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KNEE
KNEE - Positioning and structures shown
Question | Answer |
---|---|
AP KNEE | -PT supine w/no rotation of pelvis. -Rotate leg 3-5 degrees (intercondylar line is parallel to IR. -CR: Parallel to tibial plateau (ave. pt)Direct 1/2"/1.25cm DISTAL to apex of PATELLA. -Shown:Dist.femur/prox tib/fib. Fem jt sp open. SIMP of fib head. |
OBL KNEE (Med) | -Semisupine; body/leg rotated 45 degrees internally. -CR to midpoint of knee @ 1.5" DISTAL to apex of PATELLA. -Shown: Dist.fumer, prox tib/fib, patella SIMP medial femoral condyle. Lat fem/tib condyles in profile. No SIMP of tib/fib, 1/2 of patella free. |
OBL KNEE (Lat) | -Semisupine; body/leg rotated 45 degrees externally. -CR to midpoint of knee @ 1.5" DISTAL to apex of PATELLA. -Shown: Prox fib SIMP by tib, med condyles of femur/tib in profile, 1/2 of patella free. |
LAT KNEE | -Pt lat recumbent, injury down. Patella perp to IR. Flex knee 20-30 deg. -CR 5-7 deg cephalad, CR 1" DISTAL to miedial epicondyle. -Shown: fem, tib/fib, patella in profile; fem/pat jt open. Adducter tubercle if over(-tib/fib SIMP)/underrotation (+SIMP). |
AP Weight-Bearing Bilateral KNEE | Pt erect, wt distributed. -CR perp to IR, midpoint b/tw knee jts @ 1/2" below patellae. Shown: No rotation by symmetric appearance of condyles. ~1/2 fib SIMP by tib. |