274 results
Osteoarthritis (OA): X-ray features 
 - Joint space narrowing (least specific)
 - Subchondral Cysts (pockets of
Osteoarthritis (OA ... specific) - Subchondral ... joint space) - Subchondral ... Osteoarthritis #OA ... findings #Clinical #knee
Osteoarthritis (OA): Clinical findings
 • Stimulation of joint nociceptors in subchondral bone -> Pain with loading
Osteoarthritis (OA ... nociceptors in subchondral ... Osteoarthritis #OA
Monoarthritis - Differential Diagnosis
Infection (Acute):
 - S. aureus (most common)
 - S. pneumonia
 - Salmonella (in
Usually involves the knee ... Sarcoid - Erosive OA
Diagram of different types of bone tumors that can occur around the knee on XRay -
occur around the knee ... AKA degenerative subchondral ... @docskalski #Knee
Diagram of different types of bone tumors that can occur around the knee on XRay
Age <
occur around the knee ... AKA degenerative subchondral ... @docskalski #Knee
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
Disease Process: OA
Approach to Joint Pain - Diagnostic Framework

1) Chronicity
2) Inflammatory vs Non-Inflammatory
3) Number of Joints Involved

1) Chronicity:
spondyloarthropathies, lupus, OA ... or pseudogout, OA ... • Non-bloody: OA ... gonorrhea, Lyme, OA
Knee Examination
Right Knee - Examination maneuvers include the Lachman (ACL), anterior drawer (ACL), Lateral pivot shift,
Knee Examination ... Right Knee - Examination ... Diagnosis #Sports #Knee
Arthritis of the Hand - Arthritis Patterns

Osteoarthritis:
• Osteoarthritis of the hand usually involves the DIP and
joint-space narrowing, subchondral ... DIP + 1st CMC = OA
Kernig's Sign in Meningitis

Kernig's sign is present if the patient, in the supine position with the
with the hip and knee ... cannot extend the knee ... extension of the knee ... of the opposite knee ... infant cries as the knee