11 results
Peroneal Tendon Dislocation after Trauma

The retinaculum is torn leading to dislocation of the tendon, leaving the
Peroneal Tendon ... tendon, leaving the canal ... #Trauma #msk #clinical ... orthopedics #sports #ankle ... #physicalexam
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... L2, L3, L4 • Ankle ... Narrowing of spinal canal ... Dermatomes #Myotomes #diagnosis ... sensory #motor #leg #physicalexam
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
spacing between all carpal ... Thomas" sign to diagnosis ... #Radiology #XRay ... #Diagnosis #Management ... Orthopedics #Sports #MSK
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
: Scapholunate dissociation ... , perilunate dislocation ... #Radiology #XRay ... #Diagnosis #Management ... Orthopedics #Sports #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
associated injuries: Carpal ... #Wrist #Carpal ... #Radiology #XRay ... #Diagnosis #Management ... Orthopedics #Sports #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
commonly fractured carpal ... injuries: Perilunate dislocation ... #Radiology #XRay ... #Diagnosis #Management ... Orthopedics #Sports #MSK
Tenosynovitis of the peroneal tendons due to hypertrophic peroneal tubercle
Imaging Findings:
 • Large volume ofT2-hyperintense fluid
to hypertrophic peroneal ... Differential diagnosis ... tendon subluxation/dislocation ... mri #clinical #Radiology ... #diagnosis #msk
Pudendal Neuralgia
• Pudendal nerve arises from S2-S4 roots and innervates perineal structures
• Nerve is prone to
and innervates perineal ... Pudendal (Alcock) canal ... block can help diagnose ... • Important to diagnose ... #Radiology #MSK
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
- Differential Diagnosis ... • Sciatica • Tarsal ... tunnel syndrome, peroneal ... #lower #extremity ... #msk #physicalexam
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
specific questions to ask ... in the past - personal ... one post op Cardiology ... events or death (CARP ... stratification #diagnosis