This is a placeholder text
Group text
by Badpuppy on 23 January 2010 - 16:01
I agree 101% with Jenni78. (unilateral) HD & ED is NOT purely genetic.
I also agree that S*** Happens.....
I also agree that S*** Happens.....
by Jenni78 on 23 January 2010 - 18:01
Wildmoor, to clarify, my allegations are based on a radial or ulnar trauma/bruise of distal physis causing premature closure of one plate, which in turn causes the elbow to be incongruous. FCP is more widely suspected of having a genetic link. Here's an excerpt that says it a bit better:
Elbow incongruity – This refers to changes in the elbow joint configuration caused by premature closure of ulnar and/or radial growth plates in pups. Growth plates, located at the ends of the long bones, allow for growth of the bone in length as puppies mature. Damage to these growth areas causes shortening of the limbs and places abnormal forces on the joint. This condition can occur in several locations in the front limb:
Premature closure of the distal ulnar physis
Premature closure of the proximal radial physis.
Premature closure of the distal radial physis.
Diagnosis is based on the combination of physical examination and radiographs. The orientation of the abnormal limb often indicates the region where the growth plate abnormality is located. Various surgical repairs are described but most involve an osteotomy (cutting the bone and removing a small section of it) of the bone in which the growth plate has prematurely closed. This allows the normal bone to continue to grow in a normal manner. These problems are very often trauma related.
Elbow incongruity – This refers to changes in the elbow joint configuration caused by premature closure of ulnar and/or radial growth plates in pups. Growth plates, located at the ends of the long bones, allow for growth of the bone in length as puppies mature. Damage to these growth areas causes shortening of the limbs and places abnormal forces on the joint. This condition can occur in several locations in the front limb:
Premature closure of the distal ulnar physis
Premature closure of the proximal radial physis.
Premature closure of the distal radial physis.
Diagnosis is based on the combination of physical examination and radiographs. The orientation of the abnormal limb often indicates the region where the growth plate abnormality is located. Various surgical repairs are described but most involve an osteotomy (cutting the bone and removing a small section of it) of the bone in which the growth plate has prematurely closed. This allows the normal bone to continue to grow in a normal manner. These problems are very often trauma related.
by Wildmoor on 23 January 2010 - 20:01
Sorry Jenni but you dont state your source, there are different forms of EI and yes trauma can cause problems but the abnormality will already be presnt and the trauma causes damage to what is already there.
"Elbow incongruity (EI, INC): The subchondral bone of the trochlear notch of the ulna
and of the radial head are not parallel to the opposing humeral subchondral bone. There
are different forms of EI:
The radius longer than the ulna with a narrowing of the joint space between the tip of the
anconeal process and the humeral condyle, a distally gradual widening of the joint space
between the ulnar semilunear notch and the humeral condyle and the radial head
proximal of the coronoid process of the ulna
The longer ulna with a wider joint space between the proximal radius and the humeral
condyle and the step between the more proximally located distal edge of the ulnar
trochlear notch (i.e., the lateral coronoid process) and the radial head (and displacement
of the distal humerus cranially). This can also be considered as an underdeveloped or too
small trochlear notch.
The alignment between the subchondral bone of the trochlear notch and the radial head is
more elliptical than the circular contour of the humeral condyles described by Wind (1986)
Developmental elbow luxation with lateral displacement of the (often hypoplastic) radial
head with a comparative overgrowth of the radius (as seen in chondro-dysplasia in nonchondrodystrophic
breeds)"
Taken from
Elbow Dysplasia; definitions and clinical diagnoses
23rd annual meeting IEWG, Dublin, August 20th 2008, p 9
"Elbow incongruity (EI, INC): The subchondral bone of the trochlear notch of the ulna
and of the radial head are not parallel to the opposing humeral subchondral bone. There
are different forms of EI:
The radius longer than the ulna with a narrowing of the joint space between the tip of the
anconeal process and the humeral condyle, a distally gradual widening of the joint space
between the ulnar semilunear notch and the humeral condyle and the radial head
proximal of the coronoid process of the ulna
The longer ulna with a wider joint space between the proximal radius and the humeral
condyle and the step between the more proximally located distal edge of the ulnar
trochlear notch (i.e., the lateral coronoid process) and the radial head (and displacement
of the distal humerus cranially). This can also be considered as an underdeveloped or too
small trochlear notch.
The alignment between the subchondral bone of the trochlear notch and the radial head is
more elliptical than the circular contour of the humeral condyles described by Wind (1986)
Developmental elbow luxation with lateral displacement of the (often hypoplastic) radial
head with a comparative overgrowth of the radius (as seen in chondro-dysplasia in nonchondrodystrophic
breeds)"
Taken from
Elbow Dysplasia; definitions and clinical diagnoses
23rd annual meeting IEWG, Dublin, August 20th 2008, p 9
by Jenni78 on 23 January 2010 - 20:01
Nevermind, Wildmoor. You missed my point entirely.
Contact information Disclaimer Privacy Statement Copyright Information Terms of Service Cookie policy ↑ Back to top
