scholarly journals Morphological Study Of Palmaris Longus Muscle

10.3823/2485 ◽  
2017 ◽  
Vol 10 ◽  
Author(s):  
Humberto Ferreira Arquez

Background: The palmaris longus is one of the most variable muscle in the human body, this variations are important not only for the anatomist but also radiologist, orthopaedic, plastic surgeons, clinicians, therapists. In view of this significance is performed this study with the purpose to determine the morphological variations of palmaris longus muscle. Methods and Findings: A total of 17 cadavers with different age groups were used for this study. The upper limbs region (34 sides) were dissected carefully and photographed in the Morphology Laboratory at the University of Pamplona. Of the 34 limbs studied, 30 showed normal morphology of the Palmaris longus muscle (PL) (88,2%); PL was absent in 3 subjects (8,85% of all examined forearm). Unilateral absence was found in 1 male subject (2,95% of all examined forearm); bilateral agenesis was found in 2 female subjects (5,9% of all examined forearm). Duplicated PL muscle was found in 1 male subject (2,95 % of all examined forearm). The palmaris longus muscle was innervated by branches of the median nerve .The accessory palmaris longus muscle was supplied by the deep branch of the ulnar nerve.  Palmaris longus muscle is a muscle located in the superficial layer of the anterior compartment of the forearm. It has a small belly arising from the medial epicondyle of the humerus, and its long thin tendon inserts into the palmar aponeurosis in the hand, the muscle has importance in medical clinic, surgery, radiological analysis, in studies about high-performance athletes, in genetics and anthropologic studies. Conclusions: The anatomical variations of the palmaris longus muscle must be documented of their clinical significance and their potential use in orthopaedic and reconstructive surgery.

2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Łukasz Olewnik ◽  
Grzegorz Wysiadecki ◽  
Michał Polguj ◽  
Michał Podgórski ◽  
Hubert Jezierski ◽  
...  

Folia Medica ◽  
2017 ◽  
Vol 59 (3) ◽  
pp. 289-297 ◽  
Author(s):  
Georgi P. Georgiev ◽  
Alexandar A. Iliev ◽  
Iva N. Dimitrova ◽  
Georgi N. Kotov ◽  
Lina G. Malinova ◽  
...  

AbstractBackground:The palmaris longus muscle is one of the most variable muscles in the human body and there have been numerous variations reported. The different palmaris longus variations are interesting not only from an anatomical point of view, but they could also have definite clinical significance.Aim:The aim of this study was to examine the different types of variations of palmaris longus muscle in the Bulgarian population.Materials and methods:Over a period of 15 years, 56 formol–carbol fixed human cadavers were studied to investigate the different variations of palmaris longus muscle (PLM).Results:Various anatomical variations of PLM have been reported: absence (2.68%); reversed palmaris longus coexisting with an additional abductor digiti minimi muscle (0.89%); digastric (0.89%); palmaris longus with intermediate muscle belly (1.79%) and duplication (1.79%).Conclusions:To reveal the wide variety of the types of palmaris longus muscle and their importance for clinical practice, we make a brief literature review concerning the different types of variations, their role in the median and ulnar neuropathy in the wrist or as structures simulating a soft tissue tumour and the application of palmaris longus tendon in plastic and reconstructive surgery as grafting material. We also present new systematic anatomical and clinical classifications of palmaris longus variations by dividing them into two simple groups.


Author(s):  
Mehdi Forouzesh ◽  
Abdolrazagh Barzegar ◽  
Fardin Fallah

Palmaris Longus (PL) is a muscle of the forearm, i.e., not functionally necessary and does not exist in all people. It is a choice for tendon graft and investigating its prevalence is of clinical importance. During April-October 2009, 102 cadavers (78 males, 24 females) were bilaterally necropsied for PL exploration in Zanjan City, Iran. PL Absence (PLA) was observed in 37 (36.3%) cases (28 males, 9 females). PLA prevalence was similar in men (36%) and women (37.5%). Of PLA cases, 19 (51%) were unilateral (14 males, 5 females), and 18 (49%) were bilateral (14 males, 4 females). In conclusion, PLA prevalence of 36.3% in our population was similar to other studies conducted in Iran. We found no gender difference in PLA prevalence and its patterns. Due to geographical variability in PLA rate, future regional and national studies with more magnificent sample sizes are recommended to determine the prevalence and gender-specific patterns of PLA.


2006 ◽  
Vol 19 (6) ◽  
pp. 554-557 ◽  
Author(s):  
Cesare Tiengo ◽  
Veronica Macchi ◽  
Carla Stecco ◽  
Franco Bassetto ◽  
Raffaele De Caro

10.3823/2626 ◽  
2020 ◽  
Vol 13 ◽  
Author(s):  
Viviane Moura Leite ◽  
Caroline Freitas de Souza Plácido ◽  
Carolina Lucena Veloso Gusmão ◽  
Evelyne Pessoa Soriano ◽  
Adriana Conrado Almeida ◽  
...  

Background The aim of this study was to analyze the extent and uniqueness of anatomical variations of the sternum bone, to assess its applicability for forensic analysis, especially for individual human identification. Methods and Findings Evaluations involved 501 computer tomography scans performed at the Medical Radiology Center, Manaus city, Amazonas, Brazil, and 427 skeletons belonging to the Collection of Identified Human Skeletons of the Center for Studies in Forensic Anthropology (CEAF), of the University of Pernambuco (UPE), Pernambuco, Brazil.  Forms of morphological variations were evaluated, including the presence of foramina, fissures, and incomplete total or partial fusions, as well as forms of xiphoid process termination, and the presence of surgical sutures. Overall, summing computed tomographic images and skeletons, the sternal foramen was present in some 23% of samples, with a greater proportion in males (14%), while in females the frequency was 8.6%. Conclusions The qualitative analysis of the sternum bone is simple to apply and represents an important potential source of information in a human identification process.


10.3823/2479 ◽  
2017 ◽  
Vol 10 ◽  
Author(s):  
Humberto Ferreira Arquez

Background: Brachial plexus variations are not rare. Variations in its terminal branches in the arm or forearm are frequently reported. Communications between branches of the brachial plexus are also not uncommon findings; however there is very little mention of communication between the radial and ulnar nerves in the literature. In view of this significance is performed this study with the purpose to determine any communications of radial nerve with neighboring peripheral nerves at level of axilla, arm, forearm. Methods and Findings: A total of 17 cadavers with different age groups were used for this study. The upper limbs region (34 sides) were dissected carefully and photographed in the Morphology Laboratory at the University of Pamplona. Of the 34 upper limbs studied 33 showed normal morphology, the course and branching patterns of the nerves was normal (97.06%). In 1 specimen in the left forearm (2.94%), the radial and ulnar nerves were dissected and communicating branches were observed originating near the upper third in the posterior aspect of the forearm traveling from the ulnar to the radial nerve. The communicating branch was approximately 5.84 cm long and 1.73 mm in diameter. This anastomotic branch is an unusual anastomosis, no described in the literature between radial and ulnar nerve in forearm. Knowledge on the variant pattern of peripheral nerves is imperative not only for the surgeons, but also for the radiologists during image technology and MRI interpretations and for the anesthesiologists before administering anesthetic agents thus in diagnostic approaches.   Conclusions: Lack of understanding of these variations can also confound the assessment of the severity of nerve injury as well as recovery. Awareness of such anatomical variations is very important in order to proper diagnosis of sensorimotor symptoms.


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