12 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
functional deficit and arthritis ... distal to distal ulna ... , pain with wrist ... flexion and extension ... #XRay #Diagnosis
Common Hand Fractures on X-Ray
Mallet finger - injury to the lateral extensor slips
Boutonniere deformity - injury
to the lateral extensor ... central band of extensor ... thumb injury to ulnar ... #Radiology #Wrist ... #differential #diagnosis
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
The proximal carpal ... extended, and when ulnar ... extensors (ECU, ... ECRB) The distal carpal ... orthopedics #clinical #video
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
Thomas" sign to diagnosis ... box, pain with wrist ... extension • Possible ... #TerryThomas #Wrist ... #Radiology #XRay
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Dislocation On lateral wrist ... extension • ... associated injuries: Carpal ... #Carpal #Radiology ... #XRay #Diagnosis
Arthritis of the Hand - Arthritis Patterns

Osteoarthritis:
• Osteoarthritis of the hand usually involves the DIP and
nodes - DIP • XRAY ... subluxation causing ulnar ... • MCP + PIP + Wrist ... Hemochromatosis • Wrist ... patterns #hand #diagnosis
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... Abduction - C8-T1 (ulnar ... Adduction - C7-T1 (ulnar ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis
Rheumatoid arthritis (RA): Pathogenesis and Joint diseases features
 • RA affects 1% of population, women >
Rheumatoid arthritis ... Swelling notable on Xray ... boggy" joints, esp carpal ... Boutonniere's ulnar ... signs #symptoms #diagnosis
Ulnar Styloid Tenosynovitis Effusion Milking in Rheumatoid Arthritis

How to demonstrate tenosynovitis- milk it to increase pressure
Ulnar Styloid Tenosynovitis ... in Rheumatoid Arthritis ... often has extensor ... carpi ulnaris involvement ... #clinical #video
Extensor Carpi Ulnaris (ECU) Synergy Test for ECU Tendinitis

With the patient's hand supinated, the examiner grasps
Extensor Carpi Ulnaris ... along the dorsal ulnar ... aspect of the wrist ... #carpi #ulnaris ... Tendinitis #clinical #video