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Elbow Instability

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Abstract

The elbow is a trochleoginglymoid joint which configuration makes the elbow a fairly constrained and one of the most congruous and stable joints of the body.

The normal range of motion of the elbow is approximately 0° of extension and 140° of flexion. A functional range of motion for activities of daily living has been described to be of 30–130°, and the functional arc of throwing ranges from 20° to 130°.

Although it is not a weight-bearing joint, it can be subjected to high loads when practicing racket or throwing sports or in gymnastics. As a consequence of these continued sport activities, elbow stability, due to static and dynamic constraints, can be compromised.

The elbow is the second most commonly dislocated major joint, and 15–35 % of elbow dislocations can have residual instability. Elbow dislocations represent 11–28 % of all elbow injuries, with an annual incidence of 6–8 cases per 100,000 people.

The symptoms of the instability in athletes can occur following a single traumatic event or may be due to repetitive stress leading to chronic laxity such as in a throwing athlete. The focus of this chapter will be on elbow instabilities connected to sport activities.

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Correspondence to Luigi Adriano Pederzini .

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Pederzini, L.A., Di Palma, F. (2016). Elbow Instability. In: Volpi, P. (eds) Arthroscopy and Sport Injuries. Springer, Cham. https://doi.org/10.1007/978-3-319-14815-1_29

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  • DOI: https://doi.org/10.1007/978-3-319-14815-1_29

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-14814-4

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