Table 8.

Factors influence screw purchase in DDD

Screw thread design [9, 18, 19, 38]

Screw shape [23]

Screw surface roughness [9, 14, 18, 21, 38]

Screw length [9, 18, 38]

Screw cross-section size [9, 18, 38]

Osteoporosis [40]

Use of bone-implant interface enhancers, e.g., HA [4] or bone cement