Tendon to Bone Attachment using the PONTiS Anchor

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  1. The PONTiS anchor is shown here for attachment of the FDP to the distal phalanx. It is specifically designed for use in the hand and fingers. For this reason it is short with a blunt tip but therefore does need to be tapped (see related science and product description section of this web site). It can be used to treat a ‘jersey finger’ as in this video, attachment of the FDS to the middle phalanx, for repairs where there is a small segment of distal tendon remaining and for ligament repairs
  1. The FDP has been avulsed from its attachment.  One of the pre drills in the instrument set is used first – the largest if the bone is very hard and smallest for softer bone. The angle is drilled perpendicular to the ultimate line of pull of the tendon
  2. The tap in the instrument set is used to tap one cortex
  3. The PONTiS anchor is placed in the hole and inserted until it is beneath the cortical surface
  4. The plastic wrap on the shaft of the inserter is then removed. This releases the 3 0 multifilament stainless steel suture which is housed in slits along the shaft. The anchor inserter is removed leaving the anchor and sutures in place
  5. A standard cross lock stitch using a PONTiS multifilament suture is placed in the proximal tendon in the same fashion as shown in previous videos. Note that the sutures may be brought out the deep or dorsal surface of the tendon a few mm from the tendon end
  6. The sutures are brought through the crimp from each side, traction is applied to approximate the tendon and bone and the crimp is compressed with the crimp tool. The PONTiS multi filament stainless steel sutures are then cut as short as possible on the crimp. Note that this leaves a few mm of tendon to suture to any remaining tendon remnant or other soft tissue on the bone and to cover the crimp. A few additional sutures can be placed to repair the distal tendon leaving a tidy and strong attachment

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