. 2016 Feb 11;17(1):1–6. doi: 10.1007/s10195-016-0391-1

Table 1.

Summary of studies reporting femoral head size

References	Number of hip implants	Implant description	Results
Lavernia et al. [3]	Five models (via finite elemental analysis)	28-, 32-, and 40-mm heads	Trunnion stress increased with head size: 10.1, 12.1, 16.6 MPa
Bolland et al. [10]	199	38–58-mm heads	17 hips revised, 14 hips awaiting revision (all heads >40 mm)
Dyrkacz et al. [11]	74	28-mm head (59 hips)	Larger diameter group––greater correlation with head–neck corrosion (0.975 vs 0.502) and head–neck fretting (1.0 vs 0.366)
Dyrkacz et al. [11]	74	36-mm head (15 hips)
Matthies et al. [12]	110	>36-mm heads	Median volume of material loss at trunnion (0.29 mm³) was significantly less compared to female taper, femoral head, and acetabular bearing surface (P < 0.001). Correlation observed between corrosion score and volume of material loss (ρ = 0.72, (95 % CI 0.44–0.87, P < 0.001)