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14 Cards in this Set
- Front
- Back
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How to evaluate elbow xray |
Fat pads Anterior humeral line intersects medial 1/3 capitellum Radiographic teardrop on lateral view Radial shaft intersects medial capitellum CRITOL (1-3-5-7-9-11) |
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Approach to evaluating carpal bones |
Alignment - 3 carpal arches - 4 c's of lunate articulations on lateral - scapholunate angle (30-60) - signs of scapholunate disruption (signet ring and terry thomas) Bones Cartilage - Intercarpal spaces Soft tissue - pronator quadratus stripe displacement |
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Four stages of perilunate injury |
(1) scapholunate dissociation/fracture (2) perilunate dissociation (3) peirlunate with triquetral injury (4) Lunate dislocation |
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Shoulder dislocation not to reduce in ER on your own |
Humeral fracture with humeral head dislocation |
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Interpreting mortise views |
Uniform mortise joint space Tibifibular joint space only slightly wider than mortise joint space (<5.5mm) Tibiofibular overlap >1 mm |
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Evaluating syndesmosis on AP views of the ankle
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Fibular clear space less than 5mm Tubular fibular overlap > 10 mm |
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Evaluating for Tibial Plateau Fractures |
Increased trabecular density on lateral tibial plateau
Displacement of the tibial plateau relative to the femoral condlye
Effusion
Lipohemarthrosis |
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Radiographic signs of a non-displaced femoral neck fracture |
(1) Discontinuity/angulation of cortical bone (2) Disruption of the normal cortical bone (3) Altered bone density along the fracture line (4) Foreshortening of the femoral neck due to impaction (5) Abnormal angle between femoral neck and head |
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Classification of proximal femoral fractures |
(1) Intracapsular - Subcapital - Trasncervical - Basicervical
(2) Extracpsular -Intertrochanteric - Subtrochanteric |
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Radiographic teardrop on pelvic films |
Illioischial line Acetabular articular surface Radiographic U = inferior lip of the anterior articular surface of the acetabulum |
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Anterior column of acetabulum |
Anterior portion of acetabulum to the superior pubic ramus
Illipobuc line radiographically |
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Posterior column of acetabulum |
Posterior portion of acetabulum to ischial ramus
Illioischial line |
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Knee Xray alignment |
Line drawn at lateral margin of femur should have no more than 5mm of tibia outside of it
Length from tibial tubercle to inferior pole of patella should approximate the length of the patella |
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Midfoot alignment |
On an AP view the medial margin of the 2nd MT is in line with the medial margin of the intermediate cuneiform
On an oblique view the medial margin of the 3rd MT is in line with the medial margin of the later cuneiform |
