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Table 1 Bone Matching at Osteotomy Site

From: Three-dimensional femur morphology analysis for the optimal location of subtrochanteric osteotomy with an implanted Wagner cone stem in total hip arthroplasty for Crowe type IV developmental dysplasia of the hip

Level (cm)

Area of cortical bone (mm2)

Contact Area (mm2)

Coincidence rate

Length of Osteotomy

Length of Osteotomy

2.5 cm

3 cm

3.5 cm

4 cm

4.5 cm

2.5 cm

3 cm

3.5 cm

4 cm

4.5 cm

0

325 ± 57

202 ± 76

198 ± 77

195 ± 76

192 ± 74

190 ± 73

63%

61%

61%

60%

59%

0.5

316 ± 56

230 ± 69

226 ± 68

222 ± 67

218 ± 66

215 ± 65

72%

71%

69%

68%

67%

1

318 ± 62

253 ± 64

249 ± 62

245 ± 60

241 ± 60

239 ± 58

80%

78%

77%

75%

74%

1.5

315 ± 66

262 ± 60

258 ± 58

253 ± 58

250 ± 57

247 ± 57

82%

81%

79%

77%

77%

2

319 ± 60

270 ± 54

265 ± 53

263 ± 52

258 ± 53

254 ± 53

85%

83%

82%

81%

80%

2.5

317 ± 56

273 ± 51

271 ± 50

266 ± 50

263 ± 50

260 ± 52

86%

84%

84%

82%

81%

3

316 ± 56

280 ± 53

272 ± 51

268 ± 51

266 ± 54

254 ± 55

87%

85%

84%

83%

80%

3.5

316 ± 58

280 ± 54

275 ± 52

272 ± 54

260 ± 54

250 ± 56

88%

86%

85%

82%

79%

4

317 ± 55

282 ± 53

278 ± 54

269 ± 55

258 ± 55

NA

88%

86%

85%

81%

NA

4.5

318 ± 54

284 ± 55

274 ± 54

263 ± 55

NA

NA

88%

86%

83%

NA

NA

5

319 ± 57

279 ± 55

266 ± 55

NA

NA

NA

88%

84%

NA

NA

NA

5.5

322 ± 58

274 ± 55

NA

NA

NA

NA

86%

NA

NA

NA

NA

6

319 ± 58

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

6.5

320 ± 57

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

7

321 ± 59

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

7.5

318 ± 59

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

8

317 ± 59

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

  1. NA—not available