8 results
Lachman test in ACL-deficient Knee

This patient has pathologic varus alignment across the knee and a chronic
Lachman test in ... HTO) to correct his ... PhysicalExam #Sports #Ortho ... #anterior #cruciate ... #ligament #msk
Prior anterior glenohumeral joint dislocation with Hill-Sachs fracture and Perthes lesion
Imaging Findings:
 • The arrow is
joint dislocation ... GH dislocations ... surgical repair Differential ... lesion #clinical #mri ... Radiology #diagnosis #msk
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential ... Seronegative Reactive Syndrome ... Intra-articulation fracture ... - Patellar dislocation ... #diagnosis #msk
Posterior Knee Dislocation Injury
Specifically, POSTERIOR KNEE DISLOCATIONS can have significant associated injury that needs unique approach
Posterior Knee Dislocation ... nerve injury (25%) TEST ... Check hip and ankle ... Compartment syndrome ... #Injury #msk #clinical
Haglund Syndrome - MSK Radiology
Imaging Findings:
 • The Haglund Deformity (enlarged superior margin calcaneal posterior process)
- MSK Radiology ... tendon (>7mm) with anterior ... Differential diagnosis ... • Stress fracture ... Heel #clinical #mri
Transient Patellar Dislocation - MSK Radiology
Imaging Findings:
 • Hyperintense marrow edema of the anterolateral femoral condyle
- MSK Radiology ... disrupted at the anterior ... injury of the knee ... Differential diagnosis ... #clinical #mri #
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
cord infarct • HIV ... • Provocative Tests ... absent anal wink test ... Imaging studies: • MRI ... #differential #
Tenosynovitis of the peroneal tendons due to hypertrophic peroneal tubercle
Imaging Findings:
 • Large volume ofT2-hyperintense fluid
non-displaced fracture ... Differential diagnosis ... tendon subluxation/dislocation ... tubercle #clinical #mri ... Radiology #diagnosis #msk