23 results
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
Anterior Shoulder ... rotation of the shoulder ... tensile strength of muscle ... damage to nerves, muscles ... symptoms #msk #orthopedics
Drop Arm Test - Supraspinatus Tear

The drop arm test evaluates for a supraspinatus muscle tear.
Passively adduct
supraspinatus muscle ... Passively adduct the shoulder ... Supraspinatus #Tear #Shoulder ... #sports #msk #orthopedics
Mytomes - Segmental Innervation of Muscles
Shoulder	Abduction	C5	Axillary Nerve
Shoulder	Adduction	C6-C8	Thoracodorsal Nerve
Elbow	Flexion	C5	Musculocutaneous Nerve
Elbow	Extension	C7	Radial Nerve
Wrist	Extension	C6	Radial Nerve
Fingers	Flexion	C8	Median Nerve
Fingers	Abduction	T1	Ulnar Nerve
Hip	Flexion	L2	Nerve to Psoas
Hip	Extension	S1	Inferior Gluteal
Innervation of Muscles ... Shoulder Abduction ... Axillary Nerve Shoulder ... MuscleGroups #MSK #Orthopedics
Chronic Joint Pain - Differential Diagnosis Algorithm 
Intra-Articular
 - Bone
     • Stress
Chronic Joint Pain - Differential ... Fasciitis) - Muscle ... Delayed Onset Muscle ... Intraarticular #MSK #Differential ... Diagnosis #Algorithm #Orthopedics
Pathologic / Fragility Fractures - Differential Diagnosis Algorithm 
Tumours
 - See Bone Lesions Scheme
Paget's Disease
 -
Fragility Fractures - Differential ... Pain/Proximal Muscle ... Pathologic #MSK #Differential ... Diagnosis #Algorithm #Orthopedics
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
predispose to other orthopedic ... common sites: hip, shoulder ... • Differentiate ... SickleCell #Disease #differential
Hydroxyapatite Deposition Disease (HADD) - MSK Radiology
Imaging Findings:
 • Ovoid hypointense structures along the bursal surface
within the deltoid muscle ... ) • Milwaukee shoulder ... arthropathy of the shoulder ... Differential diagnosis ... tenosynovitis: Differentiate
Oncologic Emergencies - Differential Diagnosis Framework

HEMATOLOGIC ONCOLOGIC EMERGENCIES:
Hyperviscosity Syndrome:
 • Spontaneous bleeding
 • Shortness of breath
Emergencies - Differential ... • Chest and shoulder ... Constipation • Muscle ... emergencies #oncology #differential
Orthopedic Emergencies
Compartment Syndrome
 • An increase in compartment pressure to the point where tissue perfusion is
Orthopedic Emergencies ... affected part should ... in irreversible muscle ... and underlying muscle ... Hypovolemic Shock #Orthopedics
Scleroderma Like Conditions - Differential Diagnosis
Eosinophilic Fasciitis:
 - Orange peel induration (peau d'orange) of proximal extremities
Like Conditions - Differential ... digits - Skeletal muscle ... and/or cardiac muscle ... patches on back, shoulder ... #Scleroderma #Differential