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https://www.readbyqxmd.com/read/29449159/agenesis-functional-deficiency-and-the-common-type-of-the-flexor-digitorum-superficialis-of-the-little-finger-a-meta-analysis
#1
K Yammine, M Erić
Agenesis, functional deficiency and the common type of the flexor digitorum superficialis of the little finger are reported in the literature to be highly variable with significant discrepancy between clinical and cadaveric frequencies. The aim of this systematic review was to generate overall clinical and cadaveric weighted frequencies, along with ancestry-based, side-based, sex-based and laterality-based frequencies. A systematic literature search identified 34 studies including 12,213 forearms/hands that met the inclusion criteria...
February 12, 2018: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/29445622/palmar-annular-ligament-desmotomy-in-horses-with-the-arthrex-centerline%C3%A2-an-ex-vivo-study
#2
Luca Lacitignola, Pasquale De Luca, Annarita Imperante, Simone Della Tommasa, Antonio Crovace
The aim of this study was to evaluate the use of a single-portal endoscopic desmotomy of the PAL with the use of Arthrex - Centerline™. Ten horse distal front limbs from horses free of PAL disease were prepared for tenoscopy of the digital flexor tendon sheath (DFTS). A dual-port endoscopic desmotomy with a hook knife was performed in 5 specimens (Group A) and single port Arthrex-Centerline™ Desmotomy was performed in another 5 specimens (Group B). The performing time, judgments of the surgeon, number of blade passages, and gross anatomy were evaluated...
2018: Open Veterinary Journal
https://www.readbyqxmd.com/read/29440951/double-whip-stitch-for-free-graft-femoral-fixation-in-acl-reconstruction-experimental-study-on-porcine-model
#3
Cristian Tudor Buescu, Cristian Mircea Dudescu, Sergiu Caterev, Dan Gheorghe Osvald Lucaciu
Background and aims: Using free quadriceps tendon graft for anterior cruciate ligament (ACL) reconstruction has become more popular in the last years due to the low morbidity at the harvest site and biomechanical and structural properties similar to other types of graft (hamstring and patellar tendons). As long as the tibial tunnel fixation with interference screws is considered the standard fixation, femoral fixation is still an open subject. Even though the most common type of femoral tunnel fixation are the cortical suspension devices, the type of suture used for tying the graft to the loop is still evaluated and discussed...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29439365/adaptive-motor-cortex-plasticity-following-grip-reconstruction-in-individuals-with-tetraplegia
#4
Lina Bunketorp Käll, Robert J Cooper, Johanna Wangdell, Jan Fridén, Malin Björnsdotter
BACKGROUND: Tendon transfer is a surgical technique for restoring upper limb motor control in patients with cervical spinal cord injuries (SCI), and offers a rare window into cortical neuroplasticity following regained arm and hand function. OBJECTIVE: Here, we aimed to examine neuroplasticity mechanisms related to re-established voluntary motor control of thumb flexion following tendon transfer. METHODS: We used functional Magnetic Resonance Imaging (fMRI) to test the hypothesis that restored limb control following tendon transfer is mediated by activation of that limb's area of the primary motor cortex...
2018: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/29437201/variations-during-ageing-in-the-three-dimensional-anatomical-arrangement-of-fascicles-within-the-equine-superficial-digital-flexor-tendon
#5
O J Ali, E J Comerford, P D Clegg, E G Canty-Laird
BiTendons are constructed from collagenous fascicles separated by endotenon/interfascicular matrix (IFM). Tendons may be specialised for precision movement or to store energy during locomotion and for the latter the elasticity of the endotenon/IFM is particularly important. The equine superficial digital flexor tendon (SDFT) is a dedicated energy-storing tendon with a similar function to the human Achilles tendon. Classical anatomical descriptions portray fascicles as longitudinally arranged distinct anatomical structures...
February 13, 2018: European Cells & Materials
https://www.readbyqxmd.com/read/29429014/intrasynovial-spindle-cell-lipoma-of-the-deep-flexor-of-the-middle-finger-causing-intermittent-carpal-tunnel-syndrome-case-report-and-review-of-the-literature
#6
REVIEW
A Vidoni, M Shrivastava, Rajesh Botchu
Carpal tunnel syndrome (CTS) represents the most common entrapment neuropathy of the upper extremity. Intermittent CTS has been reported in the surgical literature and usually, related to masses associated to flexor tendons. We describe a patient with an intrasynovial lipoma involving the deep flexor of the middle finger causing intermittent CTS and snapping on flexion-extension.
February 10, 2018: Journal of Ultrasound
https://www.readbyqxmd.com/read/29425717/localized-delivery-of-mirnas-targets-cyclooxygenases-and-reduces-flexor-tendon-adhesions
#7
Youlang Zhou, Qianqian Yang, Yingying Yan, Changlai Zhu, Luzhong Zhang, Jin Bo Tang
The formation of adhesions during healing of an injured tendon remains a difficult problem in clinical practice. Local anti-inflammation gene delivery provides high local gene concentration, reduces the inflammatory response of the injured tendon microenvironment, and decreases systemic side effects to enhance in vivo efficacy. In this study, we designed a novel local sustained gene delivery system by using cyclooxygenase (COX-1 and COX-2)-engineered miRNA plasmid/nanoparticles embedded in hyaluronic acid (HA) hydrogel to reduce flexor tendon adhesions...
February 6, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29424966/the-effects-of-bi-functional-anti-adhesion-scaffolds-on-flexor-tendon-healing-in-a-rabbit-model
#8
Janice C Y Liao, Min He, Aaron W T Gan, Feng Wen, Lay Poh Tan, Alphonsus K S Chong
Progressive tendon adhesion is a major challenge in flexor tendon repair. The authors developed a bifunctional anti-adhesion scaffold and hypothesized that its application would reduce adhesion formation and deliver mesenchymal stem cells (MSCs) to enhance tendon healing. The scaffold was fabricated by an electrospinning machine before surface modification. The flexor tendons of 29 New Zealand rabbits underwent surgical repair and randomized to control, scaffold and scaffold loaded with MSC group. At 3 and 8 weeks post-surgery, range of motion (ROM), biomechanical properties, and histology were examined...
February 9, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29423702/linburg-comstock-variation-histoanatomy-and-classification-of-the-connection-between-flexor-pollicis-longus-and-flexor-digitorum-profundus-to-the-index-finger
#9
Laphatrada Yurasakpong, Krai Meemon, Athikhun Suwannakhan
PURPOSE: The aim of the study was to investigate the anatomy and histology of Linburg-Comstock variation, or the anomalous connection between flexor pollicis longus and flexor digitorum profundus to the index finger, in Thai population. METHODS: One hundred and thirty cadaveric upper limbs were dissected. Skin and superficial fascia on the anterior distal forearm and hand were removed. The tendons of the flexor pollicis longus and flexor digitorum profundus to the index finger were identified for the possible occurrence of the intertendinous connection...
February 8, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29421069/technique-of-dynamic-flexor-digitorum-superficialis-transfer-to-lateral-bands-for-proximal-interphalangeal-joint-deformity-correction-in-severe-dupuytren-disease
#10
REVIEW
Michael J Schreck, Hayden S Holbrook, L Andrew Koman
Pseudo-boutonniere deformity is an uncommon complication from long-standing proximal interphalangeal (PIP) joint contracture in Dupuytren disease. Prolonged flexion contracture of the PIP joint can lead to central slip attenuation and resultant imbalances in the extensor mechanism. We present a technique of flexor digitorum superficialis (FDS) tendon transfer to the lateral bands to correct pseudo-boutonniere deformity at the time of palmar fasciectomy for the treatment of Dupuytren disease. The FDS tendon is transferred from volar to dorsal through the lumbrical canal and sutured into the dorsally mobilized lateral bands...
February 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29418119/leg-muscle-architecture-in-primates-and-its-correlation-with-locomotion-patterns
#11
Damiano Marchi, Carissa L Leischner, Francisco Pastor, Adam Hartstone-Rose
Bone biomechanical studies indicate that leg bone structure can be related to different locomotor patterns. The osteological correlates of extant primates' locomotion patterns and substrate use are important to consider when estimating corresponding behaviors of extinct primates. Here, we test if these same patterns are seen in the differences in leg muscular architecture. Muscle mass, fascicle lengths (FL), physiological cross-sectional area (PCSA), reduced PCSA (RPCSA) and tendon-to-muscle belly ratio were studied in 33 primate species (6 strepsirrhines, 14 platyrrhines and 13 catarrhines)...
March 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29413593/therapeutic-strategies-for-flexor-tendon-healing-by-nanoparticle-mediated-co-delivery-of-bfgf-and-vegfa-genes
#12
Qian Qian Yang, Yi Xiang Shao, Lu Zhong Zhang, You Lang Zhou
Tendon injuries are a common injury of musculocutaneous system. Due to the lack of sufficient cellularity and low growth factor activity, healing of disrupted digital flexor tendon is troublesome and the process is lengthy and ineffective. bFGF and VEGFA gene were proved to be responsible and critical for promoting tendon healing. How to continuously enhance expression of these genes is a challenge. In this study, we developed a combination therapeutic approach that corrects the fundamental problem underlying intrasynovial tendon healing with introduction of growth factor genes via non-viral vector nanoparticle...
January 27, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29409868/structure-and-collagen-crimp-patterns-of-functionally-distinct-equine-tendons-revealed-by-quantitative-polarised-light-microscopy-qplm
#13
Ewa M Spiesz, Chavaunne T Thorpe, Philipp J Thurner, Hazel R C Screen
Structure-function relationships in tendons are directly influenced by the arrangement of collagen fibres. However, the details of such arrangements in functionally distinct tendons remain obscure. This study demonstrates the use of quantitative polarised light microscopy (qPLM) to identify structural differences in two major tendon compartments at the mesoscale: fascicles and interfascicular matrix (IFM). It contrasts functionally distinct positional and energy storing tendons, and considers changes with age...
January 31, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29409426/ex-vivo-tendon-repair-augmented-with-bone-marrow-derived-mesenchymal-stem-cells-stimulated-with-myostatin-for-tenogenesis
#14
Wei Le, Andre Eu-Jin Cheah, Jeffrey Yao
BACKGROUND: To investigate the effect of myostatin (GDF-8) stimulation of bone marrow derived mesenchymal stem cells (BMSCs) on tenogenesis in the setting of tendon repair. GDF-8 has demonstrated the ability to augment tenogenesis and we sought to identify if this effect could lead to the focused differentiation of pluripotential stem cells down a tenocyte lineage ex vivo. METHODS: Cadaveric upper limb flexor tendons were harvested, decellularized and divided into 1 cm segments...
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29409425/a-median-nerve-anterior-transposition-procedure-for-multi-recurrent-hemodialysis-related-carpal-tunnel-syndrome
#15
Ichiro Okutsu, Ikki Hamanaka, Aya Yoshida
BACKGROUND: Some long-term hemodialysis patients suffer from multi-recurrent carpal tunnel syndrome because amyloid originating from β2-microglobulin continues to be deposited mainly in the flexor tendons, tendon sheaths and flexor retinaculum during maintenance hemodialysis. These amyloid deposits inside carpal canal (tunnel) tissues increase carpal canal pressure and this leads to compression of the median nerve. When multi-recurrent carpal tunnel syndrome occurs, previous operative scarring of soft tissue may prohibit further enlargement of the carpal canal even if any carpal canal decompression procedure is used...
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29409419/endoscopic-trigger-finger-release-surgical-technique
#16
Scott F M Duncan, Ryosuke Kakinoki, Ross Dunbar
Numerous surgical approaches have been described for treating patients suffering with stenosing tenosynovitis. The usual surgical descriptions differ mainly by the type of skin incision utilized. The goal of surgery is to completely release the A1 pulley, thereby allowing unimpeded motion of the flexor tendons. We describe a minimally invasive endoscopic technique to address this condition in the fingers.
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29409413/-silent-ruptures-of-the-flexor-digitorum-profundus-of-the-little-finger-due-to-pisotriquetral-arthroses
#17
Kazufumi Sano, Yosuke Akiyama, Satoru Ozeki
Asymptomatic pisotriquetral arthroses caused ruptures of the flexor digitorum profundus tendon of the little finger in 2 elderly patients. Ruptures occurred with unnoticeable onset, and bilateral ruptures separately occurred with interval of several years in one patient. The tendon was ruptured in zone IV with perforation of the gliding floor through which the degenerative pisiform was visible. The gliding floor was repaired followed with excision of the pisiform, and the ruptured tendon was then transferred to the profundus tendon of the ring finger...
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29409408/superficial-ulnar-artery-crossing-over-the-palmaris-longus-tendon-at-the-wrist-in-a-cadaver-a-case-report
#18
Kotaro Sato, Kenya Murakami, Yoshikuni Mimata, Yuki Kikuchi, Ryunosuke Oikawa, Minoru Doita
Superficial ulnar artery (SUA) is defined as arterial variation of an ulnar artery of high origin that lies superficially in the forearm. Because an SUA may be mistaken for a superficial vein, there is a risk of arterial damage. During routine dissection of the cadaver, we incidentally detected a case of unilateral SUA in the left arm. SUA arose from the axillary artery and descended superficial to the axillary artery and median nerve. At the wrist, the SUA crossed over palmaris longus (PL) tendon from the radial side to the ulnar side...
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29409407/complications-of-intramedullary-fixation-for-distal-radius-fractures-in-elderly-patients-a-retrospective-analysis-using-mckay-s-complication-checklist
#19
Takuma Wakasugi, Ritsuro Shirasaka, Toshiyuki Kawauchi, Koji Fujita, Atsushi Okawa
BACKGROUND: Intramedullary fixation for distal radius fractures is reported to be free of hardware irritation and less invasive than other fixation methods. Some specific complications associated with intramedullary fixation, such as radial nerve sensory neuritis, have been reported, but no study has focused on the complication rates of intramedullary fixation for distal radius fractures in the elderly population. Furthermore, no studies have analyzed common complications, such as carpal tunnel syndrome and flexor tenosynovitis including trigger finger, among patients with distal radius fractures treated by intramedullary fixation based on a comprehensive complication checklist...
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29409252/arthroscopic-approach-to-the-spring-calcaneonavicular-ligament
#20
T H Lui, C Y D Mak
BACKGROUND: This research studied the safety and efficacy of a new portal to the spring ligament. This portal is located just plantar to the insertion of the posterior tibial tendon and above the fibrous septum between the posterior tibial and the flexor digitorum longus tendons. METHODS: Twelve fresh frozen foot and ankle specimens were used. The distance between the accessory medial portal and the medial plantar nerve was measured. The relation between the medial plantar nerve and the spring ligament was studied...
March 8, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
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