skinnydipper
Well-Known Member
Copied from a post by Celia Cohen on Facebook.
"If you have a dog you may find this interesting. I was asked to write about the facts/ biomechanics of high neck slip/chain correction. I hope it educates a few people.
The use of high neck slip lead correction (upwards motion).
High neck position- the rope sits adjacent to the base of the skull with the underside in line with the hyoid apparatus (suspensory mechanism for the tongue and larynx). Next in line is the atlas (first cervical vertebrae) at the top end this forms a joint with the base of the skull and the bottom with the second vertebrae which has the dens (peg) which sits nestled in the arch of the atlas along with the spinal cord.
The mechanics; These two upper joints of the dogs neck are high motion joints. The first allowing the up /down nodding movement and the second the rotation. These joints are unique in the spine in there anatomy, articulation and shape. When pressure is exerted on the underside of the neck at this point the hyoid is compressed and the dogs vertebrae are put into flexion, skull down position.
High velocity force with a slip rope or chain is an effective way of snapping the dens(peg) of C2, aka hanging.
However sympathetically performed it should not be intentionally used due to safety and discomfort to the recipient.
Regards,
Celia Cohen, MCSP, MSc vet Phys
Chartered Veterinary Physiotherapist ACPAT(A)"
"If you have a dog you may find this interesting. I was asked to write about the facts/ biomechanics of high neck slip/chain correction. I hope it educates a few people.
The use of high neck slip lead correction (upwards motion).
High neck position- the rope sits adjacent to the base of the skull with the underside in line with the hyoid apparatus (suspensory mechanism for the tongue and larynx). Next in line is the atlas (first cervical vertebrae) at the top end this forms a joint with the base of the skull and the bottom with the second vertebrae which has the dens (peg) which sits nestled in the arch of the atlas along with the spinal cord.
The mechanics; These two upper joints of the dogs neck are high motion joints. The first allowing the up /down nodding movement and the second the rotation. These joints are unique in the spine in there anatomy, articulation and shape. When pressure is exerted on the underside of the neck at this point the hyoid is compressed and the dogs vertebrae are put into flexion, skull down position.
High velocity force with a slip rope or chain is an effective way of snapping the dens(peg) of C2, aka hanging.
However sympathetically performed it should not be intentionally used due to safety and discomfort to the recipient.
Regards,
Celia Cohen, MCSP, MSc vet Phys
Chartered Veterinary Physiotherapist ACPAT(A)"