Surgical implant

The surgical implant according to any of the preceding claims, wherein the density of whiskers over a surface of the core is in the range:

• 25 whiskers/cm2 to 1000 whiskers/cm2 and preferably 120 whiskers/cm2 to 200 whiskers/cm2.

The surgical implant according to any of the preceding claims, wherein the whiskers have a length in the range:

• 0.7 mm to 12.0 mm and preferably 2.5 mm to 6.0 mm, as measured normal to the surface of the core.

The surgical implant according to any of the preceding claims, wherein the angle between the whiskers and the longitudinal axis is in the range:

• 5° to 89° and preferably 20° to 60°.

The surgical implant according to any of the preceding claims, wherein some or all of the whiskers have a thickness in the range:

• 100 μm to 1000 μm and preferably 200 μm to 500 μm.

The surgical implant according to any of the preceding claims, wherein some or all of the whiskers are tapered in thickness along all or part of their length.

The surgical implant according to any of the preceding claims, wherein the whiskers are tapered in thickness along the length of the implant, such that the whiskers at the distal end are progressively thinner than the whiskers at the proximal end.

The surgical implant according to any of the preceding claims, wherein the core is tapered, narrowing towards the distal end.

The surgical implant according to any of the preceding claims, wherein some or all of the whiskers have a forked end.

The surgical implant according to any of the preceding claims, wherein the core has a thickness in the range:

• 4% to 95% and preferably 36% to 75% of a total thickness of the implant, as measured normal to the longitudinal axis.

The surgical implant according to any of the preceding claims, further comprising a lattice structure surrounding the core.

The surgical implant according to any of the preceding claims, wherein the surgical implant is additively manufactured.

The surgical implant according to any of the preceding claims, wherein the surgical implant comprises one or more of the following materials:

• titanium and alloys thereof, stainless steel, tantalum, and cobalt-chromium alloys.

The surgical implant according to any of the preceding claims, wherein the implant comprises a surgical anchor or a surgical peg, or comprises part of a larger surgical implant.

A surgical implant surface comprising:

• a body having a plurality of discrete whiskers extending from the surface of the body,
• wherein an angle between each of one or more of the whiskers and a respective axis normal to the surface of the body originating from a corresponding joint between each respective whisker and the body is in the range:
• 5° to 89° and preferably 20° to 60°.