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Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
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Multidirectional Instability: Natural History and Evaluation.

Miguel García Navlet1, Cristina Victoria Asenjo-Gismero2

  • 1Shoulder and Elbow Unit, Upper extremity department at ASEPEYO Hospital Coslada, Madrid, Spain.

The Open Orthopaedics Journal
|October 31, 2017
PubMed
Summary

Multidirectional instability (MDI) is symptomatic, involuntary shoulder instability in multiple directions, distinct from hyperlaxity. Accurate identification requires understanding shoulder biomechanics and clinical signs for optimal treatment.

Keywords:
HyperlaxityLaxityMultidirectional instabilityScapular dyskinesiaShoulder instability

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Area of Science:

  • Orthopedics
  • Sports Medicine
  • Shoulder Surgery

Background:

  • Multidirectional instability (MDI) presents a significant challenge in orthopedic surgery.
  • MDI is defined as symptomatic, involuntary instability in two or more directions.
  • It can be associated with hyperlaxity but may also occur independently.

Purpose of the Study:

  • To review the literature on multidirectional instability.
  • To highlight the importance of accurate patient identification and classification.

Main Methods:

  • A comprehensive search of online databases was conducted.
  • Relevant published literature was reviewed.

Main Results:

  • Current literature shows inconsistencies in defining and identifying patients with MDI.
  • Unclear definitions and diagnostic criteria are common.

Conclusions:

  • Understanding complex shoulder biomechanics is crucial for diagnosing MDI.
  • Awareness of typical clinical features and examination signs aids in patient identification and classification.
  • Accurate diagnosis enables tailored treatment strategies for MDI patients.