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Comparison of fixed-flexion positioning with fluoroscopic semi-flexed positioning for quantifying radiographic joint-space width in the knee: test-retest reproducibility

Fixed-flexion PositioningPhysical TherapyBiomechanicsOsteoarthritisRadiographic Joint-space WidthMusculoskeletal FunctionTest-retest ReproducibilityJoint ReplacementArthroscopic TechniqueHuman MovementMedicineOrthopaedic SurgeryRadiologyHealth Sciences