Hindlimb Lameness- Stifle Joint Flashcards
What is the most common cause of Hindlimb lameness in dogs?
Cranial cruciate ligament disease
Are there any predispositions to Cranial cruciate ligament disease?
Can occur in any breed (but not really greyhounds lol)
But neutered females and obese dogs generally more at risk
What are the three types/ causes of cranial cruciate ligament disease?
Traumatic avulsion
Traumatic rupture
Degenerative Weakening (this is the major pathogenesis)
What disease can Cranial Cruciate Ligament Disease lead to?
Arthritis because the joint becomes unstable
What is the role of the Cranial Cruciate Ligament? (3)
Knee stability
Allows craniotibial translation (internal rotation)
Also stops the stifle joint falling backwards by attaching the front and back of the joint together
50% of dogs with Cranial Cruciate rupture also have damage to the …
Meniscus (medial)
What do the Meniscus have that allow load bearing/ shock absorbtion?
Collagen fibre arrangement converts compression into tension
Where do the Meniscus attach?
Medial- attaches to the Tibia
Lateral- attaches to the femur
How will an animal with Cranial Cruciate Ligament Disease present?
Lameness or non weight bearing with an unwillingness to flex the stifle
May sit with the leg extended or out to the side
What are we paying attention to when examining the stifle? (5)
Effusion- should be firm with clear ligament boundaries- if not then suggests fluid
Medial Buttress- feel medial side of femur- if one side is bigger it suggests fibrous tissue deposition
Patellar Tracking
Range of Motion
Pain
What two tests do we perform on the stifle to assess stability of the joint?
Cranial Draw (sliding of the patella)
Tibial Thrust (mimics walking)
What diagnostic tests can we undertake to diagnose Cranial Cruciate Ligament Disease?
Radiographs- multiple views!
MRI/ Contrast CT
Arthroscopy for surgical confirmation
How should we treat Cranial Cruciate Ligament Disease?
Conservative management (not preferred)- if no response after 8 weeks than surgical stabilisation
Dogs with meniscal injuries definitely need surgery!
What three types of surgery can we perform to correct Cranial Cruciate Ligament Disease?
Intra articular
Extra articular
Osteotomy
Briefly describe the process of Intra articular surgery to treat Cranial Cruciate Ligament Disease?
It’s a type of Graft through the bone tunnels- Take fascia from inside the joint, run it through the tunnels and fix it with screws