Table 6

Subgroup analysis
Femoral defects by Paprosky p-values
I IIA IIB IIC III
Bony union 1 0.11 0.17 0.07 <0.05
Sum of radiolucencies 1 0.11 0.17 0.07 <0.05
Sum of stem migration 0.07 0.10 0.13 <0.05 0.07
“Stress-Shielding” 0.38 0.70 0.94 <0.05 <0.05
HHS difference [pre- vs. post-OP] 0.34 0.93 0.32 <0.05 <0.05
Stem - Diameter 13 / 14 mm 15 / 16 mm 17 / 18 mm 19 / 20 mm > 21 mm
Bony union 0.16 0.12 0.08 0.08 0.08
Sum of radiolucencies 0.16 0.12 0.08 0.08 0.08
Sum of stem migration 0.16 0.47 0.11 0.08 0.08
“Stress-Shielding” 0.39 0.30 <0.05 <0.05 0.08
HHS differece [pre- vs. post-OP] 0.34 0.93 <0.05 <0.05 <0.05

Detailed evaluation of clinical and radiographic results with consideration given to the femoral defect situation and implant diameter: levels of significance in difference (p-values) between control and study group.

Wimmer et al.

Wimmer et al. BMC Musculoskeletal Disorders 2013 14:19   doi:10.1186/1471-2474-14-19

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