LIVRE JDG 2014

R. Badet, S. Piedade

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- polyethylene oversize and consequently, an

elevation of joint line;

- a persistent residual valgus deformity.

In such cases, we advise to use a resurfacing

UKR, because the thicknesses of the femoral

components vary, which help reconstruct the

lateral condyle and to restore to the adequate

level of the joint line (fig. 3C to 3E).

• After a fracture or a depression of the lateral

tibial plateau the origin of the valgus knee is

on the tibial side. The deformity and the wear

has been originated on the tibia and lateral

condyle which is “normal or with mild wear”

could be a reference to perform the tibial cut

with no risk of malpositioning or oversizing

of the tibial plateau component.

In theses cases there is a risk of hypercor

rection related to the thickness of the femoral

component and a resection prosthesis (“cut”)

UKR should be performed.

• In case of lateral femorotibial osteoarthritis

secondary to meniscetomy, the surgeon must

bear in mind that the origin of the valgus

deformity (femur or tibia) takes an important

role and should guide the surgical strategy.

Fig. 3A: R Knee - Intra articular pin: We use a reference pin which is

insert in the femoro tibial worn compartment to check to control and

reproduct the patient’s tibial slope during the procedure.

To restore to the adequate level of the joint line.

Fig. 3B: R Knee - In this case: cut at 13mm under the lateral condyle:

- 3mm femoral condyle

- 9mm Tibial polyéthylène

- 1mm security laxity to avoid over correction

Fig. 3C at 3E - In such cases, we advise to use a resurfacing UKR,

because the thicknesses of the femoral components vary, which help

reconstruct the lateral condyle and to restore to the adequate level of

the joint line.