Common Extensor Complex Is a Predictor to Determine the Stability in Simple Posterolateral Elbow Dislocation: Analysis of MR Images of Stable vs. Unstable Dislocation

Simple posterolateral elbow dislocations (SPLED) may be treated nonoperatively using closed reduction, followed by controlled mobilization. However, the extent of soft tissue injuries might affect the choice of treatment, rehabilitation approach, and prognosis. The purpose of this study is to compar...

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Main Authors: Chul-Hyun Cho, Beom-Soo Kim, Jaehyuck Yi, Hoseok Lee, Du-Han Kim
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/9/10/3094
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author Chul-Hyun Cho
Beom-Soo Kim
Jaehyuck Yi
Hoseok Lee
Du-Han Kim
author_facet Chul-Hyun Cho
Beom-Soo Kim
Jaehyuck Yi
Hoseok Lee
Du-Han Kim
author_sort Chul-Hyun Cho
collection DOAJ
description Simple posterolateral elbow dislocations (SPLED) may be treated nonoperatively using closed reduction, followed by controlled mobilization. However, the extent of soft tissue injuries might affect the choice of treatment, rehabilitation approach, and prognosis. The purpose of this study is to compare the characteristics of soft tissue injuries between patients with unstable and stable SPLED using MRI findings. Thirty MRIs of elbows with SPLED (unstable group (<i>n</i> = 15); stable group (<i>n</i> = 15)) were randomly reviewed by two experienced musculoskeletal radiologists. Soft tissue injuries were characterized as an intact, partial tear or complete tear for the: medial collateral ligament (MCL) complex, common flexor complex, lateral collateral ligament (LCL) complex, common extensor complex, anterior capsule, and posterior capsule. Moderate to substantial interobserver reliability and substantial to perfect intraobserver reliability were observed for medial and lateral complexes in SPLED. The proportion of soft-tissue injuries of the common extensor complex were significantly different between the unstable (four partial tears and 11 complete tears) and stable groups (11 partial tears and four complete tears). In conclusion, based on MRI findings, the degree of common extensor complex injuries may be a predictor of stability and help inform treatment decisions for SPLED.
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spelling doaj.art-decf88b4cc41445697e5921c818592db2023-11-20T15:05:41ZengMDPI AGJournal of Clinical Medicine2077-03832020-09-01910309410.3390/jcm9103094Common Extensor Complex Is a Predictor to Determine the Stability in Simple Posterolateral Elbow Dislocation: Analysis of MR Images of Stable vs. Unstable DislocationChul-Hyun Cho0Beom-Soo Kim1Jaehyuck Yi2Hoseok Lee3Du-Han Kim4Department of Orthopedic Surgery, School of Medicine, Keimyung University, Daegu 42601, KoreaDepartment of Orthopedic Surgery, School of Medicine, Keimyung University, Daegu 42601, KoreaDepartment of Radiology, School of Medicine, Keimyung University, Daegu 42601, KoreaDepartment of Radiology, School of Medicine, Kyungpook National University, Daegu 41566, KoreaDepartment of Orthopedic Surgery, School of Medicine, Keimyung University, Daegu 42601, KoreaSimple posterolateral elbow dislocations (SPLED) may be treated nonoperatively using closed reduction, followed by controlled mobilization. However, the extent of soft tissue injuries might affect the choice of treatment, rehabilitation approach, and prognosis. The purpose of this study is to compare the characteristics of soft tissue injuries between patients with unstable and stable SPLED using MRI findings. Thirty MRIs of elbows with SPLED (unstable group (<i>n</i> = 15); stable group (<i>n</i> = 15)) were randomly reviewed by two experienced musculoskeletal radiologists. Soft tissue injuries were characterized as an intact, partial tear or complete tear for the: medial collateral ligament (MCL) complex, common flexor complex, lateral collateral ligament (LCL) complex, common extensor complex, anterior capsule, and posterior capsule. Moderate to substantial interobserver reliability and substantial to perfect intraobserver reliability were observed for medial and lateral complexes in SPLED. The proportion of soft-tissue injuries of the common extensor complex were significantly different between the unstable (four partial tears and 11 complete tears) and stable groups (11 partial tears and four complete tears). In conclusion, based on MRI findings, the degree of common extensor complex injuries may be a predictor of stability and help inform treatment decisions for SPLED.https://www.mdpi.com/2077-0383/9/10/3094elbowdislocationligamenttendontearMRI
spellingShingle Chul-Hyun Cho
Beom-Soo Kim
Jaehyuck Yi
Hoseok Lee
Du-Han Kim
Common Extensor Complex Is a Predictor to Determine the Stability in Simple Posterolateral Elbow Dislocation: Analysis of MR Images of Stable vs. Unstable Dislocation
Journal of Clinical Medicine
elbow
dislocation
ligament
tendon
tear
MRI
title Common Extensor Complex Is a Predictor to Determine the Stability in Simple Posterolateral Elbow Dislocation: Analysis of MR Images of Stable vs. Unstable Dislocation
title_full Common Extensor Complex Is a Predictor to Determine the Stability in Simple Posterolateral Elbow Dislocation: Analysis of MR Images of Stable vs. Unstable Dislocation
title_fullStr Common Extensor Complex Is a Predictor to Determine the Stability in Simple Posterolateral Elbow Dislocation: Analysis of MR Images of Stable vs. Unstable Dislocation
title_full_unstemmed Common Extensor Complex Is a Predictor to Determine the Stability in Simple Posterolateral Elbow Dislocation: Analysis of MR Images of Stable vs. Unstable Dislocation
title_short Common Extensor Complex Is a Predictor to Determine the Stability in Simple Posterolateral Elbow Dislocation: Analysis of MR Images of Stable vs. Unstable Dislocation
title_sort common extensor complex is a predictor to determine the stability in simple posterolateral elbow dislocation analysis of mr images of stable vs unstable dislocation
topic elbow
dislocation
ligament
tendon
tear
MRI
url https://www.mdpi.com/2077-0383/9/10/3094
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