Lumbar Interbody Fusion Flashcards
(42 cards)
PLIF
Posterior Lumbar Interbody Fusion
TLIF
Transforaminal Lumbar Interbody Fusion
Basic Steps for TLIF Surgical Technique
- Access
- (retractors, ronguers, pituitary, light source)
- Diskectomy
- Trial
- Implant (Opal, T-Pal)
Modic Change
White-ness around anterior aspect of vertebral bodies on xray. Indicates inflammation
Goals of Interbody Fusion
- Anterior column support
- Restoration of disc height
- Restore patency of intervertebral foramen
- Restoration of sagittal balance
- Bony fusion
Where is muscle retraction taking place on an “open” posterior lumbar approach?
Midway-point of transverse process
What are the posterior interbody surgical / surgery options?
PLIF
TLIF
Modified PLIF
Modified TLIF
What neural structure must you retract during PLIF?
Cauda Equina
What neural structure must you retract during TLIF?
Nerve Root
Traditional PLIF involves…
- Laminectomy or Laminotomy
- Retraction of Cauda Equina
- Diskectomy
- Placement of 2 Spacers
TLIF options
- Opal Spacer
- Concorde Bullet (Lumbar Interbody System)
- TPAL Spacer
Interbody spacer material options
- Human Allograft Tissue
- PEEK (Polyether ether ketone)
- CFRP (carbon fiber reinforced polymer)
Supplemental fixation (screw and rod construct) during a PLIF or TLIF may be used to ______
- Compress the graft
- Restoration of posterior tension band
- Restoration of sagittal alignment
Is pairing Vivigen with TPAL an on-Label use?
TPAL, OPAL and Concorde Bullett are only to be paired with AUTOgenous graft.
What device/instrument allowed us to go posterolateral to anterior with our implants.
The Pivoting Applicator
Is the Peek cage is Radioluscent or Radioopaque?
Radioluscent
Advantages of TLIF
Placement
Load-Sharing
What does T-PAL Stand for?
Transforaminal Posterior Atraumatic Lumbar
Challenges to TLIF
- Performing through MIS approach
- Multiple insertion instruments
- Answer: Pivoting Applicator=Less instruments
- Placement of Implant in desired position
- Answer: Pivoting Applicator
TPAL Implant
Rails + Pressure = Guidance
TPAL Benefits
- Facilitates self-destraction and insertion
- Accommodates individual patient anatomy
- Guided is insertion
TPAL Features
- Bullett-Tipped Nose
- Guided Rails
- Convex superior and inferior implant surfaces
Thoracic pedicle screw insertion point
Below both, the rim of the superior facet and the base of the transverse process
Lumbar pedicle screw entry point
Lateral facet of the superior facet and the base of the transverse process