Anatomical studies and clinical applications of a flap based on above-wrist cutaneous branch of the ulnar artery. (Chinese)

1997 ◽  
Vol 99 (3) ◽  
pp. 936
Author(s):  
Khoo Boo-Chai
Keyword(s):  
Ulnar Artery ◽  
Clinical Applications ◽  
Anatomical Studies ◽  
Cutaneous Branch

Anatomy of the palmar branch of the ulnar nerve: application to ulnar and median nerve decompressive surgery

2011 ◽  
Vol 114 (1) ◽  
pp. 263-267 ◽  
Author(s):  
R. Shane Tubbs ◽  
Jason M. Rogers ◽  
Marios Loukas ◽  
Ayhan Cömert ◽  
Mohammadali M. Shoja ◽  
...  
Keyword(s):  
Median Nerve ◽  
Ulnar Nerve ◽  
Ulnar Artery ◽  
Medial Epicondyle ◽  
Palmar Arch ◽  
Medial Side ◽  
Fourth Digit ◽  
Palmar Cutaneous Branch ◽  
Cutaneous Branch ◽  
The Mean

Object The palmar cutaneous branch of the ulnar nerve (PCUN) has received little attention in the literature, and to the authors' knowledge, has received no attention in the neurosurgical literature. The present study was performed to help the surgeon minimize postoperative complications of nerve decompression at the wrist. Methods Forty cadaveric upper limbs underwent dissection of the ulnar nerve in the forearm, at the wrist, and in the palm. The PCUN was investigated and when identified, measurements were made and relationships documented between this cutaneous branch and the ulnar artery. The length and width of the PCUN were measured, as was the distance from the medial epicondyle of the humerus to the origin of the PCUN from the ulnar nerve. Results A PCUN was found on 90% of sides. The origin of the PCUN from the ulnar nerve was found to lay a mean of 14.3 cm distal to the medial epicondyle. The mean length and width of this branch were 13 and 0.08 cm, respectively. In the forearm, the PCUN traveled lateral to the ulnar artery on 75% of sides and on the medial side of this vessel on the remaining sides. The PCUN perforated the fascia of the anterior forearm just proximal to the distal wrist crease. In the palm, the PCUN traveled superficial to the superficial palmar arch on all but 5 sides, where it traveled deep to this vascular structure's distal extent. On 2 sides each, the PCUN communicated with the superficial and deep ulnar nerves. On 2 sides, the PCUN communicated with the palmar cutaneous branch of the median nerve. The majority of the terminal fibers of the PCUN were found on the ulnar side of a hypothetical line drawn longitudinally through the fourth digit and supplied an area roughly 3 × 3 cm over the proximal medial palm. Conclusions The authors hope that the present data may be useful to the surgeon during decompressive procedures at the wrist, such as carpal tunnel and the Guyon canal. Based on this study, skin incisions of the palm made longitudinally along a line through the middle of the fourth digit would minimize injury to the PCUN.

Ulnar Artery Free Flap and the Need for Concern in Its Use: Anatomical Studies and Clinical Experience

1997 ◽  
Vol 5 (2) ◽  
pp. 88-91
Author(s):  
MTM Rebot ◽  
MF Stranc ◽  
BM Abdulrauf
Keyword(s):  
Ulnar Nerve ◽  
Clinical Experience ◽  
Free Flap ◽  
Ulnar Artery ◽  
Potential Donor ◽  
Anatomical Studies ◽  
Nerve Dysfunction ◽  
Possible Cause

The ulnar artery free flap is one of the choices available when selecting potential donor flaps from the forearm. This flap is reliable and versatile, but its use can potentially devascularize the forearm segment of the ulnar nerve. Clinical experience with this flap has demonstrated that in two of seven patients ulnar nerve dysfunction occurred in the hand. Anatomical studies may reveal a possible cause for this previously unreported finding.

scholarly journals Variations in the Anatomical Structures of the Guyon Canal

2017 ◽  
Vol 25 (2) ◽  
pp. 84-92 ◽  
Author(s):  
Zahir T. Fadel ◽  
Osama A. Samargandi ◽  
David T. Tang
Keyword(s):  
Ulnar Nerve ◽  
Ulnar Artery ◽  
Anatomical Variations ◽  
Branching Pattern ◽  
Motor Branch ◽  
Anatomical Structures ◽  
Perforating Artery ◽  
Flexor Carpi Ulnaris ◽  
Cutaneous Branch ◽  
Manual Review

Background: Compression neuropathy of the ulnar nerve at the Guyon canal is commonly seen by hand surgeons. Different anatomical variations of structures related to the Guyon canal have been reported in the literature. A thorough knowledge of the normal contents and possible variations is essential during surgery and exploration. Objectives: To review the recognized anatomical variations within and around the Guyon canal. Methods: This study is a narrative review in which relevant papers, clinical studies, and anatomical studies were selected by searching electronic databases (PubMed and EMBASE). Extensive manual review of references of the included studies was performed. We also describe a case report of an aberrant muscle crossing the Guyon canal. Results: This study identified several variations in the anatomical structures of the Guyon canal reported in the literature. Variations of the ulnar nerve involved its course, branching pattern, deep motor branch, superficial sensory branch, dorsal cutaneous branch, and the communication with the median nerve. Ulnar artery variations involved its course, branching pattern, the superficial ulnar artery, and the dorsal perforating artery. Aberrant muscles crossing the Guyon canal were found to originate from the antebrachial fascia, pisiform bone, flexor retinaculum, the tendon of palmaris longus, flexor carpi ulnaris, or flexor carpi radialis; these muscles usually fuse with the hypothenar group. Conclusion: The diverse variations of the contents of the Guyon canal were adequately described in the literature. Taking these variations into consideration is important in preventing clinical misinterpretation and avoiding potential surgical complications.

Microsurgical Anatomy of Hypothenar Flap

1996 ◽  
Vol 21 (6) ◽  
pp. 831-831
Author(s):  
J. Lao ◽  
Y-D. Gu ◽  
Z-P. Wu
Keyword(s):  
Venous Return ◽  
Anatomical Study ◽  
Ulnar Artery ◽  
Microsurgical Anatomy ◽  
Direct Closure ◽  
Deep Branch ◽  
Superficial Branch ◽  
Cutaneous Branch ◽  
Donor Area ◽  
Tissue Defects

A microsurgical anatomical study was performed in the hypothenar area in 34 hands of 17 fresh cadavers. The hands were injected by latex through the humeral arteries. The hypothenar area was dissected under a microscope. The length, diameter and location of the branches from the ulnar artery and cutaneous branches from the proper artery of the little fingers were examined. The sources of blood supply to the hypothenar flaps were: (1) one fairly constant hypothenar cutaneous branch of the ulnar artery together with two to six other cutaneous branches from the ulnar artery. The hypothenar cutaneous branch of the ulnar artery had a pedicle of 9.9mm in length, 0.13mm in diameter. This artery originated from the ulnar artery 1.6 cm proximal to the pisiform; (2) four to six cutaneous branches from the proper arteries of the little finger; (3) the cutaneous and muscular branches from the deep branch of the ulnar artery. The venous return was through (1) concomitant veins of the cutaneous branches of the ulnar artery; (2) a palmar subcutaneous venous network. The flap was innervated by one to two branches from the superficial branch of the ulnar nerve. This anatomical study indicates that a flap from the hypothenar area can be harvested with the pedicle of the hypothenar branch of the ulnar artery to repair soft tissue defects in hyopthenar area, palmar wrist region or fingers with the advantage of direct closure of the donor area.

scholarly journals The Cutaneous Branch of the Deep Ulnar Artery

Hand ◽  
2016 ◽  
Vol 11 (1_suppl) ◽  
pp. 21S-21S
Author(s):  
Daniel Postan ◽  
Luciano A. Poitevin
Keyword(s):  
Ulnar Artery ◽  
Cutaneous Branch

Clinical Application of the Flap Based on the Distal Cutaneous Branch of the Ulnar Artery

2011 ◽  
Vol 70 (5) ◽  
pp. E93-E97 ◽  
Author(s):  
Dong-Xin Liu ◽  
Chuang-Yi Zheng ◽  
Xue-Dong Li ◽  
Hu Wang ◽  
Shi-Xin Du
Keyword(s):  
Clinical Application ◽  
Ulnar Artery ◽  
Cutaneous Branch

Ultrastructure of the soil fungus, Geomyces pannorus

1984 ◽  
Vol 42 ◽  
pp. 738-739
Author(s):  
J. A. Traquair ◽  
E. G. Kokko
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Fine Structure ◽  
Low Temperatures ◽  
Soil Fungus ◽  
Organic Soils ◽  
Anatomical Studies ◽  
Transmission Electron ◽  
Electron Microscopical ◽  
Scanning Electron

With the advent of improved dehydration techniques, scanning electron microscopy has become routine in anatomical studies of fungi. Fine structure of hyphae and spore surfaces has been illustrated for many hyphomycetes, and yet, the ultrastructure of the ubiquitous soil fungus, Geomyces pannorus (Link) Sigler & Carmichael has been neglected. This presentation shows that scanning and transmission electron microscopical data must be correlated in resolving septal structure and conidial release in G. pannorus.Although it is reported to be cellulolytic but not keratinolytic, G. pannorus is found on human skin, animals, birds, mushrooms, dung, roots, and frozen meat in addition to various organic soils. In fact, it readily adapts to growth at low temperatures.

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