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https://www.readbyqxmd.com/read/28434176/persistent-and-recurrent-hyperparathyroidism
#1
REVIEW
Carole Guerin, Nunzia Cinzia Paladino, Aoife Lowery, Fréderic Castinetti, David Taieb, Fréderic Sebag
Despite remarkable progress in imaging modalities and surgical management, persistence or recurrence of primary hyperparathyroidism (PHPT) still occurs in 2.5-5% of cases of PHPT. The aim of this review is to expose the management of persistent and recurrent hyperparathyroidism. A literature search was performed on MEDLINE using the search terms "recurrent" or "persistent" and "hyperparathyroidism" within the past 10 years. We also searched the reference lists of articles identified by this search strategy and selected those we judged relevant...
April 22, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28428919/tibial-bone-grafting-for-wrist-reconstruction
#2
Schneider K Rancy, Stephanie D Malliaris, Scott W Wolfe
Background Iliac crest bone graft harvesting is routinely performed for upper extremity orthopedic procedures despite high complication rates associated with sensory nerve injury, hematoma, chronic pain, and fracture. Description of Technique Cancellous bone graft is harvested from the proximal tibia using a medial approach, minimizing donor site morbidity. Patients and Methods A retrospective review was undertaken of 14 patients who underwent cancellous proximal tibia bone graft harvesting to augment healing of wrist reconstruction, with 2 months minimum follow-up...
May 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28426158/a-novel-technique-for-decellularization-of-allogenic-nerves-and-in-vivo-study-of-their-use-for-peripheral-nerve-reconstruction
#3
F Boriani, N Fazio, C Fotia, L Savarino, N Nicoli Aldini, L Martini, N Zini, M Bernardini, N Baldini
Autografts represent the gold standard for peripheral nerve reconstruction but their limited availability, the discrepancy of nerve caliber and long surgical times are drawbacks. Allografts have therefore become a valid alternative option. In particular, acellular nerve allografts (ANAs) rather than fresh allografts do not need immunosuppression and appear to be safe and effective based on recent studies. An innovative method was conceived to obtain ANAs, so as to speed up nerve decellularization, without compromising nerve architecture, and without breaking the asepsis chain...
April 20, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28416826/-surgical-technique-and-early-clinical-outcomes-of-direct-anterior-approach-to-total-hip-arthroplasty
#4
M Lv, J Q Zhang, X S Wang, Y Huang, W Li, C Y Zhang
OBJECTIVE: To describe the surgical technique of direct anterior approach to total hip arthroplasty and to report the early clinical outcomes. METHODS: A series of 100 consecutive, unselected patients who had 116 primary total hip arthroplasty surgeries (16 bilateral) done through direct anterior approach from March 11 2015 to June 21 2016 was reviewed. There were 50 male patients and 50 female patients. The average patient age was 51 years, and the average body mass index was 24...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28412554/prompt-peripheral-nerve-regeneration-induced-by-a-hierarchically-aligned-fibrin-nanofiber-hydrogel
#5
Jinrong Du, Jianheng Liu, Shenglian Yao, Haiquan Mao, Jiang Peng, Xun Sun, Zheng Cao, Yongdong Yang, Bo Xiao, Yiguo Wang, Peifu Tang, Xiumei Wang
Fibrin plays a crucial role in peripheral nerve regeneration, which could occur spontaneously in the format of longitudinally oriented fibrin cables during the initial stage of nerve regeneration. This fibrin cable can direct migration and proliferation of Schwann cells and axonal regrowth, which is very important to nerve regeneration. In the present study, we prepared a three-dimensional hierarchically aligned fibrin nanofiber hydrogel (AFG) through electrospinning and molecular self-assembly to resemble the architecture and biological function of the native fibrin cable...
April 12, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28406877/scapulothoracic-dissociation-evaluation-and-management
#6
Andrew M Choo, Patrick C Schottel, Andrew R Burgess
Scapulothoracic dissociation is a rare, potentially limb- and life-threatening injury of the shoulder girdle. The injury is characterized by lateral displacement of the scapula resulting from traumatic disruption of the scapulothoracic articulation. The typical physical examination findings consist of substantial swelling of the shoulder girdle, along with weakness, numbness, and pulselessness in the ipsilateral upper extremity. Radiographic evaluation includes measurement of the scapular index on a nonrotated chest radiograph and assessment for either a distracted clavicle fracture or a disrupted acromioclavicular or sternoclavicular joint...
May 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28404457/nerve-injury-during-anterior-cruciate-ligament-reconstruction-a-comparison-between-patellar-and-hamstring-tendon-grafts-harvest
#7
Barak Haviv, Shlomo Bronak, Ehud Rath, Mustafa Yassin
BACKGROUND: Tendon harvesting for anterior cruciate ligament reconstruction often injures sensory branches of the saphenous nerve. The reports on the prevalence of these injuries are scarce, while the implications on patient satisfaction are not known. Our objective was to compare the prevalence of sensory nerve injuries in patellar to hamstring autograft harvesting for anterior cruciate ligament reconstructions and follow up their postoperative course. METHODS: Between 2012 and 2014, patients who had a primary anterior cruciate ligament reconstruction with bone patellar tendon bone or hamstring autografts were included (n=94)...
April 9, 2017: Knee
https://www.readbyqxmd.com/read/28400501/contribution-of-minced-muscle-graft-progenitor-cells-to-muscle-fiber-formation-after-volumetric-muscle-loss-injury-in-wild-type-and-immune-deficient-mice
#8
Benjamin T Corona, Beth E P Henderson, Catherine L Ward, Sarah M Greising
Volumetric muscle injury (VML) causes an irrecoverable loss of muscle fibers, persistent strength deficits, and chronic disability. A crucial challenge to VML injury and possible regeneration is the removal of all of the in situ native elements necessary for skeletal muscle regeneration. Our first goal was to establish a reliable VML model in the mouse tibialis anterior (TA) muscle. In adult male wild-type and nude mice, a non-repaired ≈20% VML injury to the TA muscle resulted in an ≈59% loss in nerve evoked muscle strength, ≈33% loss in muscle mass, and ≈29% loss of muscle fibers at 28 day post-injury...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28394871/triplanar-humeral-osteotomy-for-restoration-of-midline-function-in-patients-with-brachial-plexus-birth-palsy
#9
John D Jennings, Dustin A Greenhill, Scott H Kozin, Dan A Zlotolow
Brachial plexus birth palsy resolves spontaneously in a majority of patients, however, others may have serious permanent dysfunction. Although nerve transfers or grafts are early options for treatment, many children have residual deficits or present too late for such procedures. In these patients, rotational osteotomy of the humerus may restore improved function and motion. Unfortunately, traditional humeral osteotomies only provide correction in a single plane, therefore appropriate correction of the typical residual deformity is incomplete...
April 7, 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28392569/multichannel-polymer-scaffold-seeded-with-activated-schwann-cells-and-bone-mesenchymal-stem-cells-improves-axonal-regeneration-and-functional-recovery-after-rat-spinal-cord-injury
#10
Er-Zhu Yang, Guo-Wang Zhang, Jian-Guang Xu, Shuai Chen, Hua Wang, Liang-Liang Cao, Bo Liang, Xiao-Feng Lian
The adult mammalian CNS has a limited capacity to regenerate after traumatic injury. In this study, a combinatorial strategy to promote axonal regeneration and functional recovery after spinal cord injury (SCI) was evaluated in adult rats. The rats were subjected to a complete transection in the thoracic spinal cord, and multichannel scaffolds seeded with activated Schwann cells (ASCs) and/or rat bone marrow-derived mesenchymal stem cells (MSCs) were acutely grafted into the 3-mm-wide transection gap. At 4 weeks post-transplantation and thereafter, the rats receiving scaffolds seeded with ASCs and MSCs exhibited significant recovery of nerve function as shown by the Basso, Beattie and Bresnahan (BBB) score and electrophysiological test results...
April 10, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28392101/surgical-and-endovascular-treatments-of-extracranial-carotid-artery-aneurysms-report-of-six-cases
#11
Shusuke Yamamoto, Naoki Akioka, Daina Kashiwazaki, Masaki Koh, Naoya Kuwayama, Satoshi Kuroda
BACKGROUND: Although the natural course of extracranial carotid artery aneurysms (ECAAs) is still unknown, they may cause stroke or cranial nerve dysfunction unless they are treated. In this report, we reviewed the clinical results of 6 patients who underwent endovascular and surgical treatments for ECAAs. METHODS: A total of 6 patients underwent endovascular and surgical treatments for ECAAs for 9 years. The primary causes of ECAAs included Marfan syndrome (1 patient), infection (1 patient), trauma (2 patients), and unknown (2 patients)...
April 6, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28387625/surgical-technique-and-results-of-cable-graft-interpositioning-of-the-facial-nerve-in-lateral-skull-base-surgeries-experience-with-213-consecutive-cases
#12
Sampath Chandra Prasad, Karthikeyan Balasubramanian, Enrico Piccirillo, Abdelkader Taibah, Alessandra Russo, Jingchun He, Mario Sanna
OBJECTIVE The aim in this study was to review the technique and outcomes of cable graft interpositioning of the facial nerve (FN) in lateral skull base surgeries. METHODS The authors retrospectively evaluated data from patients who had undergone cable graft interpositioning after nerve sacrifice during skull base tumor removal between June 1987 and May 2015. All patients had undergone lateral skull base approaches to remove tumors at a quaternary referral center in Italy. Facial nerve function was evaluated before and after surgery using the House-Brackmann (HB) grading system...
April 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28387622/editorial-outcomes-of-facial-nerve-repair-using-nerve-grafts-applied-immediately-following-nerve-discontinuity-in-skull-base-surgery
#13
Sudheesh Ramachandran, Rajiv Midha
No abstract text is available yet for this article.
April 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28387564/reliability-of-functioning-free-muscle-transfer-and-vascularized-ulnar-nerve-grafting-for-elbow-flexion-in-complete-brachial-plexus-palsy
#14
S M Potter, S I Ferris
We compared outcomes of primary vascularized ulnar nerve grafts from the C5 root neurotizing biceps and brachialis muscles, and gracilis functioning free muscle transfer neurotized by the distal spinal accessory nerve, as a primary or salvage procedure after complete brachial plexus injury. At 45 months, three of eight primary vascularized ulnar nerve graft patients regained grade 4 elbow flexion, while one regained grade 3. All 13 primary gracilis transfer patients regained grade 4 elbow flexion. Four patients with vascularized ulnar nerve grafts failed and subsequently had salvage functioning free muscle transfer procedures resulting in delayed recovery...
April 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28387164/rectus-abdominis-motor-nerves-as-donor-option-for-free-functional-muscle-transfer-a-cadaver-study-and-case-series
#15
Aaron B Mull, Michael C Nicoson, Amy M Moore, Dan A Hunter, Thomas H Tung
BACKGROUND: Current management of brachial plexus injuries includes nerve grafts and nerve transfers. However, in cases of late presentation or pan plexus injuries, free functional muscle transfers are an option to restore function. The purpose of our study was to describe and evaluate the rectus abdominis motor nerves histomorphologically and functionally as a donor nerve option for free functional muscle transfer for the reconstruction of brachial plexus injuries. METHODS: High intercostal, rectus abdominis, thoracodorsal, and medial pectoral nerves were harvested for histomorphometric analysis from 4 cadavers from levels T3-8...
April 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28387148/malignant-triton-tumor-malignant-peripheral-nerve-sheath-tumor-with-rhabdomyoblastic-differentiation-occurring-in-a-vascularized-free-flap-reconstruction-graft
#16
Roopa Ram, Jerad Gardner, Sindhura Alapati, Kedar Jambhekar, Tarun Pandey, Corey Montgomery, Richard Nicholas
Malignant peripheral nerve sheath tumor (MPNST) is a rare form of sarcoma arising from Schwann cells or pluripotent cells of the neural crest. Malignant triton tumor (MTT) is a subtype of MPNST with a component of malignant rhabdomyoblasts in addition to malignant Schwann cells. MPNST and MTT are both aggressive malignancies that most commonly arise from large deep neurofibromas in patients with neurofibromatosis type 1 (NF-1). However, sporadic non-NF-1 cases of MTT have also been reported in the literature...
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28380694/nerve-stepping-stone-has-minimal-impact-in-aiding-regeneration-across-long-acellular-nerve-allografts
#17
Ying Yan, Daniel A Hunter, Lauren Schellhardt, Xueping Ee, Alison K Snyder-Warwick, Amy M Moore, Susan E Mackinnon, Matthew D Wood
INTRODUCTION: Acellular nerve allografts (ANAs) yield less consistent favorable outcomes compared to autografts for long gap reconstructions. We evaluated whether a hybrid ANA can improve 6cm gap reconstruction. METHODS: Rat sciatic nerve was transected and repaired with either 6cm hybrid or control ANAs. Hybrid ANAs were generated using a 1cm cellular isograft between 2.5cm ANAs, while control ANAs had no isograft. Outcomes were assessed by graft gene and marker expression (n=4; at 4 weeks) and motor recovery and nerve histology (n=10; at 20 weeks)...
April 5, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28373617/the-reduction-and-direct-repair-of-isthmic-spondylolisthesis-using-the-smiley-face-rod-method-in-adolescent-athlete-technical-note
#18
Kazuta Yamashita, Kosaku Higashino, Toshinori Sakai, Yoichiro Takata, Fumio Hayashi, Fumitake Tezuka, Masatoshi Morimoto, Akihiro Nagamachi, Koichi Sairyo
Presently, lumbar spondylolisthesis did not have the indication of direct repair surgery because of the difficulty to reduce the slippage. In this report, we presented a case and described a minimally invasive direct repair surgery to reduce and repair the pars interarticularis defects of lumbar spondylolisthesis. First, curettage and removal of the synovium of the pars interarticularis and decompression of nerve root are conducted. Next, cancellous bone is harvested from the iliac crest. And then the Percutaneous Pedicle Screws are inserted bilaterally...
2017: Journal of Medical Investigation: JMI
https://www.readbyqxmd.com/read/28370691/anatomical-description-of-the-sciatic-nerve-block-at-the-subgluteal-region-in-a-neonatal-cadaver-population
#19
Adrienne A Acar, Adrian T Bösenberg, Albert-Neels van Schoor
INTRODUCTION: Sciatic nerve blocks provide intraoperative and prolonged postoperative pain management after lower limb surgery (posterior knee, foot, skin graft surgery). Accurate needle placement requires sound anatomical knowledge. Anatomical studies on children are uncommon; most have been performed on adult cadavers. We studied the location of the sciatic nerve at the gluteal level in neonatal cadavers to establish useful anatomical landmarks. METHODS: We identified the sciatic nerve in the gluteal and thigh region of 20 neonatal cadavers...
April 3, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28370669/regeneration-of-injured-skin-and-peripheral-nerves-requires-control-of-wound-contraction-not-scar-formation
#20
Ioannis V Yannas, Dimitrios S Tzeranis, Peter T C So
We review the mounting evidence that regeneration is induced in wounds in skin and peripheral nerves by a simple modification of the wound healing process. Here, the process of induced regeneration is compared to the other two well-known processes by which wounds close, i.e., contraction and scar formation. Direct evidence supports the hypothesis that the mechanical force of contraction (planar in skin wounds, circumferential in nerve wounds) is the driver guiding the orientation of assemblies of myofibroblasts (MFB) and collagen fibers during scar formation in untreated wounds...
April 1, 2017: Wound Repair and Regeneration
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