The information contained in this document is intended for healthcare professionals only.

Transcription

1 The information contained in this document is intended for healthcare professionals only.

2 STANDING THE TEST OF TIME

3 The Exeter V40 stem The V40 trunnion has been incorporated onto the Exeter stem as part of the standardization of the Stryker Howmedica Osteonics hip range to a single trunnion design. No aspect of the stem design that resides within the cement mantle has been modified. The V40 has been included with minimal change to the neck of the prosthesis as illustrated in Figure 1. The Exeter V40 stem introducer To assist ease of implantation of the Exeter V40 implant, a V40 stem introducer has been developed. It provides for a positive engagement between the introducer and a dimple in the lateral shoulder of the prosthesis, see Figure 2 inset. The dimple has been placed in a region of low tensile stress. The technical requirement for the stem introducer was not to change the method of releasing the stem. This has been achieved through an evolution of the original stem introducer design, retaining the connection with the trunnion protector so that the Exeter V40 stem can still be implanted with the original stem introducer. A smooth trigger action mechanism, carefully positioned in relation to an ergonomically designed handle, ensures complete control of the V40 stem introducer while it is being released from the stem, without disturbing the cement mantle. Figure 1 The V40 trunnion superimposed on the previous Exeter trunnion, (indicated in white) showing no change to the stem design residing within the cement mantle. The Exeter V40 stem increased range of motion The Exeter V40 stem, with a smaller diameter neck at the base of the trunnion, will afford an increase in range of motion. This increase in ROM will depend on the chosen diameter of the femoral head, as illustrated in Table 1. Nominal Range Of Motion (ROM) Diameter of Head Previous Exeter Stem Exeter V40 Stem Increase in ROM 22.2mm mm mm mm mm Table 1 Figure 2 The connection of the V40 stem introducer with the Exeter V40 stem.

4 The Exeter V40 system provides: Increased implant size range Increased head offset options Increased range of motion State-of-the-art stem introducer Easy to use modular rasps No change to the long established Exeter design principles The Exeter V40 Modular Rasps: From pre-operative templating to final implantation, the goal of the Exeter Instrumentation is to provide an easy-to-use instrument system that improves operating room efficiency. For accurate trialing, modular Exeter V40 Trial Necks feature a V40 trunnion 1 to replicate the Exeter V40 implant. The modular neck trials will allow the operating surgeon to trial different stem offsets without having to remove the rasp from the femoral canal. In addition, it will also enable the operating surgeon to work on the acetabulum while leaving the rasp in place. The modular rasp system is designed to achieve a high level of simplicity and precision while allowing greater intra-operative flexibility. See Figure 3 & 4. Figure 3 Exeter Modular Rasp. The Exeter V40 enhanced range of options Three new stem sizes have been added to the Exeter V40 range, bringing the number of stem sizes up to twenty-four, spread over a range of six offsets. The new sizes are: 44mm offset No.0 50mm offset No.1 50mm offset No.2 The new stems have been subject to rigorous testing to confirm their mechanical performance will meet the standards set by the existing range. Figure 4 Exeter V40 Neck Trial. 1 Surgeons who would like to implant Exeter TM V40 TM Hips while continuing to utilize the monobloc rasp system and the impactors will be required to use a different set of trial heads, the Exeter TM Trial Heads for Monobloc Rasps /Exchange Impactors, for trial reduction during surgery.

5 Exeter V40 Modular Core Range Rasp Tray:

6 Exeter V40 General Instrument Tray:

7 Ordering Information: Exeter V40 Instruments Core Range Rasp Tray: # Catalog No. Description mm Offset Small CDH Rasp mm No 0 Rasp mm No 1 Rasp mm No 2 Rasp mm No 3 Rasp mm No 4 Rasp mm No 0 Rasp mm No 1 Rasp mm No 2 Rasp mm No 3 Rasp mm No 4 Rasp (2) 35.5mm Neck Extension (2) 37.5mm Neck Extension (2) 44mm Neck Extension mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head Rasp Handle Exeter Core Range Rasp Tray Single Tier Outer Case Extension 50mm Rasp Tray: (not shown) # P/N Description mm Offset A/P Rasp mm Offset A/P Rasp mm No 1 Rasp mm No 2 Rasp mm No 3 Rasp mm No 4 Rasp mm No 5 Rasp mm Offset Neck Trial mm Offset Neck Trial mm Offset Neck Trial mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head mm V40 Trial Head Slotted Mallett Rasp Handle V40 Introducer V40 Leg Length Gauge Inner Tray Single Tier Outer Case Exeter V40 Optional Instruments: Exeter V40 General Tray: # Catalog No. Description # Catalog No. Description Tapered Pin Reamer Large Slotted Mallet Gouge Half Crook Rasp Handle Gouge Double Crook V40 Introducer Femoral Lever V40 Leg Length Gauge Gluteus Medius Retractor Tapered Pin Reamer Capsulotomy Scissors Box Chisel Horse Collar Backing Plate Calcar Planer Proximal Seal Backing Plate Inner Tray Single Tier Outer Case

8 Ordering Information: Exeter V40 Implants The Complete Range of Exeter V40 Stems Catalog No. Description Rasp Impactor non-v40 non-v Femoral Stem 30mm offset Femoral Stem 33mm offset Femoral Stem 35.5mm offset Femoral Stem 37.5mm offset No Femoral Stem 37.5mm offset No Femoral Stem 37.5mm offset No Femoral Stem 37.5mm offset No Femoral Stem 37.5mm offset No Femoral Stem 44mm offset No Femoral Stem 44mm offset No Femoral Stem 44mm offset No Femoral Stem 44mm offset No Femoral Stem 44mm offset No Femoral Stem 44mm offset No Femoral Stem 50mm offset No Femoral Stem 50mm offset No Femoral Stem 50mm offset No Femoral Stem 50mm offset No Femoral Stem 50mm offset No mm offset No.3 Stem 200mm mm offset No.3 Stem 220mm mm offset No.3 Stem 240mm mm offset No.3 Stem 260mm mm offset No.2 Stem 205mm Exeter Trial Heads For Monobloc Rasps / Exchange Impactors Part Number Exeter Trial Heads For Monobloc Rasps / Exchange Impactors mm Standard mm mm Standard mm mm mm Standard mm mm mm Standard mm Trial Trunnion Protector NEW NEW NEW Orthinox V40 Femoral Heads Catalog No. Description Orthinox V40 Femoral Head 22mm Orthinox V40 Femoral Head 22mm Orthinox V40 Femoral Head 26mm 3mm Neck Orthinox V40 Femoral Head 26mm Orthinox V40 Femoral Head 26mm +4mm Neck Orthinox V40 Femoral Head 26mm +8mm Neck Orthinox V40 Femoral Head 28mm 4mm Neck Orthinox V40 Femoral Head 28mm Orthinox V40 Femoral Head 28mm +4mm Neck Orthinox V40 Femoral Head 28mm +8mm Neck Orthinox V40 Femoral Head 32mm 4mm Neck Orthinox V40 Femoral Head 32mm Orthinox V40 Femoral Head 32mm +4mm Neck Orthinox V40 Femoral Head 32mm +8mm Neck

9 Stryker is a registered trademark of Stryker Corporation. Exeter, Orthinox, and V40 are trademarks of Howmedica Osteonics Corp. Howmedica Osteonics 2002 Lit. No. LEXSS 1.6M 05/02 MC/OI Printed in U.S.A. 59 Route 17 South Allendale, NJ