The palmaris longus muscle normally develops from the medial epicondyle of the humerus via a shared flexor origin. In the centre of the forearm, the muscle belly forms a tendon that connects to the flexor retinaculum and palmar aponeurosis. The goal of this research is to show an uncommon variant of the Palmaris Longus muscle. After dissecting both forearms of a 45-year-old male corpse, we discovered a reversed palmaris longus muscle. This shows that the proximal portion of the palmaris longus muscle was tendinous, while the distal portion was muscular. As it went over the flexor retinaculum, separate fascia unwrapped the meaty belly of the muscle. Trifid insertion was centrally into palmar aponeurosis, laterally continuous with the fascia covering the thenar muscles, and medially with Abductor digit minimi, with the muscle belly spreading on both sides of each palm. On both sides, it possessed tendinous connections to the muscle mass. A bilateral reversed palmaris longus muscle was discovered after surgery in a patient with edoema and wrist pain, according to the literature. Local hypertrophy can arise from overuse of the inverted palmaris longus muscle. A reversed palmaris longus muscle, according to the literature, can cause a compartment syndrome with discomfort and edoema in the wrist, carpal tunnel syndrome, and Guyon's syndrome. The palmaris longus muscle acts as an anatomical reference for procedures in this area, therefore the variant is also advantageous to hand surgeons.
Author(s) Details:
Anita R. Gune,
Department of Anatomy, D. Y. Patil
Medical College. D. Y. Patil Education Society, Kolhapur, Maharashtra, India
Ashalata D. Patil,
Department of Anatomy, D. Y. Patil
Medical College. D. Y. Patil Education Society, Kolhapur, Maharashtra, India.
Vasudha R. Nikam ,
Department of Anatomy, D. Y. Patil Medical College. D. Y. Patil Education
Society, Kolhapur, Maharashtra, India.
Please see the link here: https://stm.bookpi.org/IDMMR-V10/article/view/5825
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