The Association of a Floating Elbow and a Homolateral Dislocated Floating Shoulder (About a Case)

The floating elbow is a rare lesion, characterized by the presence of a fracture of the humerus and one or both bones of the homolateral forearm. Double disturbances of the upper suspensory shoulder complex, commonly referred to as “floating shoulder” injuries, are ipsilateral fractures of the clavicle and scapula with loss of bone attachment of the glenoid. The combination of a floating elbow and floating shoulder is extremely rare, added an ipsilateral dislocation of the glenohumeral remains exceptional. No case has been reported in the literature of such a lesional association. This observation makes it possible to describe an extremely rare lesion, by proposing the therapeutic attitude and the prognosis.

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Evaluation of an adjustable support shoulder exoskeleton on static and dynamic overhead tasks

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/1541931218621184 ◽

2018 ◽

Vol 62 (1) ◽

pp. 804-808 ◽

Cited By ~ 8

Author(s):

Logan Van Engelhoven ◽

Nathan Poon ◽

Homayoon Kazerooni ◽

Alan Barr ◽

David Rempel ◽

...

Keyword(s):

Muscle Activity ◽

Muscle Activation ◽

Peak Torque ◽

Industrial Workers ◽

Human Engineering ◽

Shoulder Injuries ◽

Flexor Muscle ◽

Work Related ◽

Upper Trapezius ◽

Shoulder Complex

Introduction: Overhead tasks increase the risk of work related musculoskeletal disorders to industrial workers. A shoulder supporting exoskeleton with adjustable and angle dependent torque (referred to as shoulderX in this paper for brevity) was designed and built at the University of California Berkeley Human Engineering and Robotics Laboratory for workers performing overhead tasks. shoulderX was designed specifically to reduce the exposure to large muscle exertion forces on the shoulder complex from overhead work. Methods: We evaluated shoulderX by measuring the muscle activation of the upper trapezius (UT), anterior deltoid (AD), triceps long head (TR), and infraspinatus (IF) during static and dynamic overhead tasks. Thirteen male subjects with experience in the construction or manufacturing industries were recruited to perform overhead tasks using light (.45 kg) and heavy (2.25 kg) weight tools with four exoskeleton support levels (0, 8.5, 13.0, 20.0 Nm peak torque). Results: During all conditions, the wearer’s shoulder flexor muscle activity of UT, AD were reduced with increasing strength of shoulderX by up to 80%. Subjects unanimously preferred the use of shoulderX over the unassisted condition for all task types (static and dynamic overhead tasks) and tool weights (.45 kg and 2.25 kg). Conclusion: shoulderX reduces the wearer’s primary muscle activity in overhead static and dynamic work and results in a more desirable and balanced pattern of shoulder complex activation. This investigation indicates that shoulderX reduces the risk of work related shoulder injuries during overhead tasks.

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“Floating shoulder” injuries

International Journal of Emergency Medicine ◽

10.1186/s12245-016-0110-y ◽

2016 ◽

Vol 9 (1) ◽

Cited By ~ 2

Author(s):

Kenneth Heng

Keyword(s):

Shoulder Injuries ◽

Floating Shoulder

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The Superior Shoulder Suspensory Complex, Floating Shoulder Injuries, and Other Segmental Injuries to the Shoulder Girdle

10.1016/b978-0-323-76180-2.00017-9 ◽

2022 ◽

pp. 126-135

Author(s):

Chris Langhammer ◽

Nicholas C. Danford

Keyword(s):

Shoulder Girdle ◽

Shoulder Injuries ◽

Floating Shoulder

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Incidence of Shoulder Injury in Elite Wheelchair Athletes Differ Between Sports: A Critically Appraised Topic

Journal of Sport Rehabilitation ◽

10.1123/jsr.2017-0360 ◽

2019 ◽

Vol 28 (3) ◽

pp. 294-298 ◽

Cited By ~ 6

Author(s):

Jessica R. Fairbairn ◽

Kellie C. Huxel Bliven

Keyword(s):

Injury Risk ◽

Sport Participation ◽

Current Data ◽

Shoulder Injuries ◽

Shoulder Injury ◽

Bottom Line ◽

Injury Rates ◽

Wheelchair Athletes ◽

Epidemiology Data ◽

Shoulder Complex

Clinical Scenario: Until recently, injury epidemiology data on elite Paralympic athletes were limited. Current data suggest high rates of shoulder injury in wheelchair athletes. Differences in shoulder injury rates between sports have not been reported in this population. Clinical Question: Is the incidence of shoulder injury in elite wheelchair athletes different between sports? Summary of Key Findings: Shoulder injury rates are high in elite wheelchair athletes, particularly in sports such as field events and fencing that require a stable base (eg, trunk, core control) from which to perform. Wheelchair racing requires repetitive motions that contribute to shoulder injuries, but rates are lower than field sports and fencing. Wheelchair curling and sledge hockey have low shoulder injury risk. Clinical Bottom Line: Shoulder injury rates vary based on sport in elite wheelchair athletes. In addition to incorporating shoulder complex specific rehabilitation for overuse shoulder injuries, clinicians should focus on core and trunk stabilization in elite wheelchair athletes competing in sports, such as field events and fencing. Strength of Recommendation: Grade C evidence exists that reports shoulder injury rates among elite wheelchair athletes differ based on sport participation.

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Do Not Forget the Glenopolar Angle in Floating Shoulder Injuries

JBJS Orthopaedic Highlights Trauma ◽

10.2106/jbjs.ot.m.00343 ◽

2013 ◽

Vol 3 (8) ◽

pp. e7

Author(s):

Clifford Barry Jones

Keyword(s):

Shoulder Injuries ◽

Floating Shoulder ◽

Glenopolar Angle

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Clinical outcomes following conservative and surgical management of floating shoulder injuries: a systematic review

Journal of Shoulder and Elbow Surgery ◽

10.1016/j.jse.2019.09.029 ◽

2020 ◽

Vol 29 (3) ◽

pp. 634-642 ◽

Cited By ~ 1

Author(s):

Alex R. Dombrowsky ◽

Sellers Boudreau ◽

Jon Quade ◽

Eugene W. Brabston ◽

Brent A. Ponce ◽

...

Keyword(s):

Systematic Review ◽

Clinical Outcomes ◽

Surgical Management ◽

Shoulder Injuries ◽

Floating Shoulder

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A Review of Common Shoulder Injuries

MacEwan University Student eJournal ◽

10.31542/muse.v4i1.1891 ◽

2020 ◽

Vol 4 (1) ◽

Author(s):

Ben Rathje ◽

Caelen Begg ◽

Liv Helland ◽

Pari Kyars

Keyword(s):

Range Of Motion ◽

Compressive Force ◽

Neuromuscular Control ◽

The Body ◽

Activity Level ◽

Daily Activities ◽

Mechanism Of Injury ◽

Shoulder Injuries ◽

Surgical Methods ◽

Shoulder Complex

The shoulder complex is an intricate combination of bones, muscles, and ligaments that function synergistically to move the arm. While the shoulder is a very mobile joint, allowing for movement in all planes, it is not an apparatus known for stability. The injuries that can be sustained by the shoulder are often extensive and could give rise to further injuries in other aspects of the body, including the arm, back, and sternum. Two of the most common injuries that can be sustained by the shoulder include clavicular fractures and anterior shoulder dislocations. Clavicular fractures are most commonly sustained by direct compressive force directed towards the sternum and applied to the ipsilateral shoulder, while anterior dislocations commonly occur as a result of direct force projected anteriorly while the arm is externally rotated and abducted. The mechanism of injury for both clavicular fractures and anterior dislocations dictates the injuries' severity which subsequently determines the extent of treatment and rehabilitation that is needed. Both conservative and surgical methods are effective in treating shoulder injuries depending upon an individual's activity level and the extent of the injury. Following treatment, proper rehabilitation of the injury is crucial to regain the shoulder's active pain-free range of motion, strength of surrounding muscles, and neuromuscular control, while ensuring a timely return to daily activities.

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