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The Effect of Distal Location of the Volar Short Arm Splint on the Metacarpophalangeal Joint Motion

BACKGROUND: The goals of this study were to compare maximal metacarpophalangeal joint (MCPJ) flexion angles after application of a volar short arm splint at 3 different locations and verify the relations between the three different physical and radiological locations. METHODS: Forty dominant hands o...

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Autores principales: Kim, Joon Yub, Sohn, Dong Wook, Park, Ho Youn, Yoo, Jeong Hyun, Kim, Joo Hak, Jung, Myung Gon, Cho, Jae Ho
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Orthopaedic Association 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4870322/
https://www.ncbi.nlm.nih.gov/pubmed/27247744
http://dx.doi.org/10.4055/cios.2016.8.2.181
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author Kim, Joon Yub
Sohn, Dong Wook
Park, Ho Youn
Yoo, Jeong Hyun
Kim, Joo Hak
Jung, Myung Gon
Cho, Jae Ho
author_facet Kim, Joon Yub
Sohn, Dong Wook
Park, Ho Youn
Yoo, Jeong Hyun
Kim, Joo Hak
Jung, Myung Gon
Cho, Jae Ho
author_sort Kim, Joon Yub
collection PubMed
description BACKGROUND: The goals of this study were to compare maximal metacarpophalangeal joint (MCPJ) flexion angles after application of a volar short arm splint at 3 different locations and verify the relations between the three different physical and radiological locations. METHODS: Forty dominant hands of healthy subjects were analyzed in the study. We defined a transverse skin folding line as a line drawn from the radial aspect of the thenar crease to the ulnar aspect of the distal transverse palmar crease. The distal end of the volar short arm splint was applied on 3 parallel locations to this line. Location A was on this transverse skin folding line; location B was 1 cm proximal to location A; and location C was 1 cm distal to location A. Two orthopedic surgeons measured the maximal MCPJ flexion angles of each finger except the thumb with the application of a volar short arm splint at 3 different locations as well as without a splint as a control. Radiological locations of the 3 different distal ends of the volar short arm splint were also assessed by anteroposterior radiographs of the wrist. RESULTS: When the splint was applied at location A and C, the maximal MCPJ flexion angle decreased to a mean of 83° (91% of control value) and 56° (62% of control value), respectively (compared to the control, p < 0.001). At location B, the maximal MCPJ flexion angle was a mean of 90° (99% of control value); no significant difference was observed compared to the control or without the splint (p = 0.103). On radiography, the average length from the metacarpal head to the distal end of the splint at all fingers decreased in the order of location B, A, and C (29 mm, 19 mm, and 10 mm, respectively; p < 0.001). CONCLUSIONS: We recommend applying the distal end of a volar short arm splint at proximal 1 cm to the transverse skin folding line to preserve MCPJ motion perfectly, which is located at distal 44% of the whole metacarpal bone length radiologically.
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spelling pubmed-48703222016-06-01 The Effect of Distal Location of the Volar Short Arm Splint on the Metacarpophalangeal Joint Motion Kim, Joon Yub Sohn, Dong Wook Park, Ho Youn Yoo, Jeong Hyun Kim, Joo Hak Jung, Myung Gon Cho, Jae Ho Clin Orthop Surg Original Article BACKGROUND: The goals of this study were to compare maximal metacarpophalangeal joint (MCPJ) flexion angles after application of a volar short arm splint at 3 different locations and verify the relations between the three different physical and radiological locations. METHODS: Forty dominant hands of healthy subjects were analyzed in the study. We defined a transverse skin folding line as a line drawn from the radial aspect of the thenar crease to the ulnar aspect of the distal transverse palmar crease. The distal end of the volar short arm splint was applied on 3 parallel locations to this line. Location A was on this transverse skin folding line; location B was 1 cm proximal to location A; and location C was 1 cm distal to location A. Two orthopedic surgeons measured the maximal MCPJ flexion angles of each finger except the thumb with the application of a volar short arm splint at 3 different locations as well as without a splint as a control. Radiological locations of the 3 different distal ends of the volar short arm splint were also assessed by anteroposterior radiographs of the wrist. RESULTS: When the splint was applied at location A and C, the maximal MCPJ flexion angle decreased to a mean of 83° (91% of control value) and 56° (62% of control value), respectively (compared to the control, p < 0.001). At location B, the maximal MCPJ flexion angle was a mean of 90° (99% of control value); no significant difference was observed compared to the control or without the splint (p = 0.103). On radiography, the average length from the metacarpal head to the distal end of the splint at all fingers decreased in the order of location B, A, and C (29 mm, 19 mm, and 10 mm, respectively; p < 0.001). CONCLUSIONS: We recommend applying the distal end of a volar short arm splint at proximal 1 cm to the transverse skin folding line to preserve MCPJ motion perfectly, which is located at distal 44% of the whole metacarpal bone length radiologically. The Korean Orthopaedic Association 2016-06 2016-05-10 /pmc/articles/PMC4870322/ /pubmed/27247744 http://dx.doi.org/10.4055/cios.2016.8.2.181 Text en Copyright © 2016 by The Korean Orthopaedic Association http://creativecommons.org/licenses/by-nc/4.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Kim, Joon Yub
Sohn, Dong Wook
Park, Ho Youn
Yoo, Jeong Hyun
Kim, Joo Hak
Jung, Myung Gon
Cho, Jae Ho
The Effect of Distal Location of the Volar Short Arm Splint on the Metacarpophalangeal Joint Motion
title The Effect of Distal Location of the Volar Short Arm Splint on the Metacarpophalangeal Joint Motion
title_full The Effect of Distal Location of the Volar Short Arm Splint on the Metacarpophalangeal Joint Motion
title_fullStr The Effect of Distal Location of the Volar Short Arm Splint on the Metacarpophalangeal Joint Motion
title_full_unstemmed The Effect of Distal Location of the Volar Short Arm Splint on the Metacarpophalangeal Joint Motion
title_short The Effect of Distal Location of the Volar Short Arm Splint on the Metacarpophalangeal Joint Motion
title_sort effect of distal location of the volar short arm splint on the metacarpophalangeal joint motion
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4870322/
https://www.ncbi.nlm.nih.gov/pubmed/27247744
http://dx.doi.org/10.4055/cios.2016.8.2.181
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