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Hand and Wrist Mrs. Dobbins
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Upper Extremity Forearm Radius (Thumb side) Ulna (Pinky side) Wrist
Shoulder Gleniod Humeral joint Humerus Gleniod Fossa Scapula (Shoulder Blade) Clavicle (Collarbone) Upper Arm Forearm Radius (Thumb side) Ulna (Pinky side) Wrist Carpals! Hand and Fingers
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Thumb Side vs. 5th Phalange
RADIUS ULNA
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Articular cartilage
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Navicular Never Scaphoid
Lunate Lower Triquetrum Tilley's Pisiform Pants Trapezium Trouble Trapezoid Times Capitate Can Hamate Happen
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Muscular Hand Anatomy
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Finger Mechanism
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EXTENSOR (FINGER) TENDON INJURY
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Wrist Motion
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MOTIONS
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Boxer’s Fracture
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Skier’s Thumb (Gamekeeper’s)
Acute instability of the Ulnar collateral ligament (UCL) The most common soft tissue injury of the thumb Metacarpophalangeal (MP) joint is UCL sprain
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Mallet Finger (Dropped Finger)
Mallet finger refers to a condition in which the end joint of a finger bends but will not straighten by itself. Caused by sudden flexion of the distal interphalangeal (DIP) joint while the finger is in an extended position Often occurs from a blow to the tip of an extended finger In this situation, the joint can be pushed straight but will not hold that position on its own. Traumatic avulsion of the DIP extensor tendon of the finger Most common extensor tendon injury Sometimes called baseball finger or drop finger Tendon may be stretched, completely torn, or associated with a bony avulsion
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Boutonniere Deformity (Buttonhole)
The boutonniere deformity refers to a finger which is bent in a particular way: bent down at the middle joint and bent back at the end joint When the finger is hit or bent forcefully in just the wrong way, the sheet on the top of the finger (the central slip of tendon) tears away from its attachment to the top of the middle finger bone.
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Jersey Finger (FDP TENDON AVULSION)
Traumatic avulsion of the flexor Digitorum profundis (FDP) tendon The ring finger is most commonly affected DIP hyperextension (i.e. “jammed finger”) Similar to Mallet finger injury – outcome dependant on whether flexion or hyperextension injury occurred Most commonly occurs in football when grabbing the jersey of an opponent who is pulling away
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Bennett's Fracture A Bennett's Fracture is a fracture + dislocation of the Metacarpal bone at the base of the thumb.
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Nerve Root Scheme
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Carpal Tunnel
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DE QUERVAINS SYNDROME A common condition of inflammation around the tendons on the thumb side of the wrist.
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Ligamentous Laxity
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Now for the Injuries....
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Forearm (Radius) fracture
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Ulnar Fracture
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Colles Fracture
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Colles fracture
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Metacarpal Fracture
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Metacarpal Fractures
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Scaphoid (Navicular) Fracture
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Hook of the Hamate Fracture
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Finger Amputation (Complete avulsion)
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Re- attachment
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Finger Avulsion (Justin)
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Hand Laceration (Rachel's)
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The Test may look like this....
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Scapula Humerus Clavicle Acromion Coracoid Radius Ulna Carpals Metacarpals Phalanges Spine of Scapula SC Joint AC Joint GH Joint MP Joint PIP Joint DIP Joint Medial Epicondyle Lateral Epicondyle Olecranon Radial Head Biceps Brachii Triceps Brachii Brachialis Brachioradialis Coracobrachialis Extensor Muscle Mass Ext. Carpi Radialis Ext. Digitorim Ext. Pollicis Longus/Brevis Flexor Muscle Mass Flex. Carpi Ulnaris Flex. Carpi Radialis Palmaris Ulnar Collateral Lig. Radial Collateral Lig. Anatomical Snuff Box Thenar Muscles Hypothenar Muscles
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QUESTIONS / COMMENTS? Done.... Now study
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