DB 10

Instrumentation

A simple and effective instrumentation based on the principle of the clip-on
applications.

• One rasp handle to be connected with ten rasp sizes.
• Rasps can be left in femur and fitted with trial necks.
• Suitable for impaction technique.

Design Rationale

The design of the DB10 stem optimizes primary stability :

Intimate trabeculair bone contact

Optimized load transfer to the dynamic bone through to the postero-lateral angle situated in the axis of the neck

Primary stability provided by metaphyseal anchoring : the narrow tip of the stem is designed to guide the implant

The large range of sizes available (sizes 9 to 18) provides efficient solutions for most primary indications.

DB10 is a straight collared stem able to provide excellent primary stability and to prevent migration.

Full hydroxyapatite coating on macro-structured titanium, and grooves on A/P sides assure bone in-growth surface for secondary stability.

Narrowed neck for a larger range of motion.

137,5° CCD angle combined with a lateralised positioning of neck to reduce lever arm and efficiently restores femoral offset.

Templating

The advantage of this prosthesis is that it will tolerate a slight varus or valgus positioning.

The stem is fully coated with Calcium Hydroxyapatite, resulting in a complete fixation to bone ingrowth.

The collared design, in combination with a double tapered shape makes it superfluous - should there be solid cancellous bone present – to seek cortex contact.

It also means that the entrance into the shaft must indeed be sought as far laterally as possible, yet, it will not lead to additional ‘breaking’.

It is not necessary to prepare shaft with a gouge curette.

The prosthesis finds its own path

It is essential that the last rasp needs to be introduced not further then three millimeters above the cortex, in order to achieve pressfit for the implant.

Templating should be carefully conducted in order to restore a good internal femoral obturator arch.