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The Elbow &Forearm:Anatomy,

Mechanics,&

MechanismsOf Injury

Three Bones

Humerus

Radius

Ulna

2

Fracture

Little League Elbow

Accelerated apophyseal growth region + delay in medial epicondylar growth plateTraction apophysitis + fragmentation of medial epicondylar apophysisAvulsion of medial epicondyle of radial headOsteochondrosis of capitellumStress fx of olecranon epiphysis

Four Joints

Humeroulnar

Humeroradial

Proximal Radioulnar

Distal Radioulnar

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Dislocation

4

5

Muscles

Elbow FlexorsElbow ExtensorsSupinatorsPronatorsWrist FlexorsWrist Extensors

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DeepElbowFlexors

SuperficialElbowFlexors

ElbowExtensors

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Supinator

PronatorTeres

PronatorQuadratus

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WristExtensors

WristExtensors –Close-up

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WristFlexors

WristFlexors –Close-up

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Bursitis

Arteries

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Volkman’s Contracture

Radial Nerve

Ulnar Nerve

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Palpations

Medial Aspect

Ulnar nerveMedial Epicondyle

Pronator TeresFlexor Carpi RadialisPalmaris LongusFlexor Carpi Ulnaris

Posterior Aspect

Olecranon ProcessOlecranon BursaTriceps MuscleAnconeus

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Lateral Aspect

Lateral EpicondyleBrachioradialisExtensor Carpi RadialisLongusExtensor Carpi RadialisBrevis

Anterior Aspect

Cubital FossaBiceps TendonBrachial ArteryMedian Nerve