Poliax protesis

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  • Publicado : 27 de abril de 2011
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WIDE

ANGLE

FREEDOM

S U R G I C A L T E C H N I Q U E

PROXIMAL TIBIAL LOCKED PLATING SYSTEM

TABLE OF CONTENTS INTRODUCTION AND INDICATIONS SYSTEM FEATURES SURGICAL TECHNIQUE PATIENT POSITIONING AND TEMPLATING INCISION PERCUTANEOUS APPROACH AND PLATE PLACEMENT PRELIMINARY FIXATION LOCK-THE-BOX VARUS-VALGUS CORRECTION 4.0 MM CANCELLOUS LOCKING AND NON-LOCKING SCREWS 5.5 MM CANCELLOUSLOCKING AND NON-LOCKING SCREWS 4.5 MM NON-LOCKING SHAFT SCREWS 4.5 MM LOCKING SHAFT SCREWS ESSENTIAL PRODUCT INFORMATION INSTRUMENT CATALOG

1 2 3 3 4 5 6 7 8 10 12 16 18 21 22

1 INTRODUCTION
The POLYAX™ Locked Plating System is indicated for the treatment of distal femur and proximal tibia fractures. The system is intended for use in open or percutaneous fracture fixation cases requiringOpen Reduction Internal Fixation (ORIF) of closed and open fractures of the distal femur and proximal tibia, including repair of non-unions and malunions. The POLYAX Locked Plating System is designed to give the surgeon maximum flexibility with the use of fixedangle locking, variable-angle locking and non-locking screw options. The result is Tibial locked plating system. fracture fixation based oneach individual patient's fracture type, bone quality and anatomy. The POLYAX femoral and tibial plates are designed for placement on the lateral side of the distal femur and proximal tibia, respectively, and are pre-contoured to closely match the anatomy of the bones. Each plate is manufactured from TiMAX™ anodized titanium alloy Ti-6Al-4V, which gives the plates superior fatigue strength,excellent biocompatibility and optimal stress transfer. The screws are manufactured from color-anodized titanium alloy Ti-6Al-4V for easy identification and selection in the OR. All instruments are color-coded in accordance with associated color-anodized screws to enhance surgical efficiency. The system includes a handle and radiolucent target guide that connects to the plate for minimally invasiveplate and screw insertion, as well as several tools to aid in fracture reduction.

LOCKING MECHANISM
Screw locking is accomplished either by threading a screw directly into the plate (fixed-angle construct) or into a patented polyaxial bushing (variable-angle construct) contained within the plate. The screw's locking portion consists of a triple-lead, tapered-thread on the screw head, which isdesigned to engage the plate or bushings. The bushings allow the surgeon to lock screws in place at a desired angle within a maximum 30-degree cone of angulation. Non-locking screws are provided for placement in either a fixed locking hole or polyaxial bushing.

Minimal radial force on bushings (pre-load only)

Partial radial force on bushings

Full radial force on bushings

Polyaxial bushingoperation.

INDICATIONS
The POLYAX Locked Plating System is intended for use in: • • • • Periarticular fractures Periprosthetic fractures Malunions Non-unions

INTRODUCTION AND INDICATIONS

2

SYSTEM FEATURES

The most proximal fixation of the tibial POLYAX Locked Plating System construct includes a row of three 4.0 mm polyaxial bushings. Slightly distal to the 4.0 mm holes is atriangular arrangement of three 5.5 mm polyaxial bushings in the head/neck area of the plate. The distal plate stem provides fixed-locked screw holes for 4.5 mm locking or 4.5 mm nonlocking screws. Plates are available in lengths of 2, 5, 8, 11 and 14 holes (Cat. No. 814132-0XX—right, 8141-33-0XX—left) and four K-wire holes are included in the plate for optional intra-operative temporary fixation.

AOR B
A
5.5 mm Locking Cancellous Cat. No. 8153-55-XXX 25-100 mm in 5 mm increments

C OR D
B
5.5 mm Non-locking Cancellous Cat. No. 8154-55-XXX 40-100 mm in 5 mm increments

E OR F
S C R E W S

C
4.0 mm Locking Cancellous Cat. No. 8153-04-XXX 50-100 mm in 5 mm increments

D
4.0 mm Non-locking Lag Cancellous Cat. No. 8155-40-XXX 50-100 mm in 5 mm increments

E
4.5 mm Locking...
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