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Start Over Descriptor "Palmar cutaneous branch" Topic anatomy
3 results on '"Palmar cutaneous branch"'

1. Anatomical variations of the innervated radial artery superficial palmar branch flap: A series of 28 clinical cases.

Author

Jae-Won Yang

Subjects
*RADIAL artery, *ANATOMICAL variation, *MEDIAN nerve, *OPERATIVE surgery, *PERFORATOR flaps (Surgery), *ANATOMY
Abstract

Background The innervated radial artery superficial palmar branch (iRASP) flap was designed to provide consistent innervation by the palmar cutaneous branch of the median nerve (PCMN) to a glabrous skin flap. The iRASP flap is used to achieve coverage of diverse volar defects of digits. However, unexpected anatomical variations can affect flap survival and outcomes. Methods Cases in which patients received iRASP flaps since April 1, 2014 were retrospectively investigated by reviewing the operation notes and intraoperative photographs. The injury type, flap dimensions, arterial and neural anatomy, secondary procedures, and complications were evaluated. Results Twenty-eight cases were reviewed, and no flap failures were observed. The observed anatomical variations were the absence of a direct skin perforator, large-diameter radial artery superficial palmar branch (RASP), and the PCMN not being a single branch. Debulking procedures were performed in 16 cases (57.1%) due to flap bulkiness. Conclusions In some cases, an excessively large RASP artery was observed, even when there was no direct skin perforator from the RASP or variation in the PCMN. These findings should facilitate application of the iRASP flap, as well as any surgical procedures that involve potential damage to the PCMN in the inter-thenar crease region. Additional clinical cases will provide further clarification regarding potential anatomical variations. [ABSTRACT FROM AUTHOR]

Published
2020
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2. Risk Assessment of Injury to Palmar Cutaneous Branch of the Median Nerve Using High-Resolution Ultrasound

Author

Hyuk Sung Choi, Seok Ho Kang, Young Ha Jeong, Jun Ho Choi, Seung Nam Yang, and Joon Shik Yoon

Subjects
musculoskeletal diseases, 030506 rehabilitation, lcsh:Medicine, Median nerve, Wrist, Antebrachial fascia, 03 medical and health sciences, 0302 clinical medicine, Ultrasound, Medicine, Carpal tunnel syndrome, Palmar cutaneous branch, business.industry, Rehabilitation, lcsh:R, Anatomy, medicine.disease, musculoskeletal system, Tendon, body regions, Tendon sheath, medicine.anatomical_structure, Cutaneous branch, Original Article, 0305 other medical science, business, 030217 neurology & neurosurgery
Abstract

Objective To evaluate the relationship between the palmar cutaneous branch of median nerve (PCBMN) and surrounding anatomical structures by using high-resolution ultrasound (HRUS) to assess the risk of PCBMN injury. Methods The PCBMN course and the characteristics of bilateral distal forearms and wrists of 30 healthy volunteers were identified. The distance between PCBMN and other anatomical structures at three different levels along its course were measured using HRUS. Moreover, the depth of PCBMN from skin and its cross-sectional area (CSA) were measured. Results HRUS showed the PCBMN in all subjects. PCBMN branched off from the radial aspect of the median nerve (MN) at 4.69±0.89 cm proximal to the bistyloid line (BSL) and extended radially toward the flexor carpi radialis (FCR) tendon. PCBMN was within the ulnar edge of FCR tendon sheath, and became more superficial and perforated the antebrachial fascia between the FCR tendon laterally and the palmaris longus (PL) tendon medially. PCBMN was located at 4.08±0.72 mm on the ulnar aspect of the FCR tendon and 4.78±0.36 mm radially on the PL tendon at BSL. At the distal wrist crease level, the PCBMN was located at 5.68±0.58 mm on the ulnar side of the FCR tendon. The PCBMN depth from skin at BSL and its branching point was 1.92±0.41 and 7.95±0.79 mm, respectively. The PCBMN CSA was 0.26±0.15 mm2 at BSL. Conclusion HRUS can be used to identify PCBMN and its relationship with other anatomical structures. Our data can be used to predict PCBMN location, and prevent complications associated with invasive procedures involving the wrist.

Published
2019

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