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Finger flexor tendon

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https://www.readbyqxmd.com/read/28453343/acute-isolated-flexor-tendon-laceration-associated-with-a-distal-radius-fracture
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
https://www.readbyqxmd.com/read/28078364/-ligament-injuries-of-fingers-and-thumbs
#14
R Schmitt
Degenerative and traumatic ligament lesions of the carpometacarpal joints frequently occur at the thumb ray, whereas the carpometacarpal amphiarthrosis of other finger rays are rarely affected. The metacarpophalangeal and interphalangeal joints of the thumb and fingers are stabilized by bilaterally running collateral ligaments and palmar plates. At the base of the metacarpophalangeal joints, several ligaments of the extensor hoods guide the extensor tendons and coordinate the fine motoric skills of phalangeal flexing and extending...
January 2017: Der Radiologe
https://www.readbyqxmd.com/read/28072735/localized-type-volkmann-s-contracture-treated-with-tendon-transfer-and-tension-reduced-early-mobilization-a-case-report
#15
Yoshio Kaji, Osamu Nakamura, Konosuke Yamaguchi, Sachiko Tobiume, Tetsuji Yamamoto
RATIONALE: For localized type Volkmann's contracture, in which degeneration of the flexor digitorum profundus (FDP) muscle to one or two fingers and restriction of finger extension occur, dissection or excision of the affected muscle is usually recommended. However, these surgical procedures need relatively wide exposure of the muscle, because the FDP muscle is in the deep portion of the forearm. PATIENT CONCERNS: In this report, the case of a 35-year-old woman with localized type Volkmann's contracture is presented...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28067854/quantitative-assessment-of-first-annular-pulley-and-adjacent-tissues-using-high-frequency-ultrasound
#16
Yi-Hsun Lin, Tai-Hua Yang, Shyh-Hau Wang, Fong-Chin Su
Due to a lack of appropriate image resolution, most ultrasound scanners are unable to sensitively discern the pulley tissues. To extensively investigate the properties of the A1 pulley system and the surrounding tissues for assessing trigger finger, a 30 MHz ultrasound system was implemented to perform in vitro experiments using the hypodermis, A1 pulley, and superficial digital flexor tendon (SDFT) dissected from cadavers. Ultrasound signals were acquired from both the transverse and sagittal planes of each tissue sample...
January 7, 2017: Sensors
https://www.readbyqxmd.com/read/28050355/a-rare-case-of-anomalous-origin-of-first-lumbrical-from-the-tendon-of-flexor-digitorum-superficialis-to-index-finger
#17
S Trivedi, B C Satapathy, M Rathore, M B Sinha
Human hand is involved in variety of precision work which requires a combined effort of forearm muscles as well as intrinsic muscles of hand. Lumbricals along with interossei muscles connect the tendons of flexor and extensor muscles and thus play a key role in the characteristic movements of human hands. Lumbricals originate from long flexor tendon and is inserted into dorsal digital expansion. Any variation in the attachment of these muscles can lead to deviation from the normal actions of the fingers and their proximal extension into carpal tunnel and might lead to carpal tunnel syndrome...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28027238/free-functioning-gracilis-muscle-transfer-for-elbow-flexion-reconstruction-after-traumatic-adult-brachial-pan-plexus-injury-where-is-the-optimal-distal-tendon-attachment-for-elbow-flexion
#18
Andrés A Maldonado, Santiago Romero-Brufau, Michelle F Kircher, Robert J Spinner, Allen T Bishop, Alexander Y Shin
BACKGROUND: Reconstruction after pan-plexus root avulsions often includes gracilis free functioning muscle transfer. For elbow flexion reconstruction, the free functioning muscle transfer distal tendon is inserted into the biceps tendon or more distally (i.e., flexor digitorum profundus/flexor pollicis longus tendons) for combined elbow and finger flexion; the theoretical drawback of the latter approach is weaker elbow flexion. The authors compared elbow flexion strength with a biceps tendon versus a flexor digitorum profundus/flexor pollicis longus tendon attachment to determine which insertion point resulted in better elbow flexion...
January 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28026732/-spontaneous-tendon-ruptures-in-the-rheumatoid-hand
#19
REVIEW
J Pech, D Veigl, M Vlček
A spontaneous tendon rupture is a direct consequence of rheumatoid inflammation and can appear without any noticeable impact, often during sleep. The patient then presents with inability to flex or extend metacarpophalageal or interphalangeal joints. Multiple ruptures resulting in impaired function of several fingers can also occur and markedly limit the hand's grip strength. A tear may arise from either mechanical injury to the tendon along its course over bone or connective tissues, or by biochemical action of lysosomal enzymes, released during the inflammation process, on the connective tissue of the tendon...
2016: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28005235/examination-of-the-applicability-of-the-disabilities-of-the-arm-shoulder-and-hand-dash-questionnaire-to-patients-with-hand-injuries-and-diseases-using-rasch-analysis
#20
Kathrin Braitmayer, Caroline Dereskewitz, Cornelia Oberhauser, Klaus-Dieter Rudolf, Michaela Coenen
BACKGROUND: The Disabilities of the Arm, Shoulder and Hand (DASH) Questionnaire is the most commonly applied patient-reported outcome measure used to assess disability and functioning in clinical research and practice for patients with injuries and diseases of the upper extremities. The objective of this study was to assess whether the DASH is a valid and reliable questionnaire to measure disability and functioning in patients with hand injuries and diseases using Rasch analysis. METHODS: We performed a psychometric study using data derived from two multicentre studies carried out to develop the International Classification of Functioning, Disability and Health (ICF) Core Sets for Hand Conditions...
December 22, 2016: Patient
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