects-connectivity-and-synaptic-transmission-of-cones-to-on-and-off-bipolar-cells
#6
Marion Neuillé, Yan Cao, Romain Caplette, Debbie Guerrero-Given, Connon Thomas, Naomi Kamasawa, José-Alain Sahel, Christian P Hamel, Isabelle Audo, Serge Picaud, Kirill A Martemyanov, Christina Zeitz
Purpose: Mutations in LRIT3 lead to complete congenital stationary night blindness (cCSNB). Using a cCSNB mouse model lacking Lrit3 (nob6), we recently have shown that LRIT3 has a role in the correct localization of TRPM1 (transient receptor potential melastatin 1) to the dendritic tips of ON-bipolar cells (BCs), contacting both rod and cone photoreceptors. Furthermore, postsynaptic clustering of other mGluR6 cascade components is selectively eliminated at the dendritic tips of cone ON-BCs...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28334320/interbody-spacer-material-properties-and-design-conformity-for-reducing-subsidence-during-lumbar-interbody-fusion
#7
Lillian S Chatham, Vikas V Patel, Christopher M Yakacki, R Dana Carpenter
One major complication with lumbar spinal fusion surgery is subsidence, in which the interbody spacer penetrates the vertebral endplates. Towards reducing the risk of subsidence, the objective of this study was to investigate the effects of interbody spacer material and design on the stress in the lumbar spine after interbody fusion. A finite element model of the L4-L5 motion segment was developed from computed tomography images of a cadaveric lumbar spine. A spacer, pedicle screws, and posterior rods were incorporated into the model, and the system was loaded under axial compression...
March 23, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28331905/asymmetrical-pedicle-subtraction-osteotomy-for-progressive-kyphoscoliosis-caused-by-a-pediatric-chance-fracture-a-case-report
#8
Satoshi Suzuki, Nobuyuki Fujita, Tomohiro Hikata, Akio Iwanami, Ken Ishii, Masaya Nakamura, Morio Matsumoto, Kota Watanabe
BACKGROUND: Although most pediatric Chance fractures (PCFs) can be treated successfully with casting and bracing, some PCFs cause progressive spinal deformities requiring surgical treatment. There are only few reports of asymmetrical osteotomy for PCF-associated spinal deformities. CASE PRESENTATION: We here report a case of a 10-year-old girl who suffered an L2 Chance fracture from an asymmetrical flexion-distraction force, accompanied by abdominal injuries. She was treated conservatively with a soft brace...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28328641/a-formula-for-planning-and-predicting-postoperative-mammoplasty-results
#9
Mary G Smithson, Sherry S Collawn, Mina S Mousa, Carly M Bramel
PURPOSE: For women with macromastia, reduction mammoplasty is a safe and effective solution to increasing quality of life through alleviating pain and improving aesthetics. This study developed a way to combine a surgeon's view of breast measurement (volume) with a patient's view of breast measurement (distance between nipple and notch, inframammary fold, or midline) to provide patients with a better understanding of expected surgical outcomes after breast reduction with a medial superior pedicle...
March 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28328638/complications-after-reduction-mammaplasty-a-comparison-of-wise-pattern-inferior-pedicle-and-vertical-scar-superomedial-pedicle
#10
Adeyemi A Ogunleye, Ofelia Leroux, Norman Morrison, Aviva B Preminger
Reduction mammaplasty is a commonly-performed procedure among plastic surgeons. Although several methods exist, the Wise pattern/inferior pedicle (IP) technique is the most widely used. The vertical scar/superomedial pedicle (SP) technique has gained acceptance for its shorter scar and more durable projection results, but some hesitation remains with its use in larger volume reductions.The incidence of complications in 124 consecutively performed breast reductions (246 breasts) at a single institution using either the Wise pattern/IP technique or vertical scar/SP technique, as well as risk factors associated with them, was determined...
March 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28327138/accuracy-of-pedicle-screw-placement-in-patients-with-marfan-syndrome
#11
Jun Qiao, Feng Zhu, Leilei Xu, Zhen Liu, Xu Sun, Bangping Qian, Qing Jiang, Zezhang Zhu, Yong Qiu
BACKGROUND: There is no study concerning safety and accuracy of pedicle screw placement in Marfan syndrome. The objective of this study is to investigate accuracy and safety of pedicle screw placement in scoliosis associated with Marfan syndrome. METHODS: CT scanning was performed to analyze accuracy of pedicle screw placement. Pedicle perforations were classified as medial, lateral or anterior and categorized to four grades: ≤ 2 mm as Grade 1, 2.1-4.0 mm as Grade 2, 4...
March 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28326398/the-hemisoleus-rotational-flap-provides-a-novel-superior-autograft-reconstructive-option-for-the-treatment-of-chronic-extensor-mechanism-disruption
#12
Jean-Charles Auregan, James D Lin, Joseph M Lombardi, Eugene Jang, William Macaulay, Melvin P Rosenwasser
Chronic disruption of the extensor mechanism is a devastating problem after total knee arthroplasty. Quadriceps tendon ruptures occur at an estimated 0.1% prevalence in the setting of total knee arthroplasty. Complete tears of the quadriceps tendon generally have poor results and high rates of rerupture. We present a case of a quadriceps tendon rupture after total knee arthroplasty which reruptured after initial direct repair. The patient presented to us with a chronically retracted rerupture and was subsequently reconstructed successfully with a novel extended medial gastrocnemius-soleus-calcaneus local rotational pedicle flap...
June 2016: Arthroplasty Today
https://www.readbyqxmd.com/read/28325565/impact-of-the-method-and-success-of-pharyngeal-reconstruction-on-the-outcome-of-treating-laryngeal-and-hypopharyngeal-cancers-with-pharyngolaryngectomy-a-national-analysis
#13
S A R Nouraei, A Dias, H Kanona, D Vokes, P O'Flynn, P M Clarke, S E Middleton, A Darzi, P Aylin, N Jallali
BACKGROUND: Surgical treatment of cancers that arise from or invade the hypopharynx presents major reconstructive challenges. Reconstructive failure exposes the airway and neck vessels to digestive contents. METHODS: We performed a national N = near-all analysis of the administrative dataset to identify pharyngolaryngectomies in England between 2002 and 2012. Information about morbidity, pharyngeal closure method and post-operative complications was derived. RESULTS: There were 1589 predominantly male (78%) patients whose mean age at surgery was 62 years...
January 9, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28325428/complete-section-of-proper-palmar-digital-pedicles-correlation-between-arterial-patency-and-sensory-recovery
#14
G Pomares, F Dap, G Dautel
Wounds to proper palmar digital (PPD) pedicles are frequent surgical emergencies. A correlation between arterial patency and nerve regeneration, however, has never been demonstrated. Forty-seven patients presenting complete section of a PPD pedicle and having undergone surgical repair of both elements were followed-up at a minimum of one year postoperatively. Doppler ultrasound examination studied arterial patency as well as the degree of stenosis. Neurological examination determined the BMRC score and the existence of cold intolerance, symptomatic neuroma and neurogenic pain...
April 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28324328/interspinous-implants-to-treat-spinal-stenosis
#15
REVIEW
Raj J Gala, Glenn S Russo, Peter G Whang
PURPOSE OF REVIEW: Lumbar spinal stenosis has historically been treated with open decompressive surgery which is associated with significant morbidity and may give rise to various complications. Interspinous spacers (ISS) have been developed as a less invasive strategy which may serve to avoid many of these risks. The two current spacers that are FDA approved and commercially available are the Coflex and Superion devices. The goal is to review these two implants, their indications, and patient selection...
March 21, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28324215/surgical-treatment-of-osteoporotic-thoraco-lumbar-compressive-fractures-the-use-of-pedicle-screw-with-augmentation-pmma
#16
Massimo Girardo, P Cinnella, G Gargiulo, P Viglierchio, A Rava, S Aleotti
INTRODUCTION: The osteoporosis prevalence in population is age related. The aim of this single-center observational study was evaluate the middle- to long-term performance of cement (PMMA) augmented fenestrated pedicle screws in elderly patients with thoraco-lumbar compressive fractures by osteoporosis. MATERIALS AND METHODS: From 2011 to 2015 we treated 52 patients (20 males and 32 females) suffering from somatic osteoporotic fractures (T10-L2). The average age was 73...
March 21, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28323717/treatment-of-lumbar-split-fracture-dislocation-with-short-segment-or-long-segment-posterior-fixation-and-anterior-fusion
#17
Fei Chen, Yijun Kang, Haisheng Li, Guohua Lv, Chang Lu, Jing Li, Bing Wang, Weihua Chen, Zhehao Dai
STUDY DESIGN: Retrospective analysis of 16 patients. SUMMARY OF BACKGROUND DATA: The lumbar split fracture-dislocation is a rare but severe injury, which is type C1.2.1 fracture in the Association for the Study of Internal Fixation spine fracture classification. The axial compressive and torsional force shattered the vertebral body into 2 halves and displaced them rotationally. This kind of fracture is so highly unstable that the treatment is very challenging. PURPOSE: The purpose of this study was to report and compare on clinical outcome and complications of patients with lumbar split fracture-dislocation which had been treated either short-segment or long-segment posterior fixation and anterior fusion...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323715/the-safety-and-strength-of-a-novel-medial-partial-nonthreaded-pedicle-screw-a-cadaveric-and-biomechanical-investigation
#18
Mun Keong Kwan, Chris Yin Wei Chan, Lim Beng Saw, Shanmugam Rukmanikanthan, Lawrence G Lenke
STUDY DESIGN: Cadaveric and biomechanical study. OBJECTIVE: The aim of this study was to assess the safety and pullout strength of medial, partial nonthreaded thoracic pedicle screws compared with conventional screws. SUMMARY OF BACKGROUND DATA: The perforation rate of the pedicle screws has been reported as high as 41%. Nerve injury and irritation can result from the compression of malpositioned screw on neural structures. METHODS: Ten fresh cadavers were studied...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323708/fenestrated-screws-augmented-with-pmma-increase-the-pullout-strength-of-sacral-pedicle-screws
#19
Matthew Colman, Jonathan Pond, Kent Bachus, Brandon D Lawrence, William R Spiker, Darrel S Brodke
STUDY DESIGN: Biomechanics. OBJECTIVE: The objective of this study was to compare the fixation in osteoporotic specimens of a bicortical sacral pedicle screw to the following constructs: a unicortical solid screw augmented with polymethylmethacrylate (PMMA) (TRACT), a unicortical fenestrated screw augmented with PMMA (FEN), and a bicortical screw/sacral alar screw combination (PED/ALA). SUMMARY OF BACKGROUND DATA: Rigid posterior sacral fixation of osteoporotic spines is problematic due to poor bone quality...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323706/comparison-of-open-versus-percutaneous-pedicle-screw-fixation-using-the-sextant-system-in-the-treatment-of-traumatic-thoracolumbar-fractures
#20
Hongwei Wang, Yue Zhou, Changqing Li, Jun Liu, Liangbi Xiang
STUDY DESIGN: We retrospectively reviewed 100 patients who were posterior stabilized without graft fusion. Using the Sextant system, 22 patients underwent minimally invasive short-segment 4-pedicle screw fixation (MIF4) and 39 patients underwent minimally invasive short-segment combined with intermediate screws fixation, that is, 6-pedicle screw fixation (MIF6). The conventional open posterior short-segment 4-pedicle screw fixation (OPF4) technique was used in 39 patients. OBJECTIVE: To evaluate the feasibility, safety, and efficacy of percutaneous pedicle screw fixation using the Sextant system in the treatment of traumatic thoracolumbar fractures compared with the conventional open posterior short-segment pedicle screw fixation technique...
April 2017: Clinical Spine Surgery
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