Pathology Detective
Insidious onset; radiating pain, tingling and numbness in wrist and fingers, worse when sleeping
What is carpal tunnel syndrome?
Avulsion fracture of Flexor Digitorum Profundus
What is jersey finger
Extensor carpi radialis longus/brevis, extensor carpi ulnaris
What is wrist extension?
The largest of all the carpal bones
What is the Capitate
Blood accumulation under nail
What is subungual hematoma
MOI: FOOSH; point tender in anatomical snuff box, decreased grip strength, and more pain with ulnar deviation.
What is a scaphoid fracture
Rupture of extensor digitorum tendon
What is Mallet Finger?
Flexor carpi ulnaris and extensor carpi ulnaris
What is Ulnar Deviation?
Most unstable bone of the proximal carpal row
What is the Lunate?
Inflammation over EPB, A(bd)PL, radial styloid process when swinging a racket; positive fingelstein's Test
What is DeQuervain's Syndrome?
Acute, forced ulnar deviation, moderate laxity present with stress test, pain with movement - especially ulnar deviation, point tender from distal radius to trapezium.
What is radial collateral ligament sprain?
Abnormal alignment of the 4th and 5th metacarpal when making a fist. Swelling masking deformity. false joint palpated on 4th MC.
What is a boxers fracture?
flexor pollicis brevis
What is 1st MCP?
The blood supply is good on the distal pole but decreases towards the proximal pole
What is the scaphoid?
Finger pulp infection
What is a felon
Pain on UCL deep within ulnocarpal space, clicking may be reported, swelling palpable rather than visible.
What is a TFCC injury?
Finger with a hyperextended PIP joint and a flexed DIP joint. Stretched volar plate
What is a swan neck deformity?
dorsal interossei
What is abduction of the MCP Joints
Asymmetrical and saddle shaped surface
What is the Trapezium?
Lacerations or scars on dorsal MCP joints
What is Ressell's Sign?
MOI: Forces Hyperextension of wrist; Pain on palmer/ulnar side, decreased grip strength, palmer deformity present in carpals, paresthesia in hand because of pressure on median nerve
Tear in the central slip
What is a boutonniere deformity?
Wrist flexors and their innervation
What are FCR (median), FCU (ulnar), and Palmaris Longus (median)?
Articulates with the 4th and 5th metacarpals and provides attachment to the transverse carpal ligament
What is the hamate?
inflammation of the skin around the nail
What is a paronychia?