Nerve Injuries of the Back and Upper Limb

Suprascapular Nerve

• Compensated
• Uncompensated
• Sensory

Axillary Nerve

• Compensated
• Uncompensated
• Sensory

Spinal Accessory Nerve

• Compensated
• Uncompensated
• Sensory

Long Thoracic Nerve (Winging)

• Compensated
• Uncompensated
• Sensory

Upper Subscapular Nerve

• Compensated
• Uncompensated
• Sensor

Musculocutaneous Nerve

• Compensated
• Uncompensated
• Sensory

Wrist Drop - Radial Nerve

• Wrist position at rest
• Axilla versus sprial groove
• Compensated
• Uncompensated
• Sensory

A Graceful Grasp and a Tight Grip

• Intrinsic muscles of the hand - retard flexion of the IP joints
• Extrinsic extensors of the wrist - tether the long flexors

Claw Hand - Ulnar Nerve at Wrist

• Resting position of fingers
• Intrinsic muscles of the hand - lumbricals and interossei flex the MP while holding the IPs in extension.
• Why are the radial two fingers affected?
• Why are the radial two fingers less affected?
• Compensated
• Uncompensated
• Sensory

Ulnar Paradox - Ulnar Nerve at Elbow

• Medial half of flexor digitorum profundus - claw less pronounced at unlar two fingers
• Flexor carpi ulnaris - resting position of the wrist
• The more extensive injury results in less of a deformity - paradox.
• Compensated
• Uncompensated
• Sensory

Hand of Benediction - Median Nerve at Elbow

• Finger position upon making a fist.
• Fist - Intrinsic muscles of radial two fingers are unopposed.
• Compensated
• Uncompensated
• Sensory

Ape Hand - Median Nerve at Wrist (or proximal)

• Thenar atrophy
• Compensated
• Uncompensated
• Sensory

Recurrent Median Nerve (and Superficial Branch) - 2LOAF or not 2LOAF

• Compensated
• Uncompensated
• Sensory