Transcript Upper Arm, Elbow, and Forearm Conditions

Upper Arm, Elbow, and Forearm
Conditions
Chapter 12
Anatomy
• Bones
– Humerus
– Radius
– Ulna
• Joints
– Humeroulnar
– Humeroradial
– Proximal Radioulnar
• Ligaments
• Muscles
– 23 overlapping
muscles provide
stability
Humeroulnar
• Hinge joint
• Articulation between the trochlea of the
humerus articulates with the trochlear fossa
of the ulna
• Flexion and extension
Humeroradial
• Gliding joint
• Spherical capitellum of the humerus and the
proximal radius
Proximal Radioulnar Joint
• Pivot Joint
• Head of the radius binded to the radial
notch of the ulna by the annular ligament
• Pronation and supination
Ligaments of the Elbow
• Medial (Ulnar) Collateral Ligament
– Anterior
– Posterior
– Transverse
• Lateral (Radial) Collateral Ligament
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Lateral Ulnar Collateral
Radial Collateral
Annular
Accessory ligaments
Bursae
• Subcutaneous olecranon bursa
– Between the olecranon and the skin surface
Flexion
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Brachialis (primary mover)
Biceps Brachii
Brachioradialis
Flexor Carpi Ulnaris
Flexor Digitorum Superficialis
Extension
• Triceps Brachii (primary mover)
• Anconeus
Pronation
• Pronator Quadratus (primary mover)
• Pronator Teres
Supination
• Supinator (primary Mover)
• Biceps (when elbow is flexed)
Contusions
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Contusions
Olecranon Bursitis
Acute and Chronic Bursitis
Septic and Nonseptic Bursitis
Sprains
• Sprains
• Anterior Capsulitis
• Dislocations
Strains
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Strains
Flexor Strains
Extensor Strains
Compartment Syndrome
Overuse Conditions
• Medial Epicondylitis
• Common Extensor Tendinitis (Lateral
Epicondylitis)
• Neural Entrapment Injuries
Fractures
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Epiphyseal and Avulsion Fractures
Stress Fractures
Osteochondritis Dessicans
Displaced and Undisplaced Fractures