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Fig. 5 | BMC Musculoskeletal Disorders

Fig. 5

From: The effect of the sagittal plane osteotomy inclination on the posterior tibial slope in medial open wedge HTO: experimental study with a square column model

Fig. 5

Mathematic modeling of SPOI 0° (anterior-inclined 10° osteotomy). a Before correction; b After correction; P1: anterior end point; P2: posterior end point; H1: anterior end point of the lateral hinge; H2: posterior end point of the lateral hinge; r1: distance from H1 to P1; r2: distance from H2 to P2; θ1: angle of P1 with the OP line; θ2: angle of P2 with the OP line; ϰ1=r1xsin(θ1); ϰ2=r2xsin(θ2); ϰ1′=r1xsin(θ1 + θ); ϰ2′=r2xsin(θ2 + θ)

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