9 results
Lachman test in ACL-deficient Knee

This patient has pathologic varus alignment across the knee and a chronic
HTO) to correct his ... #ACL #Knee #Injury ... #ACLTear #clinical ... Sports #Ortho #anterior ... cruciate #ligament #msk
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Bone Deformity / ... Diagnosis Algorithm ... Legg-Calve-Perthes Disease Knee ... #MSK #Differential ... #Diagnosis #Algorithm
Lachman Test for ACL Injury

The patient lies supine and with the knee in ~20-30 degrees of
supine and with the knee ... degrees of flexion, hip ... One hand supports ... #ACL #Injury #Anterior ... #physicalexam #msk
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Spinal Cord Injury ... Abdominal Reflex L2 Anterior ... Medial Thigh Hip ... NerveRoots #Levels #differential ... #diagnosis #Neurology
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential ... Diagnosis Framework ... bearing after injury ... - Aneurysmal bone ... #diagnosis #msk
Orthopedic Dislocations (Shoulder, Elbow and Hip) - Diagnosis and Management Summary
Shoulder Dislocation
 • Fall on the
) - Diagnosis and ... rotation) • Anterior ... elbow fully as a test ... of dash board injury ... knee are flexed
Prior anterior glenohumeral joint dislocation with Hill-Sachs fracture and Perthes lesion
Imaging Findings:
 • The arrow is
humeral head) of the deformity ... surgical repair Differential ... • Bony Bankart ... Similar injury to ... #msk
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
tenderness - No joint deformity ... e.g., congenital hip ... #Joint #Pain #MSK ... approach #workup #differential ... #diagnosis #arthritis
Transient Patellar Dislocation - MSK Radiology
Imaging Findings:
 • Hyperintense marrow edema of the anterolateral femoral condyle
Dislocation - MSK ... disrupted at the anterior ... of the knee ... Differential diagnosis ... #msk