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Flexor tendon tendonitis

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https://www.readbyqxmd.com/read/28331221/relationship-between-joint-torque-and-muscle-fascicle-shortening-at-various-joint-angles-and-intensities-in-the-plantar-flexors
#1
Atsuki Fukutani, Jun Misaki, Tadao Isaka
Because it is difficult to measure tendon length changes directly in humans, tendon length changes during dynamic movement have been evaluated indirectly from changes in muscle fascicle length and joint angle. The purpose of this study was to examine the validity of the indirect method. Twitch contractions of the ankle plantar flexors were evoked isometrically in eight subjects. Twitch contractions evoked by singlet, doublet, and triplet stimulations were conducted at dorsiflexion 20° (DF20), plantar flexion 0° (PF0), and plantar flexion 20° (PF20)...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28327586/cellular-preservation-of-musculoskeletal-specializations-in-the-cretaceous-bird-confuciusornis
#2
Baoyu Jiang, Tao Zhao, Sophie Regnault, Nicholas P Edwards, Simon C Kohn, Zhiheng Li, Roy A Wogelius, Michael J Benton, John R Hutchinson
The hindlimb of theropod dinosaurs changed appreciably in the lineage leading to extant birds, becoming more 'crouched' in association with changes to body shape and gait dynamics. This postural evolution included anatomical changes of the foot and ankle, altering the moment arms and control of the muscles that manipulated the tarsometatarsus and digits, but the timing of these changes is unknown. Here, we report cellular-level preservation of tendon- and cartilage-like tissues from the lower hindlimb of Early Cretaceous Confuciusornis...
March 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/28325701/evaluation-of-flexor-pollicis-longus-tendon-attrition-using-color-doppler-imaging-after-volar-plate-fixation-for-distal-radius-fracture
#3
Yoshitaka Tanaka, Hiroyuki Gotani, Koichi Yano, Kosuke Sasaki, Yoshitaka Hamada
PURPOSE: Early diagnosis of attritional wear of the flexor pollicis longus (FPL) tendon is essential in preventing subsequent tendon rupture. There are currently few objective methods of assessing FPL attrition. We hypothesized that color Doppler imaging could visibly detect FPL tendon attrition, and analyzed our results. METHODS: We evaluated ultrasound imaging of the contact between the FPL tendon and a volar locking plate using the real-time B-mode and Doppler waveforms of the FPL tendon using the continuous Doppler wave mode in 40 patients who underwent fixation of the distal volar locking plate for distal radius fracture...
March 18, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28324151/higher-hamstring-to-quadriceps-isokinetic-strength-ratio-during-the-first-post-operative-months-in-patients-with-quadriceps-tendon-compared-to-hamstring-tendon-graft-following-acl-reconstruction
#4
Felix Fischer, Christian Fink, Elmar Herbst, Christian Hoser, Caroline Hepperger, Cornelia Blank, Peter Gföller
PURPOSE: The aim of this study was to compare isokinetic quadriceps and hamstring muscle strength in patients following anterior cruciate ligament (ACL) reconstruction who received either hamstring (HT) or quadriceps (QT) tendon autografts at two time intervals within the first year after surgery. METHODS: One hundred twenty-four patients, 81 males (age 22.0 ± 6.2 years) and 43 females (age 20.9 ± 8.7 years), participated in this study. ACL reconstruction was performed with either quadriceps tendon autografts (QT; n = 61) or hamstring tendon autografts (HT; n = 63)...
March 21, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28298055/the-effect-of-graft-pretensioning-on-bone-tunnel-diameter-and-bone-formation-after-anterior-cruciate-ligament-reconstruction-in-a-rat-model
#5
Jian-Chun Zong, Richard Ma, Hongsheng Wang, Guang-Ting Cong, Amir Lebaschi, Xiang-Hua Deng, Scott A Rodeo
BACKGROUND: Moderate graft pretensioning in anterior cruciate ligament (ACL) reconstruction is paramount to restore knee stability and normalize knee kinematics. However, little is known about the effect of graft pretensioning on graft-to-bone healing after ACL reconstruction. HYPOTHESIS: Moderate graft pretensioning will improve bone formation within the bone tunnel after ACL reconstruction, resulting in superior load to failure. STUDY DESIGN: Controlled laboratory study...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28291150/acquired-constriction-ring-a-case-of-rubber-band-syndrome
#6
Rahel Meier, Luzian Haug, Carsten Surke, Lukas Mathys, Esther Vögelin
Rubber band syndrome is a rare entity seen in younger children mainly in communities where rubber bands are worn around the wrist for decorative purposes. When the band is worn for a long duration, it burrows through the skin and soft tissues resulting in distal edema, loss of function, and even damage to the neurovascular structures. These symptoms are difficult to relate to this rare but typical condition. We report a case of a 2¾-year-old girl with the history of a linear circumferential scar at the right wrist combined with the limited use of a swollen hand for several weeks...
March 13, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28289627/tendon-transfer-in-congenital-deficiency-of-flexor-pollicis-longus
#7
Masoud Yavari, Ramin Farzam, Azade Riyahi
No abstract text is available yet for this article.
January 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/28286624/a-biomechanical-comparison-of-4-strand-and-5-strand-anterior-cruciate-ligament-graft-constructs
#8
Matthew L Broadhead, Animesh A Singla, Nicky Bertollo, David Broe, William R Walsh
Hamstring tendon autografts are used for reconstruction of the anterior cruciate ligament. This study tested the hypothesis that a 5-strand hamstring autograft construct is superior in strength to a 4-strand construct. Four-strand and 5-strand tendon grafts constructs were prepared from ovine flexor tendons and then tested in a uniaxial electromechanical load system with suspensory fixation. The 4-strand and 5-strand constructs were pre-conditioned, stress-relaxed and loaded to ultimate failure. Stress-relaxation, stiffness and ultimate load were compared using a one-way ANOVA...
February 20, 2017: Orthopedic Reviews
https://www.readbyqxmd.com/read/28282537/a-large-solitary-fibroma-of-the-deep-compartment-of-the-sole
#9
T H Lui
A 50-year-old lady presented with a right foot mass and pain for 1year. Magnetic resonance imaging showed a 3.9×3.2×5cm mass on plantar side of the forefoot deep to the major flexor tendons and plantar aponeurosis and inferior to 1st-4th metatarsals. The mass extended dorsally through the intermetatarsal space to the foot dorsum. Ultrasound guided biopsy was performed, which confirmed it was a fibroma. This case was further complicated by pathological fracture of the 3rd metatarsal. It was resected through a dorsal incision and surgical dislocation of the 2nd and 3rd tarsometatarsal joints...
December 7, 2016: Foot
https://www.readbyqxmd.com/read/28282504/soleus-atrophy-is-common-after-the-nonsurgical-treatment-of-acute-achilles-tendon-ruptures
#10
Juuso Heikkinen, Iikka Lantto, Tapio Flinkkila, Pasi Ohtonen, Jaakko Niinimaki, Pertti Siira, Vesa Laine, Juhana Leppilahti
BACKGROUND: It remains controversial whether nonsurgical or surgical treatment provides better calf muscle strength recovery after an acute Achilles tendon rupture (ATR). Recent evidence has suggested that surgery might surpass nonsurgical treatment in restoring strength after an ATR. PURPOSE: To assess whether magnetic resonance imaging (MRI) findings could explain calf muscle strength deficits and the difference between nonsurgical and surgical treatments in restoring calf muscle strength...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28271939/bilateral-achilles-tendon-xanthomas-in-a-patient-with-cerebrotendinous-xanthomatosisa-case-report
#11
Mustafa Karakaplan, Emre Ergen, Gökay Görmeli, Mehmet Fatih Korkmaz, Nurzat Elmalı
Cerebrotendinous xanthomatosis is a rare, autosomal recessive, lipid storage disease with accumulation of cholestanol in most tissues, particularly in the Achilles tendons. We described a 23-year-old female patient who had progressive painfull swelling of both Achilles tendons due to cerebrotendinous xanthomatosis. We performed surgery on both-side Achilles tendon tumors. Wide degenerative areas of the tendons were resected, and the flexor hallucis longus tendon was harvested and transferred to reconstruct motion function...
January 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28265768/changes-in-elbow-joint-s-musculo-articular-mechanical-properties-do-not-alter-reaching-related-action-perception-coupling
#12
Yannick Daviaux, Thibault Deschamps, Christophe Cornu
PURPOSE: Perception of action capabilities can be altered by changes in sensorimotor processes, as showed in previous works in populations dealing with regular and pathological sensorimotor deficits. Misestimating changes in performance ability could lead to risky behavior, injury, and/or reduced performance. However, the relationship between sensorimotor processes, the action-perception coupling, and the related anatomical structures is still a matter of debate. We investigated whether changes in the muscle-tendon system's mechanical properties experimentally induced by eccentric contractions could alter the action-perception coupling (APC) in a reaching-to-grasp task, in which the participants estimated the maximal distance they predicted that they would able to reach a glass...
March 6, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28259279/volar-anatomy-of-the-proximal-phalanx-implications-for-screw-length-selection-for-fixation-of-shaft-fractures
#13
P Barrett Honeycutt, Edward W Jernigan, Wayne A Rummings, Peter J Stern, Reid W Draeger
PURPOSE: To investigate the anatomy of the volar surface of the proximal phalanx of the hand, specifically the longitudinal groove running along the volar phalangeal shaft. METHODS: We measured skeletonized proximal phalanges from 10 embalmed human cadaver hands at 5 equidistant points along the shaft. The difference between the maximum dorsal-palmar thickness of the shaft and thickness measured from the center of the volar groove to the most dorsal aspect of the phalanx indicated the depth of the groove at each point...
March 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28257673/midsubstance-tendinopathy-surgical-management
#14
REVIEW
William T DeCarbo, Mark J Bullock
Noninsertional Achilles tendinopathy often responds to nonoperative treatment. When nonoperative treatment fails, the clinician must distinguish between paratendinopathy and noninsertional tendinopathy. In paratendinopathy, myofibroblasts synthesize collagen, causing adhesions, and the paratenon may be released or excised. If a core area of tendinopathy is identified on MRI, the area is excised longitudinally and repaired with a side-to-side suture. If greater than 50% of the tendon diameter is excised, the authors recommend a short flexor hallucis longus tendon transfer with an interference screw...
April 2017: Clinics in Podiatric Medicine and Surgery
https://www.readbyqxmd.com/read/28255483/stenosing-tenosynovitis-of-the-flexor-hallucis-longus-tendon-associated-with-the-plantar-capsular-accessory-ossicle-at-the-interphalangeal-joint-of-the-great-toe
#15
Song Ho Chang, Takumi Matsumoto, Masashi Naito, Sakae Tanaka
This report presents a case of stenosing tenosynovitis of the flexor hallucis longus tendon associated with the plantar capsular accessory ossicle at the interphalangeal joint of the great toe, which was confirmed by intraoperative observation and was successfully treated with surgical resection of the ossicle. As the plantar capsular accessory ossicle was not visible radiographically due to the lack of ossification, ultrasonography was helpful for diagnosing this disorder.
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28249790/free-functioning-gracilis-muscle-transfer-with-and-without-simultaneous-intercostal-nerve-transfer-to-musculocutaneous-nerve-for-restoration-of-elbow-flexion-after-traumatic-adult-brachial-pan-plexus-injury
#16
Andrés A Maldonado, Michelle F Kircher, Robert J Spinner, Allen T Bishop, Alexander Y Shin
PURPOSE: After complete 5-level root avulsion brachial plexus injury, the free-functioning muscle transfer (FFMT) and the intercostal nerve (ICN) to musculocutaneous nerve (MCN) transfer are 2 potential reconstructive options for restoration of elbow flexion. The aim of this study was to determine if the combination of the gracilis FFMT and the ICN to MCN transfer provides stronger elbow flexion compared with the gracilis FFMT alone. METHODS: Sixty-five patients who underwent the gracilis FFMT only (32 patients) or the gracilis FFMT in addition to the ICN to MCN transfer (33 patients) for elbow flexion after a pan-plexus injury were included...
February 26, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28248892/a-repeated-carpal-tunnel-syndrome-due-to-tophaceous-gout-in-flexor-tendon-a-case-report
#17
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/28246658/a-review-of-anatomical-placement-of-corticosteroid-injections-for-uncommon-hand-wrist-and-elbow-pathologies
#18
Gregory R Waryasz, Robert Tambone, Todd R Borenstein, Joseph A Gil, Manuel DaSilva
Corticosteroid injections are a common nonsurgical treatment of intersection syndrome, flexor carpi radialis tendonitis, flexor carpi ulnaris tendonitis, and medial epicondylitis. The benefits of corticosteroid injections for these conditions have been well studied and documented in the medical literature. Patients with less common upper extremity complaints usually first present to their primary care provider. A correct anatomical diagnosis will help with early definitive treatment, as the injection must be in the proper location for maximal benefit to the patient...
March 1, 2017: Rhode Island Medical Journal
https://www.readbyqxmd.com/read/28245736/digital-flexor-musculotendinous-contracture-in-two-devon-rex-cats
#19
Leonie K Thom, Roy R Pool, Richard Malik
Clinical summary: A 13-year-old, spayed Devon Rex with unilateral digital flexor musculotendinous contracture of the forelimb was treated by surgical tenotomy. The condition improved transiently, but recurred rapidly and became bilateral. Histopathologic analysis of necropsy tissues resulted in a morphologic diagnosis of fibromyositis of the antebrachial muscles causing contracture and flexural deformity of the carpi and phalanges of both thoracic limbs. A search for similar cases yielded the clinical notes of a second cat, a 10-year-old, spayed Devon Rex, also with bilateral disease...
March 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28242571/predictors-for-anterior-pelvic-tilt-following-surgical-correction-of-flexed-knee-gait-including-patellar-tendon-shortening-in-children-with-cerebral-palsy
#20
Harald Böhm, Matthias Hösl, Leonhard Döderlein
INTRODUCTION: Patellar tendon shortening procedure within single event multilevel surgeries was shown to improve crouch gait in Cerebral Palsy (CP) patients. However, one of the drawbacks associated to the correction of flexed knee gait may be increased pelvic anterior tilt with compensatory lumbar lordosis. RESEARCH QUESTION: Which CP patients are at risk for excessive anterior pelvic tilt following correction of flexed knee gait including patellar tendon shortening? METHODS: 32 patients with CP between 8 and 18 years GMFCS I&II were included...
February 21, 2017: Gait & Posture
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