Table 1 Pilot hole diameters for cortical and cancellous bone screws without cement and with bone cements
From: Biomechanical evaluation of bone screw fixation with a novel bone cement
Screw | Pilot hole diameter in PC sheet (mm) | Pilot hole diameter in block before/after cementing (mm) | Tapped |
|---|---|---|---|
Cortical | 3.0 (series 1, 3) 5.0 (series 2) | 3.0/– (series 1) 5.0/3.0 (series 2) 3.0/– (series 3) | – Yes – |
Cancellous | 6.5a (all series) | 3.0/– (series 1) 5.0/5.0 (series 2) 3.0/– (series 3) | – – – |