Anatomic variation of the innervation of the flexor digitorum profundus muscle and its clinical implications

2009 ◽  
Vol 39 (4) ◽  
pp. 498-502 ◽  
Author(s):  
Chang-Seok Oh ◽  
Hyung-Sun Won ◽  
Kyu-Seok Lee ◽  
In-Hyuk Chung ◽  
Seung Min Kim
Keyword(s):  
Anatomic Variation ◽  
Flexor Digitorum Profundus ◽  
Clinical Implications ◽  
Flexor Digitorum ◽  
Flexor Digitorum Profundus Muscle

Evolutionary adaptations in the flexor digitorum profundus muscle in Tamandua mexicana (Xenarthra, Myrmecophagidae)

2020 ◽  
Author(s):  
Juan Fernando Vélez‐García ◽  
Aura Cristina Arbeláez‐Quiñones ◽  
Karoll Dayanna Montealegre‐Hurtado
Keyword(s):  
Flexor Digitorum Profundus ◽  
Flexor Digitorum ◽  
Flexor Digitorum Profundus Muscle ◽  
Tamandua Mexicana

scholarly journals Anatomic Variation of the Median Nerve Associated with an Anomalous Muscle of the Forearm

Folia Medica ◽  
2017 ◽  
Vol 59 (1) ◽  
pp. 106-109 ◽  
Author(s):  
Atoni Dogood Atoni ◽  
Charles Aidemise Oyinbo
Keyword(s):  
Median Nerve ◽  
Anatomic Variation ◽  
Anatomical Variations ◽  
Clinical Situation ◽  
Flexor Digitorum Profundus ◽  
Anomalous Muscle ◽  
Clinical Presentations ◽  
Male Cadaver ◽  
The Right ◽  
Flexor Digitorum

Abstract Documented anatomical variations are important not only for the study of the subject of anatomy, but also in clinical situation. This knowledge would aid surgeons in planning a preoperative strategy for surgical procedures and reconstructive surgery. The right forearm of a 35-year-old embalmed male cadaver present a splitting of the median nerve in the proximal 1/3 of the forearm to form medial and lateral divisions that accommodate an anomalous muscle. The split median nerve reunites at the distal 1/3 and continues as a single nerve. The anomalous muscle arises by muscle fibers from flexor digitorum superficialis and inserted by tendon into flexor digitorum profundus. There was no such variation in the left forearm. The knowledge of such anatomical variations is important to clinicians and surgeons in interpreting atypical clinical presentations and avoiding unusual injury during surgery.

Congenital Shortening of the Flexor Digitorum Profundus Muscle

2007 ◽  
Vol 32 (2) ◽  
pp. 168-171 ◽  
Author(s):  
Takehiko Takagi ◽  
Shinichiro Takayama ◽  
Hiroyasu Ikegami ◽  
Toshiyasu Nakamura
Keyword(s):  
Flexor Digitorum Profundus ◽  
Flexor Digitorum ◽  
Flexor Digitorum Profundus Muscle

Electromyographs of the flexor digitorum profundus muscle are useful for the diagnosis of inclusion body myositis

2012 ◽  
Vol 46 (2) ◽  
pp. 181-186 ◽  
Author(s):  
Keiichi Hokkoku ◽  
Masahiro Sonoo ◽  
Mana Higashihara ◽  
Erik Stålberg ◽  
Teruo Shimizu
Keyword(s):  
Inclusion Body ◽  
Inclusion Body Myositis ◽  
Flexor Digitorum Profundus ◽  
Flexor Digitorum ◽  
Flexor Digitorum Profundus Muscle

Short-Term Synchronization Between Motor Units in Different Functional Subdivisions of the Human Flexor Digitorum Profundus Muscle

2004 ◽  
Vol 92 (2) ◽  
pp. 734-742 ◽  
Author(s):  
Karen T. Reilly ◽  
Michael A. Nordstrom ◽  
Marc H. Schieber
Keyword(s):  
Motor Units ◽  
Flexor Digitorum Profundus ◽  
Short Term ◽  
Common Input ◽  
Limited Ability ◽  
Motoneuron Pool ◽  
Flexor Digitorum ◽  
Human Nervous System ◽  
Central Factors ◽  
Flexor Digitorum Profundus Muscle

The ability to independently move the digits is limited by peripheral as well as central factors. A central limitation to independent finger movements might arise from the inability of the human nervous system to activate motor units (MUs) that exert force on one finger without also activating MUs that exert force on adjacent fingers. Short-term synchronization between MU pairs is thought to be the result of the two motoneurons receiving common input from last-order neuronal projections. The human flexor digitorum profundus (FDP) muscle contains four subdivisions, one for each of the fingers. We hypothesized that the distribution of MU synchrony within and between subdivisions of FDP might parallel the ability to selectively activate different functional subdivisions within FDP, and the ability to flex one digit independently of another. We found that the degree of MU synchrony indeed was not uniform among the different functional subdivisions of FDP; MUs acting on ulnar digits (d5, d4) were more synchronized than MUs acting on radial digits (d2, d3). Furthermore, synchrony was observed between MU pairs where each unit acted on a different digit and was highest when both units of a pair acted on the least-independent digits (d4, d5). This indicates that the CNS does not exert completely independent control over the different functional subdivisions of FDP. The strength of synchrony appears related to the inability to produce completely independent forces or movements with the digits. These observations reflect widespread divergence of last-order inputs within the FDP motoneuron pool, and we suggest that the organization of the CNS drive to this muscle contributes to the limited ability of humans to flex one digit in isolation from other digits.

Variations in Innervation of the Flexor Digitorum Profundus Muscle

1999 ◽  
Vol 24 (4) ◽  
pp. 700-703 ◽  
Author(s):  
Niloy Bhadra ◽  
Michael W. Keith ◽  
P. Hunter Peckham
Keyword(s):  
Flexor Digitorum Profundus ◽  
Flexor Digitorum ◽  
Flexor Digitorum Profundus Muscle
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