Approach to Knee Pain Flashcards
Giving out/buckling
Locking
Popping
Knee effusion
Pain at joint line
Ligamentous/instability
Meniscal
Ligamentous
Meniscal
Meniscal
McMurray exam and interpretation
Patient is supine…externally rotate tibia while applying valgus stress at knee…then internally rotate tibia while applying varus stress to test lateral
Lachman
Pull tibia forward with knee at 30 degfeees
ACL teaer
Sudden rotation or hyperextension
Severe knee pain, giving way
Pop
Effusion in 12 hours
PCL tear
Sudden anterior tibial force with knee in fexion causing posterior tibial movement
Normallyi in combo
MCL tear
Tibia moves laterally into abduction
Pain when valgus stress
LCL tear
Obbosite of MCL
Acute meniscal tear
Normaly from sudden roationally injury
Usually acute pain and pater stiffness and swelling…effusion after 24 hous
May have popping, catching, locking
Chronic meniscal tear
Frequently associated with OA in older individuals
OA knee
Mechanical sx
Buckling or giving way
More advanted will lose motion
IT band syndrome
Overuse injury of lateral knee in runners
Insidious onset of pain localized to where IT band courses of lateral femoral epicondyle
Sharp or burning and just prior to the foot strike at the knee extends
Can become constant and deep
Patellofemoral pain syndrome
Overuse more common in women
Anterior pain with prolonged sitting and with going up and down strairs
APply pressure on patella with knee in extnesion and move medially and laterally to test for pain
Prepatellar bursitis
Housemaids or carpet layers
From repetitive kneeling
Effusion over lower pole of patellar
Tender to palpation
Should be able to lie with knee in full extension
ALso caused by infection or gout
Baker cyst
Popliteal synovial cyst that is extension of semimembranous bursa
Posterior and inferior to knee
Ewing sarcoma
Moth eaten appearacne or onion peel
Biopsy
