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Related Concept Videos

Muscles of the Shoulder01:23

Muscles of the Shoulder

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The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
Anterior Thoracic Muscles
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Oxymercuration-Reduction of Alkenes02:36

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Block Diagram Reduction01:22

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The process of deriving the transfer function of a control system often involves reducing its block diagram to a single block. This simplification can be achieved through a series of strategic operations, including relocating branch points and comparators. These operations preserve the overall function of the system while allowing for easier manipulation and combination of blocks.
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Phase I Reactions: Reductive Reactions01:27

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Phase I biotransformation reductive reactions are chemical processes that modify drugs by introducing or revealing polar functional groups via reduction. Enzymes called reductases catalyze these reactions, playing a pivotal role in drug metabolism by transforming lipophilic drugs into more polar, water-soluble metabolites for easy excretion. An essential type of reductive reaction is the carbonyl group reduction, where aldehydes and ketones are reduced to alcohols. An example is the...
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Esters to Alcohols: Hydride Reductions01:17

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Esters are reduced to primary alcohols when treated with a strong reducing agent like lithium aluminum hydride. The reaction requires two equivalents of the reducing agent and proceeds via an aldehyde intermediate.
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Updated: Feb 16, 2026

Reverse Total Shoulder Arthroplasty
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Immediate Reduction of Shoulder Dislocation.

Greg Valceschini, Jim Macintyre, Warren B Howe

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    |December 26, 2017
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    Summary
    This summary is machine-generated.

    Anterior shoulder dislocations are common sports injuries. Prompt diagnosis and reduction techniques are key, followed by tailored rehabilitation to prevent re-injury in younger patients or restore mobility in older individuals.

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    Area of Science:

    • Orthopedic Surgery
    • Sports Medicine
    • Traumatology

    Background:

    • Anterior shoulder dislocations are frequent injuries encountered in sports medicine.
    • While rare, associated fractures and neurovascular complications necessitate thorough pre-reduction assessment via physical examination and radiography.
    • Prompt and accurate diagnosis is crucial for effective management.

    Purpose of the Study:

    • To present a preferred method for reducing anterior shoulder dislocations.
    • To highlight the importance of pre-reduction evaluation for associated injuries.
    • To outline age-specific post-reduction rehabilitation strategies.

    Main Methods:

    • The study describes a preferred reduction technique, referencing the method by Matsen et al.
    • Emphasis is placed on the necessity of physical examination and X-ray imaging prior to reduction.
    • Age-specific rehabilitation protocols are discussed.

    Main Results:

    • The described reduction technique is presented as a preferred option.
    • Identification of associated fractures and neurovascular injuries is critical before reduction.
    • Post-reduction management differs based on patient age.

    Conclusions:

    • Appropriate reduction techniques and thorough pre-reduction assessment are vital for managing anterior shoulder dislocations.
    • For patients under 30, post-reduction immobilization and strengthening exercises are recommended to prevent redislocation.
    • For older patients, a focus on range-of-motion exercises is more critical for optimal recovery.