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Table 6 Subgroup analysis

From: Impaction grafting in the femur in cementless modular revision total hip arthroplasty: a descriptive outcome analysis of 243 cases with the MRP-TITAN revision implant

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

  1. 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.
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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