{'fraction_non_alphanumeric': 0.05244399185336049, 'fraction_numerical': 0.051934826883910386, 'mean_word_length': 4.103896103896104, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
TOPOGRAPHICAL ANATOMY OF THE ULNAR NERVE AND ITS MUSCULAR BRANCHES RELATED TO SURFACE LANDMARK

Understanding of the anatomy of the ulnar nerve and its branches is vital to the treatment of cubital tunnel syndrome, tennis elbow, ulnar neuropathy, nerve transfer in the surgical management of compression at the elbow, tennis elbow or the restoration of upper extremity function. In the search to add details and pertinent information and ulnar nerve in the region of the forearm, we carry out this work. We have dissected 30 upper extremities from adult cadavers to locate the course of the ulnar nerve and the origins and insertions of the branches of the ulnar nerve using elbow joint like surface landmark. In average, 2.7 (max. 4) branches left the ulnar nerve to Flexor Carpi Ulnaris. 60.24% arose the nerve above elbow joint (AEJ) (−59.21mm above), 30.12% origins in the Proximal Upper Third (PUT) of forearm, 4.82% origin in Distal Upper Third (DUT) and 4.82% in the Proximal Middle Third (PMT), being the most distal origin 100.90 mm below the elbow joint. These branches reach the muscle belly in average in 6 points (max 15). The most proximal penetrated AEJ in 8.29% (−15.31 mm above), 56.91% in PUT, 19.89 % in DUT, 12.7 % in PMT and 2.21% in DMT with the most distal to 132.25 mm below the elbow joint. To Flexor Digitorum Profundus, in average 1.17 (max. 2) branches left the ulnar nerve to muscle. 31.42% left the nerve AEJ (−18.31 mm above), 65.71% in the PUT and 2.87% in DUT, being the most distal origin in 39.13 mm below the elbow joint. These branches penetrated in the muscle belly in average in 3.1 points (max 5). The most proximal penetrated in 52.69% in PUT (4.86 mm), 45.16 % in DUT and 2.15 % in PMT with the most distal 84.09 mm below the elbow joint. In this study we found 5(five) Martin‐Gruber Anastomosis. Using these data, the course of the branches of the ulnar nerve can be estimated by observing the surface of the elbow joint.