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Finger flexor tendon

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https://www.readbyqxmd.com/read/28205485/asymptomatic-flexor-tendon-damages-after-volar-locking-plate-fixation-of-distal-radius-fractures
#1
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
#2
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
#3
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...
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
#4
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
#5
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
#6
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)...
January 17, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28078364/-ligament-injuries-of-fingers-and-thumbs
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
https://www.readbyqxmd.com/read/27975032/flexor-tendon-repair-postoperative-rehabilitation-the-saint-john-protocol
#14
Amanda Higgins, Donald H Lalonde
The Saint John Protocol describes a rehabilitation program of up to half a fist of protected true active finger flexion beginning 3 to 5 days after flexor tendon repair. We no longer use full fist place and hold. We illustrate with film and text the reasons for these changes.
November 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27955967/digital-necrosis-after-lidocaine-and-epinephrine-injection-in-the-flexor-tendon-sheath-without-phentolamine-rescue
#15
Jacques X Zhang, Jason Gray, Donald H Lalonde, Nicholas Carr
The literature generally supports the safety of epinephrine injection in the digits, but recent case reports describe ischemic adverse events associated with the use of lidocaine and epinephrine in which phentolamine rescue was not performed. We present a case of finger necrosis and subsequent amputation in a patient after 1% lidocaine with 1:100,000 epinephrine was injected in the fat and flexor sheaths in the palm for a 3-finger trigger release. Phentolamine rescue was not performed. All surgeons who use epinephrine in the finger should be prepared to reverse vasoconstriction with phentolamine rescue if there is persistently inadequate perfusion of the fingertip...
February 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/27904023/early-embryonic-development-of-long-tendons-in-the-human-foot
#16
Masahito Yamamoto, Yasuhiro Shiraishi, Kei Kitamura, Zhe Wu Jin, Gen Murakami, Jose Francisco Rodríguez-Vázquez, Shin-Ichi Abe
To examine a common plantar tendinous plate for long flexors of the toe and fingers in human embryos, we observed sections of 10 embryos at 5-6 weeks (crown-rump length or CRL 15-21 mm). The heel or tuber of the calcaneus was underdeveloped in 3 embryos with CRL 15 mm and the talus appeared not to be piled up on the calcaneus but these two bones were arranged along the lateromedial axis. As reported in the hand, we demonstrated, in the deep side of tarsal bones, a common tendinous plate formed by a joining of the flexor halluces longus and flexor digitorum longus tendons...
2016: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/27900298/surgical-time-for-graft-preparation-using-different-suture-techniques
#17
Lawrence Camarda, Sebastian Giambartino, Michele Lauria, Michele Saporito, Vito Triolo, Michele D'Arienzo
BACKGROUND: The purpose of the present study was to compare the operative time for graft preparation using different techniques for graft suturing. MATERIAL AND METHODS: Flexor profundus tendons were harvested from fresh pig hind-leg trotters. Three different suture techniques were investigated: the Krackow stitch (K), the Whipstitch (W), and the Modified Finger-Trap suture (MFT). Tendons were sutured starting at 10 mm from the distal free end of the tendon. The suture configurations of the Krackow stitch and Whipstitch were completed with five suture throws...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27858573/multiple-nerve-and-tendon-transfers-a-new-strategy-for-restoring-hand-function-in-a-patient-with-c7-t1-brachial-plexus-avulsions
#18
Bin Xu, Zhen Dong, Cheng-Gang Zhang, Yu-Dong Gu
C7-T1 brachial plexus palsies result in a loss of finger motion and hand function. The authors have observed that finger flexion motion can be recovered after a brachialis motor branch transfer. However, finger flexion strength after this procedure merely corresponds to Medical Research Council Grades M2-M3, lowering the grip strength and practical value of the reconstructed hand. Therefore, they used 2 donor nerves and accomplished double nerve transfers for stronger finger flexion. In a patient with a C7-T1 brachial plexus injury, they transferred the pronator teres branch to the anterior interosseous nerve and the brachialis motor branch to the flexor digitorum superficialis branch for reinnervation of full finger flexors...
November 18, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27843364/radial-extracorporeal-shockwave-therapy-for-the-treatment-of-finger-tenosynovitis-trigger-digit
#19
Nikos Malliaropoulos, Rosanna Jury, Debasish Pyne, Nat Padhiar, Jennifer Turner, Vasileios Korakakis, Maria Meke, Heinz Lohrer
INTRODUCTION: Stenosing tenosynovitis that is characterized by the inability to flex the digit smoothly, usually leads to prolonged rehabilitation or surgery. STUDY DESIGN: This case series is a retrospective cohort study. PURPOSE: The aim of this case series was to evaluate the effectiveness of radial extracorporeal shockwave therapy (rESWT) for the treatment of stenosing tenosynovitis of the digital flexor tendon (trigger digit). METHODS: A retrospective analysis of 44 patients (49 fingers) treated with an individually adapted rESWT protocol was conducted...
2016: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/27836497/flexor-tendon-complications-in-comminuted-distal-radius-fractures-treated-with-anatomic-volar-rim-locking-plates
#20
Adnan Kara, Haluk Celik, Yunus Oc, Metin Uzun, Mehmet Erdil, Cihangir Tetik
OBJECTIVE: Anatomic volar rim locking plates are designed with the aim of treating intraarticular distal radius fractures. When used to treat comminuted distal radius fractures, these plates can damage the flexor tendons. In this study, we sought to determine the radiological and functional results and rate of complications of these plates. METHODS: We retrospectively reviewed the records of 36 patients (28 males, 8 females; mean age: 46.4 years) with AO/OTA Type C2-C3 distal radius fractures treated with anatomic volar rim distal radius plates between January 2011 and December 2014...
December 2016: Acta Orthopaedica et Traumatologica Turcica
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