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Flexor digitorum profundus

M Le Hanneur, A Walch, T Gerosa, A Grandjean, E Masmejean, T Lafosse
We aimed to assess the rate and type of postoperative motor deficits that might be encountered following elbow flexion reanimation using ulnar- and/or median-based side-to-end nerve transfers in patients with brachial plexus injuries. All patients who underwent elbow flexion reanimation between November 2015 and October 2017 at our facility by nerve transfer based on partial harvests of the median and/or ulnar nerves were included. Postoperative clinical assessment was conducted the day after surgery to identify motor deficits in the territory of the harvested nerves...
August 2, 2018: Hand Surgery and Rehabilitation
Marion Mühldorfer-Fodor, Angela Reger, Thomas Pillukat, Thomas Mittlmeier, Jörg van Schoonhoven, Karl-Josef Prommersberger
BACKGROUND: Due to the functional coupling of adjacent finger joints and the quadriga effect of the flexor digitorum profundus an influence of the grip pattern of the hand after fusion of a distal interphalangeal joint (DIPJ) is assumed. PATIENTS AND METHODS: Two patients with DIPJ II- fusion and 8 patients with DIPJ III- fusion due to a posttraumatic osteoarthritis, but without any other pathology of both hands were assessed on average 55 (17-121) months postoperatively by manugraphy...
June 2018: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
Karl-Friedrich Schüttler, Alexander Scharm, Thomas Stein, Thomas J Heyse, Michael Lohoff, Frank Sommer, Anja Spiess-Naumann, Turgay Efe
INTRODUCTION: Although there is increasing evidence for the successful use of local vancomycin applied by soaked compresses during ACL reconstruction, there are still little data on its microbiological and biomechanical effects. Furthermore, exact dosage of vancomycin with respect to tendon stability and microbiological effectivity is still unknown. MATERIALS AND METHODS: 63 porcine flexor digitorum profundus tendons were harvested under sterile conditions from fresh cadaver legs...
July 23, 2018: Archives of Orthopaedic and Trauma Surgery
Kristopher R Karvelas, Alyson L Hommel, Michael S Cartwright, Francis O Walker, Lisa D Hobson-Webb
Ultrasound is a helpful tool for diagnosing neuromuscular disorders.1,2 Ultrasound of the forearm, specifically, is informative when evaluating inclusion body myositis (IBM). In IBM, the flexor digitorum profundus (FDP) demonstrates abnormalities when compared to the flexor carpi ulnaris (FCU) in a distinct pattern that differs from other inflammatory myopathies and amyotrophic lateral sclerosis (ALS).3 This has also been noted on MRI and in electrodiagnostic studies.4,5,6 We report a case in which a significant difference in echogenicity, but not atrophy, is noted in the FDP compared to the FCU in a patient with myotonic dystrophy type 1 (DM1)...
July 20, 2018: Muscle & Nerve
Naoto Matsunaga, Koji Kaneoka
This study investigated muscle synergy during smash shot in badminton and compared synergies of advanced players (more than 7 years experience) and beginner players (less than 3 years experience). The dominant hand of all players was the right side. Muscle activities were recorded on both sides of the rectus abdominis, external oblique (EO), internal oblique/transversus abdominis (IO/TrA), and erector spinae. Additionally, the right side of the biceps brachii, triceps brachii, flexor carpi radialis, flexor carpi ulnaris, and flexor digitorum profundus muscle activities were recorded...
2018: Applied Bionics and Biomechanics
Sara Edsfeldt, Martin Eklund, Monica Wiig
STUDY DESIGN: Observational cohort study. INTRODUCTION: Investigating prognostic factors using population-based data may be used to improve functional outcome after flexor tendon injury and repair. PURPOSE OF THE STUDY: The aim of this study is to investigate the effect of concomitant nerve transection, combined flexor digitorum profundus (FDP) and flexor digitorum superficialis (FDS) tendon transection and the age of the patient, on digital range of motion (ROM) more than 1 year after FDP tendon transection and repair in zone I and II...
July 5, 2018: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
Gabriel Halát, Lukas L Negrin, Ewald Unger, Thomas Koch, Johannes Streicher, Jochen Erhart, Patrick Platzer, Stefan Hajdu
The purpose of this study was to determine the biomechanical characteristics of an innovative surgical technique based on a tension banding principle using a suture anchor in the repair of bony avulsions of the flexor digitorum profundus tendon. After injury simulation in 45 fresh frozen distal phalanges from human cadavers, repair was performed with minifragment screws, interosseous sutures and the innovative technique (15 per group). All repairs were loaded for a total of 500 cycles. Subsequently the specimens were loaded to failure...
July 2, 2018: Scientific Reports
Chun Bi, Andrew R Thoreson, Chunfeng Zhao
Tendon or ligament reconstructions often use autologous or allogenic tendons from either extrasynovial or intrasynovial sources. Allograft tendons must be lyophilized for preservation before transplantation, a process which can impact mechanical properties of the graft. Reconstituted graft properties that are similar to native tendon are desirable. Although tensile and compressive properties of tendons have been investigated, there is a paucity of information describing flexural properties of tendon, which can impact the gliding resistance...
June 18, 2018: Journal of Biomechanics
Masato Ohara, Ryo Oda, Shogo Toyama, Yusei Katsuyama, Hiroyoshi Fujiwara, Toshikazu Kubo
INTRODUCTION: Closed flexor tendon rupture after a malunited distal radius fracture is rare and usually becomes apparent early after the fracture. Most cases are accompanied by a severe distal radio-ulnar joint capsule injury, wherein bone protrusion (as a spur) directly stresses the tendons. We experienced a nonspecific flexor tendon rupture associated with an old fracture and the presence of collagen disease. PRESENTATION OF CASE: A 63-year-old woman presented with delayed complete rupture of the flexor digitorum profundus (FDP) of the fifth digit...
2018: International Journal of Surgery Case Reports
Derek T Bernstein, Jamie J Alexander, Nancy J Petersen, Bradley S Lambert, Philip C Noble, David T Netscher
PURPOSE: To evaluate the impact of suture caliber and looped configurations on the integrity of 4-strand modified Kessler zone II flexor tendon repairs during progressive cyclic loading. METHODS: Seventy-two flexor digitorum profundus tendons from 18 fresh human cadaver hands were divided into 4 repair groups. Thirty-six matched tendons underwent repair using either a 4-0 looped or 4-0 single-stranded suture, and an additional 36 tendons underwent 3-0 looped or 3-0 single-stranded repairs...
June 8, 2018: Journal of Hand Surgery
Nathan Patrick, Kent Weinheimer, Michael Darowish
The avulsion of the flexor digitorum profundus from its insertion, or "jersey finger," is a relatively common injury. Numerous modifications have been made to the classification and treatment of this injury since its initial description. We describe a novel variation of the surgical management of jersey finger.
May 2018: American Journal of Orthopedics
Kun Hwang, Seung Jun Bang, Sook Hyun Chung
Purpose: The aim of this study was to review the innervation of the flexor digitorum profundus (FDP). Methods: In PubMed and Scopus, terms (Flexor digitorum profundus OR FDP) AND (innervation OR nerve) were used, resulting in 233 and 281 papers, respectively. After excluding 142 duplicates, 73 abstracts were reviewed. Forty-seven abstracts were excluded, 26 full papers were reviewed, and 17 papers were analyzed. Results: In most cases (97...
May 2018: Plastic Surgery
Luke J Heales, Kylie Tucker, Bill Vicenzino, Paul W Hodges, David A MacDonald
INTRODUCTION: Intramuscular electromyography electrodes targeting flexor digitorum profundus (FDP) are inserted via the anterior or medial aspect of the forearm. These two methods pose different risks to neurovascular structures which overly FDP. This study aimed to compare the insertion depth and consider advantages and limitations of two different techniques to insert intramuscular electrodes into FDP. METHODS: Using ultrasound imaging, neurovascular structures were identified along the path of FDP electrode insertion at the junction of the proximal and middle third of the ulna, bilaterally, in ten healthy individuals...
August 2018: Journal of Electromyography and Kinesiology
Jun Li, Liangjie Du, Hongwei Liu, Feng Gao, Lu Liu, Yun Guo, Chong Wang, Mingliang Yang, Jianjun Li, Youle Zhang
Objective: To explore the effectiveness of functional reconstruction of hand grasp and pinch by tendon transfers in patients with cervical spinal cord injury. Methods: Between July 2013 and January 2016, tendon transfer surgery were performed in 21 patients (41 hands) with cervical spinal injury that motion level was located at C 6 to reconstruct hand grasp and pinch function. There were 18 males and 3 females with a mean age of 42.3 years (range, 17-65 years). Nineteen patients were with complete spinal cord injury [American Spinal Injury Association (ASIA) grading A], 1 patient was with central cord syndrome whose bilateral hands were completely paralyzed and lower limbs were normal (ASIA grading D), and 1 patient was with cervical spondylotic myelopathy (AISA grading D)...
May 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
Halim Song, Jinu Kim, Sang-Pil Yoon
Although anatomical variations in the upper limb are frequent, coexistence of multiple combined variations is rare. During a routine educational dissection at Jeju National University Medical School, three muscular variations were found in a 75-year-old Korean male cadaver, in which a supraclavicular cephalic vein was also found in ipsilateral upper extremity during skinning (Go et al., 2017). Here we describe characteristics of the pectoralis quartus muscle, the supernumerary head of biceps brachii muscle and an accessory head of flexor digitorum profundus muscle, and discuss their coexistence from morphological and embryological points of view...
May 26, 2018: Folia Morphologica (Warsz)
Jemima Albayda, Lisa Christopher-Stine, Clifton O Bingham Iii, Julie J Paik, Eleni Tiniakou, Seth Billings, O Manny Uy, Philippe Burlina
OBJECTIVES: Imaging plays a role in myositis assessment by detecting muscle changes indicative of pathology. This study was conducted to determine the ultrasonographic pattern of muscle involvement in patients with inclusion body myositis (IBM) through an assessment of muscle echointensity. METHODS: Sixty-two individuals were consecutively studied, 18 with IBM, 16 with polymyositis or dermatomyositis and 28 normal controls. Standardised scans were completed bilaterally for the deltoids, biceps, flexor digitorum profundus (FDP), flexor carpi ulnaris, rectus femoris, tibialis anterior and gastrocnemius assessing for muscle echointensity changes...
May 8, 2018: Clinical and Experimental Rheumatology
Rong-Jie Bai, Hui-Bo Zhang, Hui-Li Zhan, Zhan-Hua Qian, Nai-Li Wang, Yue Liu, Wen-Ting Li, Yu-Ming Yin
Background: Hand injuries are very common in sports, such as skiing and ball sports. One of the major reasons causing hand and finger deformity is due to ligament and tendon injury. The aim of this study was to investigate if the high-resolution 3T magnetic resonance imaging (MRI) can demonstrate the complex anatomy of the fingers and thumb, especially the tendons and ligaments, and provide the accurate diagnosis of clinically important fingers and thumbs deformity due to ligamentous and tendinous injuries during sport activities...
May 5, 2018: Chinese Medical Journal
Yuk Wa Lee, Sai Chuen Fu, Tsui Yu Mok, Kai Ming Chan, Leung Kim Hung
Background: Hand flexor tendon injuries are compromised with tendon adhesion. Tendon adhesion forms between flexor tendon and tendon sheath, reduces the range of motion of fingers, and affects their function. Oxidative stress is increased in flexor tendon after injury and might play a role in tendon adhesion formation. Trolox (6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid), a water-soluble analog of vitamin E, is antioxidative. Trolox reduced oxidative stress and the expression of fibrotic cytokines in the bile gut ligation animal model...
July 2017: Journal of Orthopaedic Translation
Kotaro Sato, Kenya Murakami, Yoshikuni Mimata, Minoru Doita
This study assessed the comprehensive incidence of tendon rupture following volar locking plate (VLP) surgery for a large number of patients with distal radius fractures (DRFs) at multiple facilities in one prefecture, Japan. During the 4-year period, 2787 patients with DRFs underwent fixation using VLP. The overall incidence rates of rupture of the FPL, the extensor pollicis longus, the flexor digitorum profundus of the index finger, and the extensor digitorum communis were 0.35% (10 patients), 0.29% (8 patients), 0...
March 2018: Journal of Orthopaedics
Tugrul Bulut, Mesut Tahta, Tahir Ozturk, Eyup Cagatay Zengin, Cem Ozcan, Muhittin Sener
Background: Linburg-Comstock anomaly is typically defined as a tenosynovial interconnection between flexor pollicis longus and flexor digitorum profundus tendon of the second finger. There are several studies stating that the current anomaly is congenital or acquired. The aim of this study is to reveal whether overuse, which is mostly reported as an acquired etiologic factor, effective in development of the current anomaly. Methods: Three hundred thirteen medical secretaries who work with computer keyboard at least 6 hours a day were defined as study group...
November 2017: Plastic Surgery
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