More Stiffness

Musculoskeletal System

{"ops":[{"insert":"Diagnosis and reasoning"},{"insert":"\n","attributes":{"header":1}},{"insert":"Knee pain is an extremely common presenting problem, particularly in the elderly; while the range of causative etiologies is extremely wide, a systematic clinical evaluation is often helpful in vastly narrowing down the possibilities.\n\nIn this lady, note the prolonged history of bilateral knee pain; chronic knee pain in patients of this age suggests at either an inflammatory cause such as late-onset rheumatoid arthritis (RA) or crystal-induced arthropathies, or a degenerative cause such as osteoarthritis (OA).\n \nThe presence of pain and morning stiffness that are relieved by resting rather than with gentle activity makes a non inflammatory arthritis (i.e. OA) more clinically likely.\n \nExamination in turn reveals a constellation of distinct "}]}

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