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Table 6 The Percentage of extramedullary volume to the stem volume for each trisection in the axial direction of the stem

From: Effect of trochanter displacement on impingement and bone contact in total hip arthroplasty performed after curved intertrochanteric varus osteotomy for osteonecrosis of the femoral head: a simulation study

 

CVO (29 hips)

Control (30 hips)

p value a

Zones 1, 7

25.5 [7.7–38.4]

0.0 [0.0–0.2]

 < 0.001

Zones 2, 6

0.3 [0.1–0.9]

0.5 [0.1–0.9]

0.636

Zones 3, 5

0.7 [0.3–1.2]

0.8 [0.4–1.4]

0.301

Zones 1–3, 5–7

11.2 [3.4–17.8]

0.5 [0.2–0.9]

 < 0.001

  1. Values are presented as mean (standard deviation)
  2. Zones 1, 7 show the proximal third; zones 2, 6 show the central third; and zones 3, 5 show the distal third
  3. CVO Curved intertrochanteric varus osteotomy
  4. aMann–Whitney U test
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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