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Table 3 Comparison of preoperative and the last follow-up results

From: Mid-term results of revision surgery using double-trabecular metal cups alone or combined with impaction bone grafting for complex acetabular defects

Variables Total patients Double-TM cups alone Technique combined with IBG p value
mHHS 29.6 ± 5.09 28.5 ± 4.14 31.0 ± 5.90 0.128
UCLA 4.7 ± 0.46 4.8 ± 0.42 4.6 ± 0.52 0.423
SF-36
 Physical functioning 6.1 ± 1.86 5.7 ± 1.70 6.5 ± 2.07 0.341
 Role-physical 19.7 ± 2.87 20.4 ± 2.99 18.8 ± 2.61 0.203
 Bodily pain 35.4 ± 3.26 36.3 ± 3.74 34.3 ± 2.25 0.179
 General health 7.8 ± 2.62 7.7 ± 3.09 8.0 ± 2.07 0.821
 Vitality 11.6 ± 2.75 11.5 ± 3.03 11.8 ± 2.55 0.786
 Social functioning 8.9 ± 2.90 9.5 ± 3.60 8.3 ± 1.67 0.141
 Role-emotional 10.9 ± 3.93 11.5 ± 2.92 10.3 ± 5.06 0.263
 Mental health 6.2 ± 2.96 6.7 ± 3.68 5.6 ± 1.77 0.788
LLD (mm) 18.3 ± 2.59 18.4 ± 2.99 18.3 ± 2.19 0.928
CORa 1.08 ± 0.12 1.07 ± 0.13 1.08 ± 0.11 0.964
CORb 1.06 ± 0.11 1.05 ± 0.11 1.06 ± 0.12 0.858
  1. Improvement between the last follow-up and pre-operation
  2. aVertical position of COR/contralateral position of COR (the last follow-up)
  3. bHorizontal position of COR/contralateral position of COR (the last follow-up)
  4. TM trabecular metal, IBG impacting bone grafting, mHHS modified Harris Hip Score, UCLA University of California, Los Angeles activity score, SF-36 36-item Short Form Health Survey, LLD limb-length discrepancy, COR center of rotation