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What is more frequent?
Asymmetrical physeal damage
What are the significant prognostic indicators for functional outcome?
Severity of pre-existing elbow joint osteoarthritis and more severe functional impairments
What is the alternative to avoid instability and recurvatum of ostectomized ulna ?
ostectomy of distal part of ulnar diaphysis or removal of distal physis itself
What is the risk of performing any correction in skeletally immature dog ? What is the alternative and the risk of this alternative?
- angulation return and additional surgery needed
- Alternative: delay surgery until animal is mature and then do a definitive correction with no risk of reangulation
- BUT: risk of waiting => angulation will negatively affect the distribution of biomechanical loads placed on the joints => Creating stress on the joint => irregular wear of articular surfaces => early osteoarthritis + potential remodeling of subchondral bone
In case of biapical defomity what does typically the ulna require?
releasing osteotomy at level of each radial osteotomy
Is an external coaptation recommended post internal fixation and if yes what and how long?
eventuel a rigid caudal splint or bivalved cast for 4 to 6 weeks
What is the currently used fixation technique for controlled dynamic ulnar ostectomy?
Circular external skeletal fixators
Why is an ostectomy prefered by juvenile patients and an osteotomy prefered by adult patients?
Ostectomy:
Larger gap help prevent ulna from completing osseous union before cessation of radial growth
In skeletally mature dogs => osteotomy performed because premature union is much less of a concern
What are the treatment possibilities for congenital radial head luxation (4)?
From what can arise development antebrachial angulation?
What could be the consequence if there is an instability at ostectomy site?
formation of exuberant callus
- potential to form a bridging synostosis with radius
- can be source of irritation because thin soft tissue coverage overlying caudal aspect of ulna
Which plate can be used in a distal metaphysis Fx of radius? What is the approach?
T-plate if sufficient bone available for placement of the 2 or 3 most distal screws
combination of medial and dorsal approaches of the distal radius
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