Parametric finite element model of medial patellofemoral ligament reconstruction model development and clinical validation

Journal of Experimental Orthopaedics

Table 3 Distance between the patellar and femoral insertion points for the MPFL reconstruction techniques analyzed

Flexion Angle (°)	Anatomic MPFL Reconstruction		Non-anatomic MPFL Reconstruction with Physiometric Behavior		Non-Anatomic MPFL Reconstruction but Non-Physiometric
Flexion Angle (°)	Length (mm)	SD (mm)	Length (mm)	SD (mm)	Length (mm)	SD (mm)
0	60.2^b	± 6.1	51.6^b	± 4.6	37.5^b	± 7.8
30	57.9^b	± 6.8	50.8^b	± 5.4	36.5^b	± 9.2
40	57.7	± 6.0	48.8	± 5.0	36.2^c	± 8.1
60	57.3^a	± 6.4	44.9^a	± 5.2	35.7^c	± 10.1
90	55.6^a	± 5.7	38.3^a	± 4.9	35.6^c	± 7.9
120	50.7^a	± 4.9	33.7^a	± 4.8	35.4^c	± 5.6

MPFL with non-anatomical femoral attachment point with satisfactory results is always physiometric. MPFL with non-anatomical femoral attachment point with non-satisfactory results is always non-physiometric
^aNo tension
^bTension type 1
^cTension type 2