Kapitel 62- Total knee Replacement

Question 1

What is the three most common causes of clinical failure following total knee replacement?

Answer 1

• Infection
• Collateral ligament disruption
• Aseptic loosening

Question 2

Name the implant used

Answer 2

Biomedtrix Canine Total Knee

Question 3

What are some contraindications for TKR?

Answer 3

• Concurrent neurological disease
• Infections, including concurrent systemic infection (pyo, UVI, dental disease) as well as local infection in the joint
• Other non-infectious systemic disease (cogulapathy, renal or liver failure, immunological or endocrine diseases)
• Neoplasia
• Loss of extensor mechanism

Question 4

Many dogs that undergoes TKR have already undergone a stifle surgery. What should this implants be removed prior to TKR?

Answer 4

Minimun 6 weeks prior to TKR surgery

Question 5

What are the advantages of a medial and lateral approach to the stifle respectivly?

Answer 5

Medial: better visibility and protection of the medial collateral ligament

Lateral: visibility of LDE

Question 6

At what angle to the mechanical axis is the tibial component implanted and what degree of the tibial slope does the implant have?

Answer 6

a. 90 degrees
b. 6 degrees

Question 7

What are the three main intraoperative complications?

Answer 7

• Damage to the collateral ligaments or patellar ligament
• Femoral or tibial fracture
• Hemorrhage

Question 8

List the most common post-operative complications

Answer 8

a. Implant wear
b. Aseptic loosening
c. Chronic joint instability
d. Limited ROM
e. Infection

Question 9

What is the most common implant wear in TKR?

Answer 9

Adhesive wear

(abrasive wear in THR)