5. Personal and Past history
• Underlying disease : Hypertension, peptic
ulcer
• Current medication : Amlodipine (5) 1x1 po
pc, Omeprazole (20) 1x1 po pc
• No food and drug allergy
• No history of trauma
• History of Left TKA since 2014
• No smoking and alcohol drinking
6. Physical examination
• GA : An old Thai woman, obese, well co-operative
• V/S : T 36.7 C, BP 130/80 mmHg, PR 80 bpm, RR
20/min
• BW : 65 kg, Ht : 150 cm, BMI : 28.9 kg/m2
• HEENT : not pale, anicteric sclerae
• Heart : normal S1 S2, no murmur
• Lung : clear and equal breath sound
• Abdomen : obese shape, soft, not tender
• Neurological : alert, good orientation, motor
power grade V all extremities, no paresthesia
7. Knee examination
• Inspection : Genu varus, quadriceps atrophy both sides
(Rt>Lt), surgical scar at left knee, no sign of inflammation
(no redness, no swelling)
• Palpation : warm, no significant point of tenderness, right
patella ballottement positive, crepitus positive right knee
• Movement : normal range of knee flexion and extension
both active and passive, painful
• Measurement : not exam
• Special test :
– Lachmann test : negative
– Anterior & posterior drawer sign : negative
– McMurrey’s test : negative
– Patellar grind test : negative
– Apprehensive test : negative
9. Problem lists
• Progressive right knee pain for 1 year
• Genu varus with crepitus right knee with
quadriceps atrophy
• Overweight (BMI = 28.9 kg/m2)
• U/D : HT, PU
• History of Left OA knee S/P Left TKA (2014)
28. Criteria for diagnosis
Traditional format
• Knee pain
• Osteophyte in X-ray
• 1/3 :
– Age > 50 yrs
– Morning stiffness < 30
min
– Crepitus
Classification tree
• Knee pain + Osteophyte
in X-ray
or
• Knee pain in < 40 yrs +
Morning stiffness < 30
min + Crepitus