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The Anatomy in Shoulder Instability

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360° Around Shoulder Instability

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Abstract

The shoulder is the most mobile and least stable joint of the human body. The bony anatomy determines a very limited stability, which has to be maintained by the surrounding soft tissues that act as static stabilizers. In addition, dynamic stability is provided by the musculotendinous units of the rotator cuff and scapulothoracic joint.

The clinical pattern of the instability determines the anatomical lesions that may appear. Overall, traumatic instabilities originate detachments of the labrum and pathological stretching of the capsuloligamentous complex that, in absence of healing, develop recurrent instability. On the other hand, atraumatic instabilities might course with absence of injury of the static stabilizers, and only increased capsular volume is found.

Bone deficits, as on the glenoid rim or the humeral head, predispose to recurrent instability even after soft-tissue stabilization procedures, so preoperative assessment of bone loss is crucial to obtain favorable outcomes in terms of patient satisfaction and recurrence.

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Author information

Authors and Affiliations

  1. Arthrosport Zaragoza, Zaragoza, Spain

    Ángel Calvo Díaz & Pablo Carnero Martín de Soto

  2. IMED Elche Hospital, Alicante, Spain

    Néstor Zurita Uroz

Authors
  1. Ángel Calvo Díaz
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  2. Pablo Carnero Martín de Soto
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  3. Néstor Zurita Uroz
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Editor information

Editors and Affiliations

  1. Shoulder and Upper Limb Department, St. Luke's Hospital, Bielsko-Biała, Poland

    Roman Brzóska

  2. Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, Italy

    Giuseppe Milano

  3. Istituto Ortopedico Gaetano Pini, Prima Clinica Ortopedica, Milan, Italy

    Pietro S. Randelli

  4. Department of Traumatology, University Medical Centre Ljubljana, Ljubljana, Slovenia

    Ladislav Kovačič

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Calvo Díaz, Á., Carnero Martín de Soto, P., Zurita Uroz, N. (2020). The Anatomy in Shoulder Instability. In: Brzóska, R., Milano, G., Randelli, P., Kovačič, L. (eds) 360° Around Shoulder Instability. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-61074-9_2

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  • DOI: https://doi.org/10.1007/978-3-662-61074-9_2

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-662-61073-2

  • Online ISBN: 978-3-662-61074-9

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