Examination of the Dorsal Finger Vein Anatomy Using a Vein Visualization Device

2020 ◽  
Vol 25 (03) ◽  
pp. 291-295
Author(s):  
Takuya Tsumura ◽  
Taiichi Matsumoto ◽  
Mutsumi Matsushita ◽  
Katsuma Kishimoto ◽  
Hayao Shiode
Keyword(s):  
Central Vein ◽  
Joint Level ◽  
Finger Vein ◽  
Finger Amputation ◽  
Distal Interphalangeal ◽  
Visualization Device

Background: The vein anatomy of the dorsal finger is often difficult to identify suitable veins for anastomosis when treating digital amputations, but it has not been well studied to date. The aim of our study was to determine the vein anatomy of the dorsal finger using a vein visualization device. Methods: The study sample consisted of 20 volunteers (11 men and 9 women; 148 fingers and 37 thumbs). The number and location of veins, the distance from the finger midline to the most central vein, and the distance from the central vein to the adjacent vein were examined using a vein visualization device, Stat Vein®, at the eponychial level, distal interphalangeal (DIP) joints, and proximal interphalangeal joints. Results: In the finger, the distance from the nail lunula edge to the vein at the eponychial level was about 5 mm and that from the central vein to the adjacent vein at the DIP joints was about 8 mm. In the thumb, the distance from the nail lunula margin to the vein at the eponychial level was about 5 mm and that from the central vein to the adjacent vein at the interphalangeal joints was about 6 mm. Conclusions: Treatment of DIP joint-level finger amputation requires identification of the central vein at first and then the site about 8 mm away from the central vein. In the treatment of eponychial-level finger amputation, the vein is found about 5 mm away from the nail lunula edge.

ISCHAEMIA OF THE HAND IN INFANTS FOLLOWING RADIAL OR ULNAR ARTERY CATHETERISATION

Hand Surgery ◽  
1999 ◽  
Vol 04 (02) ◽  
pp. 151-157 ◽  
Author(s):  
J. A. Green ◽  
M. A. Tonkin
Keyword(s):  
English Literature ◽  
Pediatric Intensive Care ◽  
Hand Surgery ◽  
Ulnar Artery ◽  
Carpometacarpal Joint ◽  
Distal Interphalangeal Joint ◽  
Joint Level ◽  
Distal Interphalangeal ◽  
Middle Ring ◽  
Digital Ischaemia

Radial and ulnar arterial catheterisation have become frequently used methods of monitoring in neonatal and pediatric intensive care units. Minor complications are common and temporary ischaemic changes in the form of blanching are well described. However, permanent ischaemia in the infant has rarely been reported. This series is the first in the hand surgery literature to address the issue of digital ischaemia following radial artery catheterisation in the infant population and adds three to the six previously reported cases in the English literature. One patient had fingertip necrosis to the distal interphalangeal joint level of the middle, ring and little fingers, while two other patients required amputation at the carpometacarpal joint level.

IRIS AND FINGER VEIN MULTI MODEL RECOGNITION SYSTEM BASED ON SIFT FEATURES

2018 ◽  
Vol 1 (2) ◽  
pp. 34-44
Author(s):  
Faris E Mohammed ◽  
Dr. Eman M ALdaidamony ◽  
Prof. A. M Raid
Keyword(s):  
Iris Recognition ◽  
Recognition Performance ◽  
Recognition System ◽  
Individual Identification ◽  
Work Place ◽  
Identification Process ◽  
Finger Vein ◽  
Noise Point ◽  
Vein Recognition ◽  
A New Technique

Individual identification process is a very significant process that resides a large portion of day by day usages. Identification process is appropriate in work place, private zones, banks …etc. Individuals are rich subject having many characteristics that can be used for recognition purpose such as finger vein, iris, face …etc. Finger vein and iris key-points are considered as one of the most talented biometric authentication techniques for its security and convenience. SIFT is new and talented technique for pattern recognition. However, some shortages exist in many related techniques, such as difficulty of feature loss, feature key extraction, and noise point introduction. In this manuscript a new technique named SIFT-based iris and SIFT-based finger vein identification with normalization and enhancement is proposed for achieving better performance. In evaluation with other SIFT-based iris or SIFT-based finger vein recognition algorithms, the suggested technique can overcome the difficulties of tremendous key-point extraction and exclude the noise points without feature loss. Experimental results demonstrate that the normalization and improvement steps are critical for SIFT-based recognition for iris and finger vein , and the proposed technique can accomplish satisfactory recognition performance. Keywords: SIFT, Iris Recognition, Finger Vein identification and Biometric Systems.   © 2018 JASET, International Scholars and Researchers Association    

Evaluation of the diffusion of corticosteroids between the distal interphalangeal joint and navicular bursa in horses

2008 ◽  
Vol 232 (9) ◽  
pp. 1343-1343
Author(s):  
Frederik E. Pauwels ◽  
James Schumacher ◽  
Fernando A. Castro ◽  
Troy E. Holder ◽  
Roger C. Carroll ◽  
...  
Keyword(s):  
Interphalangeal Joint ◽  
Distal Interphalangeal Joint ◽  
Distal Interphalangeal

Comparison Between Supraclavicular and Infraclavicular Approach in Subclavian Vein Catheterization in Tertiary Center of Nepal

2020 ◽  
Vol 3 (2) ◽  
pp. 111-115
Author(s):  
Robin Khapung ◽  
Jeju Nath Pokharel ◽  
Kiran Kumar KC ◽  
Kripa Pradhan ◽  
Uma Gurung ◽  
...  
Keyword(s):  
Success Rate ◽  
Subclavian Vein ◽  
Guide Wire ◽  
Femoral Vein ◽  
Access Time ◽  
P Value ◽  
Central Vein ◽  
Chi Square ◽  
Tertiary Center ◽  
Vein Catheterization

Introduction: Central vein catheterization can be introduced in subclavian vein (SCV), internal jugular vein or femoral vein for volume resuscitation and invasive monitoring technique. Due to anatomical advantage and lesser risk of infection subclavian vein is preferred. Either supraclavicular (SC) or infraclavicular (IC) approach could be used for subclavian vein catheterization. The aim of the study was to compare SC and IC approach in ease of catheterization of SCV and record the complications present if any. Methods and materials: This was a hospital based comparative, interventional study conducted from November 2016 to October 2017 in Operation Theater in Bir Hospital. In this study, 70 patients for elective surgical cases meeting the inclusion criteria were randomly enrolled. Then samples were equally divided by lottery into either supraclavicular or infraclavicular approach groups. The Access time, cannulation success rate, attempts made for successful cannulation of vein, easy insertion of catheter and guide wire, approximate inserted length of catheter and associated complications in both groups were recorded. Data was entered in statistical software SPSS 16. Chi-square test was used. P value < 0.05 was considered significant. Results: The mean access time in group SC for SCV catheterization was 2.12 ± 0.81 min compared to 2.83 ± 0.99 min in group IC (p-value= 0.002). The overall success rate in catheterization of the right SCV using SC approach (34 / 35) was better as compared with group IC (33 / 35) using IC approach. First successful attempt in the SC group was 74.28% as compared with 57.14% in the IC group. Conclusion: The SC approach of SCV catheterization can be considered alternative to IC approach in terms of landmark accessibility, success rate and rate of complications.

scholarly journals Anatomy of the Distal End of Flexor Digitorum Longus Tendon and Percutaneous Release Technique: A Cadaveric Study

2019 ◽  
Vol 4 (4) ◽  
pp. 247301141988427
Author(s):  
Baofu Wei ◽  
Ruoyu Yao ◽  
Annunziato Amendola
Keyword(s):  
Distal Phalanx ◽  
Neurovascular Bundle ◽  
Middle Phalanx ◽  
Flexor Digitorum Longus ◽  
Longus Tendon ◽  
Pull Out ◽  
Percutaneous Release ◽  
Significant Difference ◽  
Distal Interphalangeal ◽  
Flexor Digitorum

Background: The transfer of flexor-to-extensor is widely used to correct lesser toe deformity and joint instability. The flexor digitorum longus tendon (FDLT) is percutaneously transected at the distal end and then routed dorsally to the proximal phalanx. The transected tendon must have enough mobility and length for the transfer. The purpose of this study was to dissect the distal end of FDLT and identify the optimal technique to percutaneously release FDLT. Methods: Eight fresh adult forefoot specimens were dissected to describe the relationship between the tendon and the neurovascular bundle and measure the width and length of the distal end of FDLT. Another 7 specimens were used to create the percutaneous release model and test the strength required to pull out FDLT proximally. The tendons were randomly released at the base of the distal phalanx (BDP), the space of the distal interphalangeal joint (SDIP), and the neck of the middle phalanx (NMP). Results: At the distal interphalangeal (DIP) joint, the neurovascular bundle begins to migrate toward the center of the toe and branches off toward the center of the toe belly. The distal end of FDLT can be divided into 3 parts: the distal phalanx part (DPP), the capsule part (CP), and the middle phalanx part (MPP). There was a significant difference in width and length among the 3 parts. The strength required to pull out FDLT proximally was about 168, 96, and 20 N, respectively, for BDP, SDIP, and NMP. Conclusion: The distal end of FDLT can be anatomically described at 3 locations: DPP, CP, and MPP. The tight vinculum brevis and the distal capsule are strong enough to resist proximal retraction. Percutaneous release at NMP can be performed safely and effectively. Clinical Relevance: Percutaneous release at NMP can be performed safely and effectively during flexor-to-extensor transfer.

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