Eclipse™ Soft Tissue Anchor – General Technique Guide Eclipse™ Soft Tissue Anchor – General Technique Gu | Page 4

SIZING GUIDE
BONE TUNNEL & IMPLANT SIZING
The Eclipse Soft Tissue Anchor is available in a range of sizes from 4 to 9 mm in diameter and 10 to 20 mm in length.
Selecting the appropriate Implant size should take into account the tendon size and bone quality.
SELECTING BONE TUNNEL DIAMETER
Measure the tendon diameter using the MedShape Soft Tissue Sizer. The bone tunnel diameter should measure 1 mm
larger than the tendon diameter. If the tendon measures in a half-mm increment (e.g. 5.5 mm), size the tunnel 1.5 mm
larger than the tendon diameter.
SELECTING IMPLANT DIAMETER
In good, healthy bone where there is a sufficient cortical layer, the Implant should measure 1 mm less than the tunnel
diameter (e.g. for a 7 mm tunnel, select a 6 mm Implant).
In poor quality bone, the Implant diameter should equal the tunnel diameter (e.g. for a 7 mm tunnel, select a 7 mm
Implant).
SELECTING IMPLANT LENGTH
When anatomy permits, always select the Implant with the greatest length (e.g. 4x17 mm or 5x20 mm). The 10 and 12
mm length Implants should ONLY be used when there is not sufficient bone anatomy to accommodate the 17 and 20 mm
lengths, respectively.
SELECTING BONE TUNNEL LENGTH
When drilling a blind bone tunnel, the tunnel should be drilled slightly deeper than the length of the Implant. For a 10 mm
Implant, drill a 15 mm tunnel. For a 12 mm Implant, drill a 15 mm tunnel. For a 17 mm Implant, drill a 20 mm tunnel. For
a 20 mm Implant, drill a 25 mm tunnel.