Wrist & Hand Deformities

What is ape hand defined as?

Thenar atrophy with hyperextention of MCP joint

What is ape hand deformity due to?

Median Nerve Palsy

What is bishop's hand deformity defined as?

Hypothenar & Interossei atrophy w/ flexion contracture of ring and little finger

What is Bishop's Hand Deformity due to?

Ulnar Nerve Palsy

What is Bouchard's Nodes defined as?

Osteocartilaginous enlargement at the PIP

What is Bouchard's Nodes associated with?

RA & OA

What is a Boutonniere deformity defined as?

Hyperextension of DIP, Hyper-flexion of PIP

What could a Boutonnieres deformity be seen in?

RA & severe sprains/ Fx of finger

What is claw hand deformity defined as?

Flexion of all 5 digits

What can claw hand deformity be due to?

Ulnar & Median Nerve Palsy

What is Dupuytren's Contracture defined as?

Hypertrophic nodular fibroplasia of the palmar aponeurosis leading to flexion of finger - most ofen ring and little finger

How do you defierentiate between Dupuytren's Contractures and ulnar neuropathy?

Less muscle wasting of hypothenar eminence and no wasting of interossei in Depuytren's

What are Heberden's Nodes defined as?

Small hard nodules at DIP joints

What are Heberden's nodes associated with?

OA

What is a jersey finger defined as?

Rupture of flexor digitorum profundus tendon

How will the patient present with Jersey finger?

Unable to bend the proximal finger and distal phalanges when making fist

What is the name sign for jersey finger?

Sweater Sign

What is mallet finger defined as?

Rupture of the extensor tendon from the insertion on distal phalanx

What is the AKA for mallet finger?

Baseball finger

How will the patient present with Mallet finger?

Unable to extend the fingertip of injured finger

What is Swan Neck Deformity defined as?

Extention of PIP, and flexion of DIP

What is Swan Neck deformity due to?

Splitting of the flexor sheath

What is Swan neck deformity often seen with?

RA

What is trigger finger defined as?

Fusiform swelling in the flexor digitorum superficialis tendon at proximal end

What position is the finger locked in for trigger finger?

Flexed

1 multiple choice option

What can trigger finger be caused by?

RA, OA, or direct trauma

What is Volkman's Contracture?

Ischemic contracture of anterior forearm muscles

What is the most common cause of Volkman's Contracture?

Supracondylar humeral Fx w/ impailed brachial artery

What are the 5 p's of Volkman's Ischemic Contracture?

- Pain with stretch

- Paresis

- Pulseless

- Pallor

= Paresthesia