Cast index Formula: Inner diameter of cast on lateral view (m) / Inner diameter of cast on AP view (n) Cut-off: 0.7-0.8 Padding index Formula:…
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Radiology
Modified Ficat-Arlet Staging for AVN hip : Mnemonic
Ficat and Arlet first classified avascular necrosis of femoral head (AVN) in 1964 before the advent of MRI which was later modified and published in…
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Blumensaat line
Synonym: Intercondylar line, Blumensaat’s line Definition of Blumnesaat line It is the tangent drawn along the roof of intercondylar notch or fossa of the distal…
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Mirel’s Criteria or Score – Mnemonic
Mirel’s scoring system rates 4 criteria from 1 to 3 with maximum possible score of 12 to assess the risk of pathological fracture due to…
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Appearance and Fusion of Ossification Centers
Upper end of humerus Mnemonic: HGL – 1,3,5 a. Head – by 1 year b. Greater tuberosity – by 3 years c. Lesser tuberosity –…
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Mnemonic Approach to Elbow Xray – FOOL
Mnemonic: FOOLa. Fat padsb. Overt findings and outlinesc. Ossification centersd. Lines Fat pads The elbow joint has anterior and posterior fat pads which are extra-synovial…
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Lines and Angles in Orthopedics
Slipped Capital Femoral Epiphysis (SCFE) Southwick’s angle: Epiphyseal-shaft angle on lateral radiograph <30 degrees: mild 30-60 degrees: moderate >60 degrees: severe Klein’s line: Line drawn…
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Ottawa Foot, Ankle and Knee rules – Mnemonic
Ottawa Ankle and Foot Rules Mnemonic: 44-55-66-PM Patients need an X-ray only if: 4: Unable to do 4 steps immediately AND4: Unable to do 4…
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