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Finger flexor tendon

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https://www.readbyqxmd.com/read/28530766/right-ring-finger-volar-mass-in-a-14-year-old-boy
#1
Mary P Fox, Jack E McKay, Randall D Craver, Nicholas D Pappas
A trigger digit is relatively uncommon in adolescents and often has a different etiology in that age group vs adults. In the pediatric population, trigger digits frequently arise from a variety of underlying anatomic situations, including thickening of the flexor digitorum superficialis or flexor digitorum profundus tendons, an abnormal relationship between the flexor digitorum superficialis and flexor digitorum profundus tendons, a proximal flexor digitorum superficialis decussation, or constriction of the pulleys...
May 20, 2017: Orthopedics
https://www.readbyqxmd.com/read/28511568/flexor-tendon-ruptures-after-distal-scaphoid-excision-for-scaphotrapeziotrapezoid-osteoarthritis
#2
Matthew E Deren, Charles H Mitchell, Arnold-Peter C Weiss
BACKGROUND: Distal scaphoid excision is one treatment option for osteoarthritis of the scaphotrapeziotrapezoid (STT) joint following failure of conservative measures. Potential complications of this procedure include injury to the carpal ligaments, cartilage, and radial artery. METHODS: A single case was identified by the senior author, and the medical record was reviewed for surgical notes, progress notes, and radiographs. RESULTS: A 68-year-old male sustained ruptures of the flexor digitorum superficialis (FDS) and flexor digitorum profundus to the index finger 3 years following a distal scaphoid excision for symptomatic STT osteoarthritis...
May 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28506156/flexor-digitorum-superficialis-tendon-sling-volar-plate-reconstruction-for-swan-neck-deformity-in-the-spastic-finger
#3
Y L Tan, F C Yong
The condition of proximal interphalangeal joint (PIPJ) locking in hyperextension may occur in the athetoid or spastic hand with moderate or severe swan-neck deformity at the 'opening' phase of prehension. The patient's complaints are of complete or incomplete locking that may require passive assistance to initiate PIPJ flexion. Surgical procedures to overcome this include rerouting the lateral band, stabilisation or reconstruction procedure for the volar instability of the PIPJ, etc. Volar stabilisation may be achieved by Flexor digitorum superficialis (FDS) tenodesis procedures or criss-cross tendon graft for volar plate reconstruction...
June 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28501340/epitendinous-first-repair-of-zone-ii-flexor-digitorum-profundus-results-in-decreased-gliding-resistance
#4
Michael G Galvez, Garet C Comer, Arhana Chattopadhyay, Chao Long, Anthony W Behn, James Chang
PURPOSE: The importance of flexor tendon repair with both core and epitendinous suture placement has been well established. The objective of this study was to determine whether suture placement order affects gliding resistance and bunching in flexor digitorum profundus tendons in a human ex vivo model. METHODS: The flexor digitorum profundus tendons of the index, middle, ring, and little fingers of paired cadaver forearms were tested intact for excursion and mean gliding resistance in flexion and extension across the A2 pulley...
May 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28487773/clinical-assessment-of-the-congenital-absence-of-palmaris-longus-and-flexor-digitorum-superficialis-muscles-in-young-saudi-population
#5
Mohammed Talal Alzahrani, Mohammad Abdullah Almalki, Turki Abdullah Al-Thunayan, Amjaad Hamad Almohawis, Ahmed Turki Al Turki, Loung Umedani
Introduction. Congenital Palmaris Longus (PL) absence was found in 15%-20.25% of population globally. This condition and Flexor Digitorum Superficialis (FDS) tendon absence in little finger are not known in Saudi Arabia. We studied prevalence of PL and FDS agenesis in Saudi Arabian population. Methods. A random cross-sectional study was carried out after an ethical approval in the Riyadh universities. Schaeffer's test was used to examine PL absence. The Modified test was used to examine FDS absence. Data was analyzed using Microsoft Excel and the SPSS Software version 22...
2017: Anatomy Research International
https://www.readbyqxmd.com/read/28461643/development-and-validation-of-the-omeract-rheumatoid-arthritis-magnetic-resonance-tenosynovitis-scoring-system-in-a-multireader-exercise
#6
Daniel Glinatsi, Paul Bird, Frédérique Gandjbakhch, Espen A Haavardsholm, Charles G Peterfy, Edward M Vital, Paul Emery, Philip G Conaghan, Mikkel Østergaard
OBJECTIVE: To develop and validate a magnetic resonance imaging (MRI) tenosynovitis (TS) score for tendons at the wrist and metacarpophalangeal (MCP) joint levels in patients with rheumatoid arthritis (RA). METHODS: Axial T1-weighted precontrast and postcontrast fat-saturated MR image sets of the hands of 43 patients with RA initiating rituximab therapy were obtained at baseline and after 14, 26, 38, or 52 weeks. The MR images were scored twice by 4 readers. Nine tendon compartments of the wrist and 4 flexor tendon compartments at the MCP joints were assessed...
May 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28461087/long-term-outcome-of-paediatric-flexor-tendon-injuries-of-the-hand
#7
Georg Singer, Thomas Zwetti, Ruth Amann, Christoph Castellani, Holger Till, Barbara Schmidt
The ideal rehabilitation regimen of paediatric flexor tendon injuries of the hand is discussed controversially. In this study, the clinical outcome of paediatric patients with flexor tendon injuries treated with a dynamic postoperative protocol was assessed. All children with flexor tendon injuries of the hand who were treated by a dynamic postoperative protocol between 1999 and 2011 were included. Patients were invited for a follow-up examination consisting of clinical examination, the TAM and Buck-Gramcko scores, and the linear measurement system...
April 8, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28453343/acute-isolated-flexor-tendon-laceration-associated-with-a-distal-radius-fracture
#8
J Ryan Hill, Ram K Alluri, Alidad Ghiassi
BACKGROUND: Subacute rupture of the flexor tendons secondary to distal radius fractures is well documented. Recently, accounts of flexor tendon rupture following open reduction internal fixation have been associated with volar plate fixation. However, discovery of an occult traumatic flexor tendon laceration during fixation of an acute distal radius fracture is not well described. This case indicates the importance of careful preoperative and intraoperative examination of the flexor tendons in the setting of comminuted distal radius fractures...
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28453342/flexor-tendon-rupture-due-to-previously-undiagnosed-kienb%C3%A3-ck-disease-a-case-report
#9
Kenrick Turner, Nicholas N Sheppard, Samuel E Norton
BACKGROUND: Spontaneous flexor tendon rupture is rare and most common in the little finger. The pathogenesis of spontaneous tendon ruptures is unclear but may occur through attrition or mechanical abrasion over a bony prominence. Kienböck disease is avascular necrosis of the lunate, with an unknown etiology. METHODS: We present a case of spontaneous rupture of flexor digitorum profundus due to Kienböck disease, which we believe is the first recorded case of flexor tendon rupture attributable to osteonecrosis of the lunate...
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28423932/comparing-biomechanical-properties-repair-times-and-value-of-common-core-flexor-tendon-repairs
#10
Aakash Chauhan, Patrick Schimoler, Mark C Miller, Alexander Kharlamov, Gregory A Merrell, Bradley A Palmer
BACKGROUND: The aim of the study was to compare biomechanical strength, repair times, and repair values for zone II core flexor tendon repairs. METHODS: A total of 75 fresh-frozen human cadaveric flexor tendons were harvested from the index through small finger and randomized into one of 5 repair groups: 4-stranded cross-stitch cruciate (4-0 polyester and 4-0 braided suture), 4-stranded double Pennington (2-0 knotless barbed suture), 4-stranded Pennington (4-0 double-stranded braided suture), and 6-stranded modified Lim-Tsai (4-0 looped braided suture)...
April 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28417053/pacinian-corpuscle-like-structure-in-the-digital-tendon-sheath-and-nail-bed-a-study-using-late-stage-human-fetuses
#11
Ji Hyun Kim, Koichiro Sakanaka, Naomitsu Tomita, Gen Murakami, Hiroshi Abe, Shinichi Abe
Pacinian corpuscle-like structures were identified in the digital tendon sheaths and nail beds of hands obtained from eight of 12 human fetuses of gestational age 20-34 weeks (crown-rump length, 150-290 mm). The aberrant corpuscles were present in tight fibrous tissue connecting the flexor tendon sheath to the dorsal aponeurosis (138 corpuscles in the thumbs and all fingers of eight fetuses); loose fibrous tissue inside the sheath on the dorsal side of the tendon (37 corpuscles in the thumbs and all fingers of four fetuses); and the nail bed (10 clusters in the thumbs and second fingers of four smaller fetuses)...
March 2017: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/28365148/outcomes-after-flexor-tendon-repair-combined-with-the-application-of-human-amniotic-membrane-allograft
#12
Olli V Leppänen, Teemu Karjalainen, Harry Göransson, Annika Hakamäki, Jouni Havulinna, Jyrki Parkkinen, Jarkko Jokihaara
PURPOSE: Clinically proven methods to prevent adhesion formation after flexor tendon repair have not yet been established. The aim of this pilot study was to assess the feasibility of amniotic membrane allograft as a mechanical barrier to decrease adhesion formation. METHODS: Ten patients having flexor tendon injuries were planned to be recruited to the pilot study. The operative treatment consisted of tendon repair and fixation of amniotic membrane allograft around the repaired tendon...
March 29, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28355741/-mri-of-the-finger-ligament-and-tendon-injuries-imaging-technique-and-clinical-application
#13
Y X Li, W Ye, R J Bai, H L Zhan, Y Liu, Z H Qian, H Zhang
Objective: To explore the MRI technique and the clinical application in ligament and tendons of fingers. Methods: The study was reviewed and approved by an institutional review board of hospital.A total of 20 normal volunteers and 50 patients from Beijing Jishuitan Hospital between May 2012 and May 2015 with finger injuries were chosen to undergo magnetic resonance examination by using Achieva 3.0 T MR produced by Philips.Scanning from coronal, sagittal and axial view in T(1)-weighted and proton fat saturation sequence (PD-FS), choosing suitable parameters, in order to get clear images of finger tendons and ligaments...
March 21, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28248892/a-repeated-carpal-tunnel-syndrome-due-to-tophaceous-gout-in-flexor-tendon-a-case-report
#14
Hui Lu, Qiang Chen, Hui Shen
RATIONALE: Gouty tophi is a rare cause of CTS. We first report a unique case of repeated CTS with gouty tophi in flexor tendon. In the previous literature, the symptoms cases of CTS were gradually increased. PATIENT CONCERNS: We report a 44-year-old male porter presented with mass on his left distal forearm combined a repeated carpal tunnel syndrome for 5 years. He felt numbness in fingers and his left palmar. The CTS symptoms had been eased through rest and dugs medication...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28205485/asymptomatic-flexor-tendon-damages-after-volar-locking-plate-fixation-of-distal-radius-fractures
#15
Susumu Tokunaga, Yoshihiro Abe
BACKGROUND: To investigate asymptomatic flexor tendon damages after volar locking plate fixation of distal radius fractures in 32 wrists of 32 patients with distal radius fractures fixed using two plate types. Sixteen patients received the Acu-Loc volar distal radius plate, and the remaining 16 patients received the Aptus distal radius correction plate. METHODS: The flexor pollicis longus (FPL) tendon and flexor digitorum profundus were evaluated according to intraoperative findings at plate removal...
March 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28205479/finger-trauma-due-to-surfing-a-case-series-and-analysis-of-fracture-patterns
#16
A C J Ruijs, L C Langenberg, J Rezzouk
BACKGROUND: The purpose of this study is to research the type of lesions to the hand and fingers in the sport of surfing. METHODS: All surfing related hand injuries reported to our hospital between January 2008 and September 2015 were analyzed. RESULTS: Thirty-seven patient files held a clear description of a trauma related to the surf sport. We found three finger sprains, five wounds needing suture, including one digital nerve lesion and one ring finger with flexor tendon injury, three fingertip amputations and twenty-six digital fractures...
March 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28196433/outcomes-of-the-six-strand-m-tang-repair-for-zone-2-primary-flexor-tendon-repair-in-54-fingers
#17
X Zhou, X R Li, J Qing, X F Jia, J Chen
We repaired complete divisions of flexor tendons in zone 2 in 54 fingers using a six-strand core M-Tang repair method. Partial active digital motion started with early passive digital motion carried out first in the first 3-4 weeks after surgery and full range of active motion in later weeks. The patients were followed for 4-27 months. According to Strickland criteria or Tang criteria, 24 (83%) had excellent or good, four fair and one poor results in 28 fingers with follow-up of more than one year. In the other 25 fingers which were followed for less than 12 months, 19 (76%) had excellent and good, four fair and two poor results...
February 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28193099/outcomes-of-grafting-intrasynovial-tendons-of-the-toes-to-the-hands-in-10-patients-a-preliminary-report
#18
H Ohi, S Uchiyama, T Kanda, M Mukoda, M Hayashi, H Kato
Ten patients had intrasynovial tendon grafting harvested from the toes for secondary flexor tendon reconstruction in nine fingers and one thumb in our institutes from 2009 to 2014. These patients were followed for a mean of 15 (range: 8-36) months. The ranges of total active motion of the proximal and distal interphalangeal joints of these nine fingers were 143° (range: 108-175°) and of the metacarpophalangeal and interphalangeal joints of one thumb were 110°. In conclusion, this technique is feasible and gives a good result when successful but with a high complication rate...
February 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28157716/compact-and-low-cost-humanoid-hand-powered-by-nylon-artificial-muscles
#19
Lianjun Wu, Monica Jung de Andrade, Lokesh Kumar Saharan, Richard Steven Rome, Ray H Baughman, Yonas Tadesse
This paper focuses on design, fabrication and characterization of a biomimetic, compact, low-cost and lightweight 3D printed humanoid hand (TCP Hand) that is actuated by twisted and coiled polymeric (TCP) artificial muscles. The TCP muscles were recently introduced and provided unprecedented strain, mechanical work, and lifecycle (Haines et al 2014 Science 343 868-72). The five-fingered humanoid hand is under-actuated and has 16 degrees of freedom (DOF) in total (15 for fingers and 1 at the palm). In the under-actuated hand designs, a single actuator provides coupled motions at the phalanges of each finger...
February 3, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28094764/neuromorphic-meets-neuromechanics-part-ii-the-role-of-fusimotor-drive
#20
Kian Jalaleddini, Chuanxin Minos Niu, Suraj Chakravarthi Raja, Won Joon Sohn, Gerald E Loeb, Terence D Sanger, Francisco J Valero-Cuevas
OBJECTIVE: We studied the fundamentals of muscle afferentation by building a Neuro-mechano-morphic system actuating a cadaveric finger. This system is a faithful implementation of the stretch reflex circuitry. It allowed the systematic exploration of the effects of different fusimotor drives to the muscle spindle on the closed-loop stretch reflex response. APPROACH: As in Part I of this work, sensory neurons conveyed proprioceptive information from muscle spindles (with static and dynamic fusimotor drive) to populations of α-motor neurons (with recruitment and rate coding properties)...
April 2017: Journal of Neural Engineering
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