Chronic Pseudoparalysis Needs to Be Distinguished From Pseudoparesis: A Structural and Biomechanical Analysis

Background: Chronic pseudoparalysis is generally defined as the inability to actively elevate the arm above 90° with free passive range of motion and no neurological deficits. It has been suggested that this arbitrary cutoff needs to be refined. Purpose: To analyze whether there are structural and b...

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Veröffentlicht in:	The American journal of sports medicine 2021-02, Vol.49 (2), p.291-297
Hauptverfasser:	Ernstbrunner, Lukas, El Nashar, Rany, Favre, Philippe, Bouaicha, Samy, Wieser, Karl, Gerber, Christian
Format:	Artikel
Sprache:	eng
Schlagworte:	Biomechanical Phenomena Biomechanics Case-Control Studies Humans Life Sciences & Biomedicine Magnetic resonance imaging Orthopedics Paralysis - diagnosis Paresis - diagnosis Range of Motion, Articular Retrospective Studies Rotator cuff Rotator Cuff Injuries - diagnosis Rotator Cuff Injuries - physiopathology Science & Technology Shoulder Joint - physiopathology Sport Sciences Sports medicine
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Zusammenfassung:	Background: Chronic pseudoparalysis is generally defined as the inability to actively elevate the arm above 90° with free passive range of motion and no neurological deficits. It has been suggested that this arbitrary cutoff needs to be refined. Purpose: To analyze whether there are structural and biomechanical differences in patients with chronic pseudoparalysis and those with chronic pseudoparesis. Study Design: Case-control study; Level of evidence, 3. Methods: In this retrospective study, 50 patients with chronic massive rotator cuff tears (mRCTs; ≥2 tendons) and free passive and active scapular plane abduction
ISSN:	0363-5465 1552-3365
DOI:	10.1177/0363546520969858