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Table 2 Radiographic measurements in 50 normal femurs

From: Reconstruction of massive bone defects after femoral tumor resection using two new-designed 3D-printed intercalary prostheses: a clinical analytic study with the cooperative utilization of multiple technologies

Variables

Value

Mean distance of D1 (95%CI) (mm)

24.28 ± 5.51 (13.48–35.08)

Mean distance of D2 (95%CI) (mm)

64.85 ± 4.62 (55.79–73.91)

Maximum valid length of bilateral cortical bone in ROI-1 and ROI-2 (95%CI) (mm)

10.53 ± 2.82 (5.00–16.06)

Calcar femorale (mm)

38.41 ± 5.06 (28.49–48.33)

Thickness of calcar femorale (mm)

7.24 ± 1.20 (4.89–9.59)

Density of calcar femorale (HU)

809.90 ± 130.32 (554.47–1065.33)

  1. D1 the distance between the trochanteric fossa and the superior edge of the lesser trochanter, D2 the distance between the trochanteric fossa and the inferior edge of the lesser trochanter, ROI region of interest, HU Hounsfield Unit. The 95% confidence intervals were calculated by the K-S test