scholarly journals Anatomy of the ulnar nerve in the posterior compartment of the upper arm: Relationships with the triceps brachii muscle

Morphologie ◽  
2020 ◽  
Vol 104 (345) ◽  
pp. 85-90
Author(s):  
L. Athlani ◽  
A. Delgove ◽  
G. Dautel ◽  
V. Casoli
Keyword(s):  
Ulnar Nerve ◽  
Triceps Brachii ◽  
Posterior Compartment ◽  
Upper Arm ◽  
Triceps Brachii Muscle

Presence of communication between radial and ulnar nerve at high humeral level and its distribution to triceps brachii muscle

2015 ◽  
Vol 4 (1) ◽  
pp. 39 ◽  
Author(s):  
Naveen Kumar ◽  
SatheeshaB Nayak ◽  
SurekhaD Shetty ◽  
RavindraS Swamy ◽  
Ashwini Aithal
Keyword(s):  
Ulnar Nerve ◽  
Triceps Brachii ◽  
Triceps Brachii Muscle

Abnormal innervation of the triceps brachii muscle by the ulnar nerve

2010 ◽  
Vol 35 (5) ◽  
pp. 430-431 ◽  
Author(s):  
MI Miguel-Pérez ◽  
A. Combalia ◽  
JM Arandes
Keyword(s):  
Ulnar Nerve ◽  
Triceps Brachii ◽  
Triceps Brachii Muscle

scholarly journals Ulnar nerve contribution in the innervation of the triceps brachii muscle ulnar nerve to the triceps brachii

1970 ◽  
Vol 6 (1) ◽  
pp. 834-839
Author(s):  
DLR Silva ◽  
MP Barros ◽  
TGS Freire ◽  
L Firmino Júnior ◽  
WRB Almeida Filho ◽  
...  
Keyword(s):  
Brachial Plexus ◽  
Ulnar Nerve ◽  
Terminal Branch ◽  
Upper Limbs ◽  
Triceps Brachii ◽  
Medial Head ◽  
Muscle Innervation ◽  
Triceps Brachii Muscle ◽  
Long Head ◽  
Lateral Head

The ulnar nerve is considered the thickest terminal branch of the medial cord in the brachial plexus and most authors does not mention the possibility of this nerve emitting branches to the arm. However, some studies reported that the ulnar nerve could supply the medial head of triceps brachii muscle. The main objective in this study was identifying the presence of ulnar nerve branches in triceps brachii muscle. Sixty upper limbs of adult Brazilian corpses of both sexes were used. The estimated age was between 25 and 80 years old. Every studied piece had the nerves and their branches quantified and measured with a manual mechanic caliper. The branches were photographed and had the data registered in individual files. Were found ulnar nerve branches for all the heads of triceps brachii muscle: 1 branch (9,1%) to lateral head, 2 branches (18,1%) to long head and 8 branches (72,7%) to medial head. Thus, we can conclude that the contribution of ulnar nerve to triceps brachii muscle constitutes an important anatomical variation.Key words: Ulnar nerve; Triceps brachii muscle; Innervation.

Topographic relationship between the medial intermuscular septum and the ulnar nerve in the upper arm

2011 ◽  
Vol 114 (6) ◽  
pp. 1534-1537 ◽  
Author(s):  
Hyung-Sun Won ◽  
Seung-Ho Han ◽  
Chang-Seok Oh ◽  
In-Hyuk Chung ◽  
Seung Min Kim ◽  
...  
Keyword(s):  
Ulnar Nerve ◽  
Medial Epicondyle ◽  
Posterior Compartment ◽  
Upper Arm ◽  
Nerve Lesions ◽  
The Relationship

Object The authors have observed that the ulnar nerve (UN) passes through the medial intermuscular septum (MIMS) into the posterior compartment of the upper arm in more complicated patterns than those described in anatomy textbooks. Given that these unreported patterns might be related to the idiopathic UN entrapment at the midarm, this study focused on the relationship between the MIMS and the UN. Methods One hundred upper arms were dissected. The site at which the UN pierced the MIMS was analyzed and measured from the medial epicondyle. Results The relationship between the MIMS and the UN could be classified into 3 types according to whether the nerve pierced the MIMS and whether it ran through a fibrous tunnel within the septum. The UN pierced the MIMS in the middle third of the upper arm. Conclusions The results of this study are expected to further understanding of the relationship between the MIMS and the UN. They could also be helpful for surgeons aiming to relieve UN entrapment at the midarm, especially in nerve lesions of idiopathic origin.

scholarly journals HUBUNGAN PANJANG SARAF ULNARIS DI KOMPARTEMEN POSTERIOR DENGAN PANJANG LENGAN ATAS SEBAGAI ACUAN TERAPI

2018 ◽  
Vol 35 (2) ◽  
Author(s):  
Regina Marvina Hutasoit ◽  
Vita Murniati Tarawan Lubis ◽  
Arifin Soenggono
Keyword(s):  
Ulnar Nerve ◽  
Average Length ◽  
Pearson Correlation ◽  
Minimal Invasive ◽  
Nerve Compression ◽  
Posterior Compartment ◽  
Upper Arm ◽  
Anatomical Dissection ◽  
Average Ratio ◽  
Upper Arm Length

CORRELATION BETWEEN ULNARIS NERVE LENGTH IN POSTERIOR COMPARTMENT AND UPPER LIMB LENGTH AS:A REFERENCE FOR THERAPYABSTRACT Introduction: Ulnar nerve is the second most common affected nerve by compression in upper extremity. Medial intermuscular septum separating upper arm into anterior and posterior compartments is suspect to be the sites of ulnar nerve compression. Various examinations attempt to locate accurate nerve compression sites to minimize surgery side effects.Aim: This study analyze ratio of ulnar nerve length in posterior compartment using anatomical dissection method with upper arm  length using anthropometry method and  to analyze correlation of ulnar nerve length in posterior compartment with upper arm  length.Methods: This is a descriptive analytical study with a cross sectional design on cadaver between May to June2017 at Anatomy Laboratorium Medical Faculty University of Padjajaran, Bandung. The length of cadaver upper arm was measured with antropometry method and ulnar nerve length in posterior compartment by anatomical dissection. The measurements were statistically analyzed with Pearson correlation.Result: The average length of 9 cadaver or 18 right upper arm (right and left) was 38.3cm for right and 38.0cm for left. While the average length of right and left ulnar nerve in posterior compartment were 11.7cm and 11.4cm respectively, thus the average ratio length of upper arm with ulnar nerve length was 1:3. Analysis using Pearson correlation show a positive correlation on left and right arm, although not significant. Contrast to existing theory, the ulnar nerve crossed in one-third of the posterior upper arm compartment. In minimal invasive decompression this finding could be reference to extend the incission to become 11.7cm for right and 11.4cm for left arm to avoid re-decompression.Discussion: The average ratio length of upper arm with ulnar nerve length was 1:3. There is a positive between thelength of ulnar nerve on the posterior compartment and the length of upper arm, although not significant.Keyword: Posterior compartment, ulnar nerve length, upper arm length ratioABSTRAKPendahuluan: Saraf ulnaris menempati urutan kedua saraf yang sering terkena sindrom kompresi pada ekstremitas atas. Septum intermuskularis medial yang memisahkan lengan atas menjadi bagian kompartemen anterior dan posterior dicurigai menjadi salah satu tempat terjadinya kompresi saraf ulnaris. Berbagai pemeriksaan berupaya menemukan lokasi kompresi saraf yang akurat untuk meminimalisir efek samping dari terapi khususnya operasi.Tujuan: Menilai hubungan perbandingan panjang saraf ulnaris di kompartemen posterior berdasarkan diseksi anatomis dengan panjang lengan atas secara antropometri.Metode: Penelitian deskriptif analitik secara potong lintang pada kadaver pada bulan Mei hingga Juni 2017 di Laboratorium Anatomi Fakultas Kedokteran Universitas Padjajaran, Jatinangor. Panjang lengan atas kadaver diukur secara antropometri, sedangkan panjang saraf ulnaris pada kompartemen posterior berdasarkan diseksi anatomi. Hasil pengukuran dinilai secara statistik menggunakan uji korelasi Pearson.Hasil: Pengukuran terhadap 9 kadaver atau 18 lengan atas (kanan dan kiri) mendapatkan rerata panjang lengan atas kanan 38,3cm dan kiri 38cm. Adapun rerata panjang saraf ulnaris kanan dan kiri di kompartemen posterior masing- masing 11,7cm dan 11,4cm, sehingga didapatkan perbandingan rerata panjang jarak lengan atas dengan panjang saraf ulnaris adalah 1:3. Analisis uji korelasi Pearson menunjukkan hubungan positif pada lengan kiri dan kanan walaupun tidak signifikan. Saraf ulnaris didapatkan menyilang di sepertiga kompartemen posterior lengan atas, berbeda dengan teori yang ada. Pada operasi yang memakai metode minimal invasive decompression, temuan ini dapat menjadi pertimbangan untuk memperluas garis insisi 11,7cm pada lengan kanan dan 11,4cm kiri untuk menghindari dekompresi ulang.Diskusi: Didapatkan perbandingan rerata panjang saraf ulnaris di kompartemen posterior dengan panjang lengan atas 1:3. Terdapat hubungan positif antara panjang saraf ulnaris di kompartemen posterior dengan panjang lengan atas walaupun tidak bermakna.Kata kunci: Kompartemen posterior, panjang saraf ulnaris, perbandingan panjang lengan atas

Ulnar nerve innervation of the medial head of the triceps brachii muscle: A cadaveric study

2013 ◽  
Vol 26 (8) ◽  
pp. 1028-1030 ◽  
Author(s):  
Marios Loukas ◽  
Sharath S. Bellary ◽  
Neslihan Yüzbaşioğlu ◽  
Mohammadali M. Shoja ◽  
R. Shane Tubbs ◽  
...  
Keyword(s):  
Ulnar Nerve ◽  
Cadaveric Study ◽  
Triceps Brachii ◽  
Medial Head ◽  
Triceps Brachii Muscle

scholarly journals A Unilateral Variation in Triceps Brachii Muscle Demonstrating a Fourth Head

2021 ◽  
Author(s):  
Shveta Swami ◽  
Virendra Budhiraja ◽  
Deepak Sharma ◽  
Rimpi Gupta ◽  
Swati Bansal
Keyword(s):  
Radial Nerve ◽  
Anatomical Variations ◽  
Triceps Brachii ◽  
Posterior Compartment ◽  
Medial Head ◽  
Compression Syndrome ◽  
Male Cadaver ◽  
Triceps Brachii Muscle ◽  
The Right ◽  
Neurovascular Bundles

Abstract Introduction Triceps brachii muscle is the only muscle of posterior compartment of arm, consisting of three heads—long, lateral, and medial. Radial nerve and profunda brachii artery run in the radial groove that separate lateral and medial head. Evolutionarily, triceps has many subheads which either fused or disappeared. Therefore, the knowledge of muscle is essential anthropologically and clinically, and this study aims to study the anatomical variations of triceps brachii muscle. Case Report In the present case, during routine dissections of undergraduate MBBS students, a fourth head of origin of triceps brachii muscle was seen in a male cadaver in the right arm. The variation was seen only unilaterally in cadaver. The origin was tendinous arising from the posteromedial aspect of upper part of the shaft of the humerus close to the surgical neck above the radial groove. This tendon was arching over the neurovascular bundle containing radial nerve and profunda brachii artery. Discussion and Conclusion The variations of triceps brachii muscles are mentioned in literature but are uncommon and if tendinous fourth head is present over the neurovascular bundles, it may lead to compression syndrome. Hence, these variations are of great importance to the radiologists, surgeons, and orthopaedicians while dealing with posterior compartment of arm.

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