Joints are movable connections between bones in the body. Joints consist of capsule, cavity, synovial fluid, cartilage, ligaments and muscles. Joints provide smooth sliding and prevent bone destruction
Hip is a ball-and-socket joint where femur head fits into pelvis socket. Allows flexion/extension, abduction/adduction, and rotation movements. Comprised of bones, cartilage, muscles, ligaments, tendons, and synovial fluid
Joint pain is a symptom of underlying conditions affecting all ages. Pain can be sharp, dull, stabbing, burning or throbbing. Treatment depends on joint, severity and underlying cause
Bony enlargements of middle finger joints (PIP). Named after French pathologist Charles-Joseph Bouchard. Less common than Heberden's nodes (DIP)
Ball and socket joints are synovial joints allowing smooth movement between bones. One bone forms spherical ball, other bone contains rounded socket. Shoulder allows 8 movements, hip allows 6 movements. Most mobile joints in body, crucial for daily functions
The knee is the largest joint in the body and is easily injured. Three main bones: tibia, femur, and patella are connected. Articular cartilage covers bone ends, meniscus acts as shock absorber. Fabella, a sesamoid bone, is present in about 25% of population