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radial nerve injury

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https://www.readbyqxmd.com/read/29124342/connections-between-radial-and-ulnar-nerve-at-high-humeral-level-in-cadavers-incidence-topography-and-literature-review
#1
Konstantinos Natsis, A Giannakopoulou, M Piagkou, N Lazaridis, T Tegos, M R Colonna
PURPOSE: Although communications between branches and cords of the brachial plexus have been extensively published, there is a scarcity of reports concerning radial and ulnar nerve (RN-UN) communication in the arm. The current study aims to demonstrate the incidence, topography, and length of communicating branches between RN and UN. Any additional coexisted variations were also recorded. MATERIALS AND METHODS: Two hundred and sixty-six upper limbs collected from one hundred and thirty-three (81 males and 52 females) Greek cadavers were dissected...
November 9, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29122426/anatomical-factors-contributing-to-radial-nerve-excursion-at-the-brachium-a-cadaveric-study
#2
Wayne A Chen, T David Luo, Michael D Wigton, Zhongyu Li
PURPOSE: The radial nerve appears to be more vulnerable to injury in the brachium than the median and ulnar nerves. The underlying mechanism for this increased vulnerability is not well explained. We hypothesize that the radial nerve has less excursion than the median and ulnar nerves because it is anatomically tethered by the lateral intermuscular septum (LIS) and that elbow positioning and LIS release will improve its excursion. METHODS: Eight paired fresh-frozen cadaveric upper extremity specimens were used...
November 7, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29122115/humeral-shaft-cerclage-wiring-a-safe-technique-to-prevent-radial-nerve-injury
#3
Stephan Grechenig, Gloria Hohenberger, Bore Bakota, Mario Staresinic, Peter Grechenig, Antonio Ernstberger
Humeral periprosthetic fractures are a challenging problem and their occurrence has increased, particularly over the last decade. The role of cerclage wires or cables in these fractures includes revisions with longer stems, and augmentation of a plate osteosynthesis in which the stem does not allow additional screw placement or structural bone grafts as supplementary fixation. These procedures are demanding because of the proximity of the radial nerve within the operating field. Placing a cerclage wire or cable around the fractured fragments offers a simple and safe procedure to avoid radial nerve injury or palsy in the treatment of complex humeral shaft fractures...
November 2017: Injury
https://www.readbyqxmd.com/read/29096351/a-case-report-of-an-isolated-fracture-through-the-radial-bicipital-tuberosity
#4
Kanta Imao, Hitoshi Miwa, Kazutoshi Watanabe, Norio Imai, Naoto Endo
INTRODUCTION: Generally, anatomical reduction of shaft fractures through operative treatment is necessary to restore the anatomical relationship of the forearm bones. However, a number of nerves and vessels are located in the proximal radius, which complicates surgery. In this study, we aimed to reduce postoperative complications by using a posterior approach. PRESENTATION OF CASE: We describe an isolated fracture through the radial bicipital tuberosity in a 69-year-old man caused by direct blunt force and our management of the fracture...
October 27, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29073501/nerve-transfer-to-relieve-pain-in-upper-brachial-plexus-injuries-does-it-work
#5
Mohammadreza Emamhadi, Sasan Andalib
OBJECTIVES: Patients with C5 and C6 nerve root avulsion may complain from pain. For these patients, end-to-side nerve transfer of the superficial radial nerve into the median nerve is suggested to relieve pain. PATIENTS AND METHODS: Eleven patients (with a primary brachial plexus reconstruction) undergoing end-to-side nerve transfer of the superficial radial nerve into the ulnovolar part of the median nerve were assessed. Pain before surgery was compared to that at 6-month follow-up using visual analog scale (VAS) scores...
October 16, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29052827/primary-exploration-for-radial-nerve-palsy-associated-with-unstable-closed-humeral-shaft-fracture
#6
Soo Hong Han, In Tae Hong, Ho Jae Lee, Sang June Lee, Uk Kim, Dong Won Kim
BACKGROUND: The treatment of radial nerve palsy caused by closed humeral shaft fracture is a matter of debate. The purpose of this study is to evaluate the outcome of early surgical management of radial nerve palsy in patients with unstable closed humeral shaft fractures and to determine whether patients with this injury should be surgically explored. METHODS: Medical records of 15 consecutive patients who had undergone open reduction and internal fixation for unstable closed humeral shaft fractures were reviewed...
September 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29042331/the-first-experience-of-triple-nerve-transfer-in-proximal-radial-nerve-palsy
#7
Mohammadreza Emamhadi, Sasan Andalib
BACKGROUND: Injury to distal of posterior cord of brachial plexus leads to palsy of the radial and axillary nerves. The symptoms are usually motor deficits of the deltoid muscle, triceps brachii muscle, and the extensor muscles of the wrist, thumb and fingers. Tendon transfers, nerve grafts, and nerve transfers are options of surgical treatment of proximal radial nerve palsy to restore some motor functions. Tendon transfer is painful, requires a long immobilization, and decreases donor muscle strength; nevertheless, nerve transfer produces promising outcome...
October 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29021878/displaced-supracondylar-humerus-fractures-in-children-are-they-all-identical
#8
S K Gera, McH Tan, Y G Lim, Kbl Lim
Introduction: This study aims to ascertain if there are any differences in supracondylar fractures between children under seven years of age and those above 7 years of age. Materials and Methods: All cases of displaced humerus supracondylar fractures that required surgical stabilization were identified and retrospectively reviewed. Demographic data, mode of injury, associated neurovascular injuries and details of surgery performed were obtained from clinical records. The Gartland classification and the extent of comminution of fractures were also documented from review of radiographs...
July 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28970996/ultrasound-assisted-posteromedial-portal-placement-of-the-elbow-joint-to-prevent-ulnar-nerve-injury
#9
Hiroshi Ohuchi, Rolando Junior L Torres, Kotaro Shinga, Ken Ichikawa, Yuki Kato, Soichi Hattori, Shin Yamada
Direct posterior and posterolateral portals are the standard portals used in posterior elbow arthroscopy. A posteromedial portal in the elbow is not recommended because of its proximity to the ulnar nerve. However, iatrogenic injuries to the ulnar nerve have been reported after elbow arthroscopy using the standard posterior portals, especially in posteromedial elbow joint pathologies. We present a surgical technique applicable to posteromedial elbow pathology by using ultrasound-assisted posteromedial portal placement of the elbow joint...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28939334/surgical-anatomy-of-the-radial-nerve-in-the-deltopectoral-approach-for-revision-shoulder-arthroplasty-and-periprosthetic-fracture-fixation-a-cadaveric-study
#10
Michael C Fu, Michael D Hendel, Xiang Chen, Russell F Warren, David M Dines, Lawrence V Gulotta
BACKGROUND: Radial nerve injury is a rare but clinically significant complication of revision shoulder arthroplasty and fixation of native and periprosthetic proximal humeral fractures. Understanding of the anatomic relationship between the radial nerve as it enters the humeral spiral groove and anterior shoulder landmarks in a deltopectoral approach is necessary to avoid iatrogenic radial nerve injury. METHODS: Eight forequarter cadaveric specimens were dissected through a deltopectoral approach...
September 19, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28932881/nerve-injuries-do-occur-in-elbow-arthroscopy
#11
Nick F J Hilgersom, Derek F P van Deurzen, Carina L E Gerritsma, Huub J L van der Heide, Martijn J A Malessy, Denise Eygendaal, Michel P J van den Bekerom
PURPOSE: The purpose is to create more awareness as well as emphasize the risk of permanent nerve injury as a complication of elbow arthroscopy. METHODS: Patients who underwent elbow arthroscopy complicated by permanent nerve injury were retrospectively collected. Patients were collected using two strategies: (1) by word-of-mouth throughout the Dutch Society of Shoulder and Elbow Surgery, and the Leiden University Nerve Centre, and (2) approaching two medical liability insurance companies...
September 20, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28890121/surgical-treatment-of-extra-articular-distal-third-diaphyseal-fractures-of-the-humerus-using-a-modified-posterior-approach-and-an-extra-articular-plate
#12
P Páramo-Díaz, M Arroyo-Hernández, V Rodríguez Vega, M Aroca-Peinado, J L León-Baltasar, P Caba-Doussoux
PURPOSE: To evaluate the clinical and radiological outcomes of these fractures treated through a modified posterior approach with a distal humerus plate. MATERIAL AND METHODS: Between 2013 and 2015 we performed a retrospective study of these fractures surgically treated in our centre. INCLUSION CRITERIA: older than 18 years old, no pathological fractures, follow up 1 year at least. 23 patients underwent surgery, mean age 45 years old, with an average follow-up of 18 months...
September 7, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/28887648/evaluation-of-donor-site-morbidity-after-medial-triceps-brachii-free-flap-for-lower-limb-reconstruction
#13
A Delgove, R Weigert, V Casoli
INTRODUCTION: The medial head of the triceps brachii muscle (MTB)-free flap is an attractive solution to cover small-to-medium defects of the lower limb. This muscular head has no well-identified function, suggesting minimal impact of its removal on elbow mobility. The aim of this study was to evaluate the safety and reliability of the harvest procedure and the functional and cosmetic morbidity of this donor site. MATERIALS AND METHODS: Twenty-four consecutive MTB-free flaps were performed for reconstructive surgery of the lower limb between 2011 and 2015...
September 8, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28885383/application-of-a-modified-pedicled-adipofascial-lateral-arm-flap-in-the-prevention-and-treatment-of-radial-nerve-injuries
#14
Steven M Koehler, Andrew P Matson, Suhail K Mithani
The fasciocutaneous lateral arm flap is a workhorse flap in upper extremity reconstruction. However, its adipofascial variant is not widely used. The technique can be used in various clinical scenarios. The adipofascial flap can be transposed to circumferentially wrap the radial nerve with a pliable, vascularized fat and fascial envelope, mimicking the natural fatty environment of peripheral nerves. This technique has the advantage of providing a scar tissue barrier, a barrier to hardware irritation and a milieu for vascular regeneration of the nerve...
December 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28880149/dual-function-of-the-pi3k-akt-mtorc1-axis-in-myelination-of-the-peripheral-nervous-system
#15
Gianluca Figlia, Camilla Norrmén, Jorge A Pereira, Daniel Gerber, Ueli Suter
Myelination is a biosynthetically demanding process in which mTORC1, the gatekeeper of anabolism, occupies a privileged regulatory position. We have shown previously that loss of mTORC1 function in Schwann cells (SCs) hampers myelination. Here, we genetically disrupted key inhibitory components upstream of mTORC1, TSC1 or PTEN, in mouse SC development, adult homeostasis, and nerve injury. Surprisingly, the resulting mTORC1 hyperactivity led to markedly delayed onset of both developmental myelination and remyelination after injury...
September 7, 2017: ELife
https://www.readbyqxmd.com/read/28856389/structural-and-metabolic-changes-in-the-traumatically-injured-rat-brain-high-resolution-in-vivo-proton-magnetic-resonance-spectroscopy-at-7%C3%A2-t
#16
Jing Li, Can Zhao, Jia-Sheng Rao, Fei-Xiang Yang, Zhan-Jing Wang, Jian-Feng Lei, Zhao-Yang Yang, Xiao-Guang Li
PURPOSE: The understanding of microstructural and metabolic changes in the post-traumatic brain injury is the key to brain damage suppression and repair in clinics. METHODS: Ten female Wistar rats were traumatically injured in the brain CA1 region and above the cortex. Next, diffusion tensor magnetic resonance imaging (DTI) and proton magnetic resonance spectroscopy ((1)H MRS) were used to analyze the microstructural and metabolic changes in the brain within the following 2 weeks...
August 31, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28844197/functional-outcome-of-extra-articular-distal-humerus-fracture-fixation-using-a-single-locking-plate-a-retrospective-study
#17
Vivek Trikha, Prabhat Agrawal, Saubhik Das, Sahil Gaba, Arvind Kumar
PURPOSE: The optimal method for fixation of extra-articular distal humerus factures poses a management dilemma. Although various plate configurations have been proposed, anatomic shaped extra-articular distal humerus locking plates have emerged as a viable solution for these complex injuries. We assessed clinico-radiologic outcome in our retrospective case series of extra-articular distal humerus fractures managed with these plates. METHODS: Forty-five patients of extra-articular distal humerus fractures, who were operated at our level 1 trauma centre between January, 2012 and December, 2016, were identified...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28822638/modified-anterolateral-portals-in-elbow-arthroscopy-a-cadaveric-study-on-safety
#18
Stephen Thon, Peter Gold, Lane Rush, Michael J O'Brien, Felix H Savoie
PURPOSE: To evaluate the proximity to the radial nerve on cadaveric specimens of 2 modified anterolateral portals used for elbow arthroscopy. METHODS: Ten fresh cadaveric elbow specimens were prepared. Four-millimeter Steinman pins were inserted into 3 anterolateral portal sites in relation to the lateral epicondyle: (1) the standard distal anterolateral portal, (2) a modified direct anterolateral portal, and (3) a modified proximal anterolateral portal. These were defined as follows: direct portals 2 cm directly anterior to the lateral epicondyle, and proximal portals 2 cm proximal and 2 cm directly anterior to the lateral epicondyle...
November 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28799442/the-use-of-innervated-radial-artery-superficial-palmar-branch-perforator-free-flap-for-complex-digital-injuries-reconstruction
#19
Zhenglin Chi, Georgios Pafitanis, Luis Eduardo Parra Pont, Roshan Vijayan, Stefano Marcelli, Weiyang Gao, Zan Li, Xiao Zhou, Dajiang Song, Peng Yang
Loco-regional flaps have been widely used for the reconstruction of digital injuries without requiring microvascular anastomosis, however, they result in scarring and compromised functional outcomes. This study demonstrates our experience utilizing the innervated radial artery superficial palmar branch (RASPB) perforator free flap for complex digital injury reconstruction. From May 2007 to March 2014, the innervated RASPB perforator free flap was used to reconstruct 79 distal complex hand and digital soft tissue defects of which 14 were used to re-vascularise the distal digit in a flow-through fashion...
August 11, 2017: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/28777281/recovery-of-motor-nerve-injuries-associated-with-displaced-extension-type-pediatric-supracondylar-humerus-fractures
#20
Benjamin J Shore, Bryce T Gillespie, Patricia E Miller, Donald S Bae, Peter M Waters
BACKGROUND: Nerve injuries occur in approximately 11% of pediatric extension supracondylar humerus fractures (SCHF), yet there is scarce literature to guide clinicians on management. The primary goal of this study was to report the presentation, treatment, and outcome of motor nerve injuries associated with extension SCHF. Our secondary goal was to determine which injury and treatment factors were associated with prolonged motor nerve recovery. METHODS: Two hundred forty-four traumatic nerve injuries associated with extension SCHF treated at a single institution between 1996 and 2012 were reviewed...
August 2, 2017: Journal of Pediatric Orthopedics
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