The Ascent LE™ POCT system allows surgeons to address complicated fusion cases from the base of the skull down to the thoracic region. The multi-axial screws feature 66° of angulation to minimize rod contouring, while the biased angle screws accommodate a range of patient anatomies. The multi-plane adjustable cross connectors are pre-assembled and utilize a drop-in design for easy insertion. Ascent LE also offers optional occipital fixation plates and is compatible with songer cable systems. The Ascent LE builds upon the proven success of the original Ascent design philosophy, incorporating several technological advances required by the complex demands of Posterior Occipital Cervico-Thoracic surgical procedures.
Indication
When intended to promote fusion of the cervical spine and occipito-cervico-thoracic junction (occiput-T3), the Ascent Posterior Occipital Cervical Thoracic System is indicated for:
* Degenerative disc disease (defined as neck pain of discogenic origin with degeneration of the disc confirmed by patient history and radiographic studies)
* Spondylolisthesis
* Fracture/dislocation
* Spinal stenosis
* Atlanto-axial fracture with instability
* Occipito-cervical dislocation
* Tumors
* Revision of previous cervical spine surgery
Physician Benefits
Occipital anchor plates accommodate varying patient anatomies
Hooks for cervical application
Angulated Screws maximize range of motion and minimize rod contouring
Pre-assembled Cross Connector provides multi-plane adjustability: translation, rotation and angulation
Connectors enable extended construct from thoracic to lumbar region
Multi-Axial Screws and Cross-Connectors
* Multi-Axial Screws feature 66°of angulation to minimize rod contouring and make obtaining optimal bone purchase a simpler task.
* Medial/lateral and Cephalad/Caudal Biased angle screws with 45° angulation in direction of bias
* Smooth Shank screws with 8mm of smooth shank on each screw
* Screws available in 3.5mm and 4.0mm diameters and are color-coded for easy identification
* Multi-Axial Adjustable Cross Connectors are pre-assembled and utilize a drop-in design to add additional torsional rigidity to the construct
* Top-loading/top-tightening design also enhances medial-lateral variability and increases flexibility at transitional segments, enabling translation, rotation and angulation
* Together, the screws and cross connectors increase efficiency while decreasing procedural steps.
Occipital Fixation
* With four plate widths (31, 37, 45 and 50mm), the Occipital Anchor Plates accommodate varying patient anatomies.
* Four points of fixation to the occiput provide added security
* Occipital Plate enables fixation to extend to occiput
* 4 points of fixation
Instrumentation
* Rod cutter with single handed ratcheting action for ease of use
* Multi-Axial Screwdriver improves coaxial alignment with screw and also has a sleeve to protect surrounding soft tissue
* Rod reducer for simultaneous rod reduction and set screw placement while allowing surgeons a clear field of vision
Contraindications
* Morbid obesity
* Mental illness
* Alcoholism or drug abuse
* Pregnancy
* Metal sensitivity/allergies
* Severe osteopenia
* Patients unwilling or unable to follow post-operative care instructions
* Any circumstances not listed under the heading Indications