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https://www.readbyqxmd.com/read/28918454/assessment-of-thermotactile-and-vibrotactile-thresholds-for-detecting-sensorineural-components-of-the-hand-arm-vibration-syndrome-havs
#1
Ying Ye, Michael J Griffin
BACKGROUND: Thermotactile thresholds and vibrotactile thresholds are measured to assist the diagnosis of the sensorineural component of the hand-arm vibration syndrome (HAVS). OBJECTIVES: This study investigates whether thermotactile and vibrotactile thresholds distinguish between fingers with and without numbness and tingling. METHODS: In 60 males reporting symptoms of the hand-arm vibration syndrome, thermotactile thresholds for detecting hot and cold temperatures and vibrotactile thresholds at 31...
September 16, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/28917547/growth-of-the-new-thumb-metacarpal-after-pollicization-for-thumb-hypoplasia
#2
Michael A Tonkin, Nathan D Trist, Dirk J van der Spuy, Albert Yoon, Harvinder P Singh, Richard D Lawson
PURPOSE: To investigate the radiographic length and width of the new thumb metacarpal in relation to the middle finger proximal phalanx; to assess the incidence of premature physeal closure of the new metacarpal; and to consider whether there is a relationship between growth characteristics and the presence of union or nonunion of the new trapezium to the retained index finger metacarpal base. MATERIALS AND METHODS: Forty pollicizations were assessed with preoperative or immediate postoperative radiographs and follow-up radiographs to establish the growth characteristics of the new thumb metacarpal...
September 14, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28913778/neural-basis-of-early-somatosensory-change-detection-a-magnetoencephalography-study
#3
G Naeije, T Vaulet, V Wens, B Marty, S Goldman, X De Tiège
The mismatch negativity (MMN) reflects the early detection of changes in sensory stimuli at the cortical level. The mechanisms underlying its genesis remain debated. This magnetoencephalography study investigates the spatio-temporal dynamics and the neural mechanisms of the magnetic somatosensory MMN. Somatosensory evoked magnetic fields elicited by tactile stimulation of the right fingertip (Single), tactile stimulation of the right middle phalanx and fingertip (Double) or omissions (Omitted) of tactile stimuli were studied in different paradigms: in oddballs where Double/Omitted followed a sequence of four Single, in sequences of two stimuli where Double occurred after one Single, and in random presentation of Double only...
September 14, 2017: Brain Topography
https://www.readbyqxmd.com/read/28906300/isolated-dorsoradial-capsular-tear-of-the-thumb-metacarpophalangeal-joint-missed-diagnosis-and-the-management-of-delayed-presentation
#4
Yvette Godwin, Britt Ter Horst, Godwin Scerri
Isolated dorsoradial capsule injuries of the thumb metacarpophalangeal joint are different from those associated with collateral ligament disruption. Early suspicion of this rare injury is important because, if overlooked, ulnarward subluxation of extensor pollicis longus tendon can develop. Functionally, active thumb extension becomes impaired, and over the long term, a thumb Boutonniere's deformity becomes established. Joint hypermobility/instability may predispose to this injury. The 2 cases presented illustrate this through anatomic differences...
September 12, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28904276/a-case-of-acromegaly-in-which-a-pituitary-gland-tumor-was-reduced-significantly-by-administering-octreotide-long-acting-release-lar-and-could-be-removed-surgically
#5
Tadashi Arao, Yosuke Okada, Fumi Uemura, Shigeru Nishizawa, Yoshiya Tanaka
A 54-year-old woman was admitted to our hospital for detailed examination of acromegaly because she noticed bilateral hand and finger swelling at the age of 43 and plantar thickening, facial changes and unclear articulation at the age of 49. She had prominent brow ridges, mandibular protrusion, and enlargement of the hands, feet, nasal wings, lips and tongue. Her growth hormone (GH) level was 39.8 ng/ml, insulin-like growth factor-1 (IGF-1) level was 717 ng/ml, GH level was not suppressed (22.9 ng/ml) during a 75-g oral glucose tolerance test (OGTT)...
2017: Journal of UOEH
https://www.readbyqxmd.com/read/28902098/repair-of-the-thumb-ulnar-collateral-ligament-with-suture-tape-augmentation
#6
Anthony F De Giacomo, Steven S Shin
One of the most commonly injured structures of the thumb metacarpophalangeal (MCP) joint is the ulnar collateral ligament (UCL). An acute injury of this ligament is often amenable to primary repair. Despite the favorable outcomes of primary repair, the thumb is often restricted during initial healing of the ligament with immobilization and delayed rehabilitation. We present a novel technique to augment the repair of the UCL with suture tape to provide immediate biomechanical support and strength during the critical time of ligament healing...
September 8, 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28888716/ideal-angle-of-syndesmotic-screw-fixation-a-ct-based-cross-sectional-image-analysis-study
#7
Young Hwan Park, Won Seok Choi, Gi Won Choi, Hak Jun Kim
Without clear reference, the precision of syndesmotic screw placement cannot be guaranteed and malposition of these screws leads to poor results. Therefore, to prevent malpositioning of syndesmotic screws, an improved understanding of the orientation of tibiofibular syndesmosis is essential. We analyzed cross-sectional computed tomography (CT) scans of the foot and ankle to identify precise screw positions for the treatment of syndesmotic injuries. A total of 134 calcaneal fractures with intact tibiofibular syndesmosis were enrolled in this retrospective study...
September 6, 2017: Injury
https://www.readbyqxmd.com/read/28888567/biomechanics-of-the-acute-boutonniere-deformity
#8
Luis Grau, Hasan Baydoun, Kevin Chen, Seth T Sankary, Farid Amirouche, Mark H Gonzalez
PURPOSE: To demonstrate which structures of the extensor mechanism create a boutonniere deformity, when damaged, in a cadaver model. An analysis of how damage to these anatomical structures affects the biomechanical performance of the extensor mechanism was also performed. METHODS: We secured 18 fresh cadaveric hands onto an apparatus consisting of a computer-controlled motor and tensiometer attached in series to the extensor communis tendon of the ring and middle digits...
September 7, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28867910/hook-plate-fixation-for-the-thumb-ulnar-collateral-ligament-fracture-avulsion
#9
Ali Tabrizi, Ahmadreza Afshar
During a taekwondo competition, a 20-year-old female competitor injured her left thumb. There was pain, swelling, and tenderness at the ulnar side of the metacarpophalangeal joint. Plain radiography demonstrated an avulsion fracture with a small-size fragment at the base of the proximal phalanx. A mini hook plate was used to repair the lesion. The patient was satisfied with the results and returned to her sports activities after 2 months.
August 2017: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/28844774/disseminated-cryptococcal-osteomyelitis-to-the-hand-in-an-immunosuppressed-lymphoma-patient
#10
Wayne A Chen, Cynthia L Emory, Benjamin R Graves
Fungal osteomyelitis of the hand is rare with limited evidence-based literature to guide diagnosis and management. We report a case of disseminated cryptococcal osteomyelitis in the middle phalanx from a pulmonary fungal infection in a patient with a history of lymphoplasmacytic lymphoma. Although rare, cryptococcosis should be considered in the differential diagnosis of aggressive lytic lesions with bone pain and associated large soft tissue masses, especially in the immunosuppressed host.
August 25, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28839092/simple-phalanx-pattern-leads-to-energy-saving-in-cohesive-fish-schooling
#11
Intesaaf Ashraf, Hanaé Bradshaw, Thanh-Tung Ha, José Halloy, Ramiro Godoy-Diana, Benjamin Thiria
The question of how individuals in a population organize when living in groups arises for systems as different as a swarm of microorganisms or a flock of seagulls. The different patterns for moving collectively involve a wide spectrum of reasons, such as evading predators or optimizing food prospection. Also, the schooling pattern has often been associated with an advantage in terms of energy consumption. In this study, we use a popular aquarium fish, the red nose tetra fish, Hemigrammus bleheri, which is known to swim in highly cohesive groups, to analyze the schooling dynamics...
August 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28836462/a-biomechanical-evaluation-of-a-2-suture-anchor-repair-technique-for-thumb-metacarpophalangeal-joint-ulnar-collateral-ligament-injuries
#12
Joseph A Gil, Alison Chambers, Kalpit N Shah, Joseph J Crisco, Christopher Got, Edward Akelman
BACKGROUND: A complete thumb ulnar collateral ligament (UCL) repaired with 1-suture anchor has been demonstrated to be significantly weaker compared with the intact UCL. The objective of this study is to test the biomechanical strength of a 2-anchor thumb UCL repair. METHODS: Nine paired fresh-frozen hands were used for this biomechanical analysis. One thumb from each pair was randomized to the control group and one to the repair group. In the control group, the UCL was loaded to failure in tension...
August 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28834709/correlations-between-blood-perfusion-and-dermal-thickness-in-different-skin-areas-of-systemic-sclerosis-patients
#13
B Ruaro, A Sulli, C Pizzorni, S Paolino, V Smith, E Alessandri, A C Trombetta, J Alsheyyab, M Cutolo
OBJECTIVE: To identify possible correlations between skin blood perfusion (BP) and dermal thickness (DT) in different skin areas of systemic sclerosis (SSc) patients. METHODS: Sixty-two SSc patients, according to 2013 EULAR/ACR criteria, and 62 healthy subjects (CNT) were enrolled. Skin BP was analysed by laser speckle contrast analysis (LASCA) at the level of dorsum of the middle phalanx of the third fingers, dorsal aspect of the hands and zygoma. DT was assessed by both skin high frequency ultrasound (US) and modified Rodnan skin score (mRSS) in the same above reported areas...
August 20, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28829987/closed-reduction-and-percutaneous-periarticular-single-k-wire-fixation-for-displaced-unstable-transverse-fractures-of-the-proximal-phalanx-in-elderly-osteoporotic-women-a-case-series-of-five-patients
#14
Abdulaziz Alazzam, Mohammad M Al-Qattan
INTRODUCTION: A literature review did not reveal any study investigating the results of surgical management of fractures of the proximal phalanx in elderly osteoporotic women. We present a case series of five patients. PATIENTS AND METHODS: Five consecutive cases with seven fractures of the shaft/base of the proximal phalanx were retrospectively reviewed. The mean age of the study group was 72.4 years (range, 70-76 years). All patients were on treatment for osteoporosis at the time of injury...
August 10, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28822893/on-top-and-side-to-side-plasties-for-thumb-polydactyly
#15
Noha M Al-Qattan, Mohammad M Al-Qattan
INTRODUCTION: "On-top" and "side-to-side" plasties are techniques used for treating thumb duplications in which one thumb is adequate proximally and the other thumb contains a better pulp and nail distally. The detailed functional results of these techniques have not been reported in the literature. We report on two cases. PRESENTATION OF CASES: The first case had Wassel type VI duplication. The ulnar duplicate had a functioning interphalangeal joint and the radial duplicate had a functioning carpometacarpal joint...
August 8, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28820841/oblique-osteotomy-for-the-correction-of-the-zigzag-deformity-of-wassel-type-iv-polydactyly
#16
Byung Jun Kim, Jun Ho Choi, Sung Tack Kwon
BACKGROUND: Surgical treatment of the Wassel type IV polydactyly of the thumb is technically challenging, especially when it has a diamond-shape or zigzag deformity. However, we obtained good operative results by performing oblique osteotomy with autologous fat graft in 30 patients with zigzag deformity polydactyly. METHODS: Following removal of the radial-sided extra digit, the radially-deviated distal phalanx (DP) was corrected by performing oblique osteotomy at the proximal phalanx (PP)...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28816972/low-second-to-fourth-digit-ratio-in-dupuytren-disease
#17
Takuya Yokoi, Takuya Uemura, Kenichi Kazuki, Ema Onode, Kosuke Shintani, Mitsuhiro Okada, Hiroaki Nakamura
The ratio of the lengths of the second and fourth digits (2D:4D) has been described as reflecting endogenous prenatal androgen exposure. In general, 2D:4D is lower in men than in women and has potential as a biomarker or predictor for various diseases, athletic ability, and academic performance. Dupuytren disease has digital flexion contractures and is known to predominate in men, but the pathogenesis of the disease remains unclear. To clarify the relationships between Dupuytren disease and endogenous androgens, we performed a retrospective analysis of hand radiographs to investigate 2D:4D in Dupuytren disease...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28814030/quantitative-evaluation-of-hand-functions-using-a-wearable-hand-exoskeleton-system
#18
Suin Kim, Jeongsoo Lee, Wookeun Park, Joonbum Bae
To investigate, improve, and observe the effect of rehabilitation therapy, many studies have been conducted on evaluating the motor function quantitatively by developing various types of robotic systems. Even though the robotic systems have been developed, functional evaluation of the hand has been rarely investigated, because it is difficult to install a number of actuators or sensors to the hand due to limited space around the fingers. Therefore, in this study, a hand exoskeleton was developed to satisfy the required specifications for evaluating the hand functions including spasticity of finger flexors, finger independence, and multi-digit synergy and algorithms to evaluate such functions were proposed...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28808625/epidemiology-of-open-fractures-in-sport-one-centre-s-15-year-retrospective-study
#19
Alexander M Wood, Greg A J Robertson, Kirsty MacLeod, Anna Porter, Charles M Court-Brown
AIM: To describe the epidemiology of sport-related open fractures from one centre's adult patient population over a 15-year period. METHODS: A retrospective review of a prospectively-collected database was performed: The database contained information all sport-related open fractures, sustained from 1995 to 2009 in the Edinburgh, Mid and East Lothian Populations. RESULTS: Over the 15-year period, there were 85 fractures recorded in 84 patients...
July 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28790000/emergency-metacarpophalangeal-arthroplastywith-bone-grafting-for-traumatic-joint-destruction
#20
G Pomares, V Calafat, D Montoya-Faivre, F Dap, G Dautel
Emergency arthroplasty of the metacarpophalangeal joint (MCPJ) remains a valuable treatment option in patients with MCPJ destruction but may raise challenges in the event of substantial metacarpal and/or phalangeal bone defects. We report three cases ofMCPJdestruction with bone defects at the proximal first phalanx treated with emergency silicone implant arthroplasty combined with bone grafting.
August 5, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
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