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Table 1 Mean (±SD) values for regional (3 periprosthetic acetabular zones) and overall mean radiographic bone GV, and prosthetic head acetabular coverage immediately and 4 months after uncemented and cemented THA (n = 7, each)

From: Radiographic evaluation of early periprosthetic acetabular bone contrast and prosthetic head acetabular coverage after uncemented and cemented total hip prosthesis in dogs

  Uncemented THA Cemented THA
Parameter Immediately
postoperative
4 months
postoperative
P-value Immediately
postoperative
4 months
postoperative
P-value
Zone 1 (GV) 166.3 ± 26.93 176.2 ± 26.59 0.083 166.4 ± 24.49 173.9 ± 20.74 0.243
Zone 2 (GV) 166.7 ± 31.45 181.5 ± 29.69* 0.021 171.5 ± 25.89 178.3 ± 19.29 0.292
Zone 3 (GV) 167.4 ± 26.42 183.4 ± 26.56* 0.003 164.4 ± 21.60 168.5 ± 20.04 0.449
Mean overall bone GV 166.8 ± 28.10 180.4 ± 27.45* 0.018 167.4 ± 23.82 173.6 ± 19.82 0.303
Prosthetic head GV (control) 217.3 ± 36.27 220.1 ± 39.76 0.797 220.3 ± 30.81 227.4 ± 10.09 0.279
Prosthetic head Norberg (PHN) angle (°) 112.8 ± 9.36 112.5 ± 7.67 0.851 106.9 ± 12.03 104.2 ± 14.06 0.179
  1. GV gray scale value
  2. THA total hip arthroplasty
  3. *P < .05 compared with immediate postoperative value