Titanium Coating Fusion PLIF Cage

Product Overview

The Titanium Coating PLIF Fusion Cage is a state-of-the-art interbody device engineered for posterior lumbar interbody fusion procedures. Featuring a microporous titanium plasma spray coating, this cage promotes rapid bone ongrowth and enhances immediate mechanical stability at the bone-implant interface. The rough, porous surface increases the friction coefficient, effectively reducing micro-motion and the risk of cage migration or subsidence. Available in multiple anatomical footprints—including width options from 8 mm to 14 mm, lengths of 22 mm and 26 mm, with a consistent 10 mm height—this system provides surgeons with versatile choices for restoring disc height and achieving solid segmental fusion. The large central graft window accommodates generous bone graft packing, maximizing the fusion surface area. By combining the biological advantages of titanium coating with the clinical reliability of PLIF technique, this cage system delivers superior fusion rates and reduces revision burden in patients with lumbar degenerative conditions.

Indications for Use

The Titanium Coating PLIF Fusion Cage is indicated for the following clinical scenarios:

• Degenerative disc disease of the lumbar spine (L1–S1) with intractable low back pain unresponsive to conservative treatment.

• Grade I and II spondylolisthesis requiring interbody stabilization and indirect decompression of compressed nerve roots.

• Lumbar spinal stenosis with neurogenic claudication, where restoration of disc height and foraminal volume achieves indirect neural decompression.

• Recurrent disc herniation following failed discectomy, requiring disc space clearance and interbody fusion to prevent re-rupture.

• Post-laminectomy instability where posterior element resection has compromised spinal stability and fusion is indicated.

• Adjacent segment disease after prior lumbar fusion, where a posterior approach allows revision without disrupting previously placed anterior or lateral hardware.

• Pseudoarthrosis repair following failed interbody fusion, where the titanium-coated surface provides enhanced biological stimulation for salvage fusion.

• Traumatic lumbar fractures requiring anterior column support and posterior stabilization.

Key Advantages

Technical Specifications & Sizing

Size Range Overview

The Titanium Coating PLIF Fusion Cage is available in a compact yet comprehensive sizing matrix. The system offers four width options (8, 10, 12, 14 mm) and two length options (22, 26 mm), with a consistent 10 mm height across all configurations.

Key Dimensional Parameters:

• Width: 8, 10, 12, 14 mm (four width options)

• Length: 22, 26 mm (two length options)

• Height: 10 mm (fixed, for consistent disc distraction)

• Material: PEEK with titanium plasma spray coating

• Coating: Microporous titanium (Ti) deposited via vacuum plasma spray

• Graft Window: Large central aperture for bone graft containment

• Geometric Design: Anatomical kidney-shaped footprint for optimal endplate coverage

Detailed Dimension Table (PLIF Cage - GB3Z-02/S)

Note: For a typical PLIF procedure, two cages of the same size are implanted bilaterally—one on each side of the midline—to achieve symmetric support. Product codes ending with "0" typically indicate 10 mm width, while the numeric sequence reflects the specific dimension configuration. All cages are supplied sterile and single-use with a validated 5-year shelf life.

Recommended Companion Instrument Set

The Titanium Coating PLIF Fusion Cage System is complemented by a dedicated posterior lumbar instrument set, which includes:

RFQ – Request for Quotation

Q1: What graft materials are recommended for packing the PLIF cage, and what is the optimal graft volume?
A: We recommend packing the central window with autologous local bone harvested from the laminectomy or facetectomy, which provides osteoinductive and osteoconductive properties. For cases where autograft quantity is insufficient, we suggest combining it with bone substitutes such as demineralized bone matrix (DBM), biphasic calcium phosphate, or cancellous allograft chips. The graft volume varies by cage size—approximately 1.8–2.2 cc for the 22 mm length and 2.4–2.8 cc for the 26 mm length. We recommend firmly packing the graft to avoid void spaces, as this maximizes the biological fusion surface and reduces the risk of pseudoarthrosis.

Q2: Can this titanium-coated PLIF cage be used as a stand-alone device without pedicle screw fixation?
A: Yes, the titanium coating provides enhanced friction and initial stability, which allows stand-alone use in carefully selected patients—typically those with single-level degenerative disc disease, intact posterior elements, and good bone quality (T-score > -1.5). However, for multi-level procedures, Grade II spondylolisthesis, osteoporotic bone, or patients with significant instability, we strongly recommend supplemental posterior pedicle screw fixation to provide rigid segmental stabilization during the critical fusion maturation phase. The final decision should always be individualized based on the patient's biomechanical requirements.

Q3: What is the scientific rationale for titanium coating compared to PEEK or allograft cages?
A: The titanium microporous coating serves two critical biological functions. First, the porous surface provides a scaffold for osteoblast migration and bone ingrowth—a process that begins as early as 2–3 weeks postoperatively, achieving mechanical interlocking by 3–6 months. Second, titanium has been shown to upregulate osteogenic gene expression in adjacent cells, promoting a more favorable fusion environment compared to bio-inert PEEK surfaces. Our preclinical studies demonstrate that the titanium-coated surface increases bone-implant contact by 40% at 12 weeks compared to smooth PEEK, and the rough topography enhances shear strength by over 50%, making it a superior choice for revision-prone patients or those with suboptimal bone quality.

Q4: How do I determine the correct cage size intraoperatively, and what is the recommended surgical technique for PLIF?
A: We recommend sequential trialing beginning with the smallest width and length combination. Under fluoroscopic guidance, the trial is inserted bilaterally to ensure proper disc space restoration and endplate coverage—the cage should span the apophyseal ring without overhanging into the canal or vertebral body. The correct height should restore the disc space to the normal anatomical height (typically measured on the preoperative lateral X-ray) without excessive tension on the annulus or nerve roots. Once the appropriate size is confirmed bilaterally, the final titanium-coated cages are packed with graft and gently impacted into position. Post-insertion imaging should verify that the cages are parallel and symmetrically placed. For more detailed guidance, we provide a full surgical technique guide and proctoring support for new users.

Q5: What sterilization methods are recommended for the instrument set, and are the implants supplied sterile?
A: All PLIF cages are supplied sterile in individual blister packs, with a 5-year shelf life from the date of manufacture. They are intended for single use only. The instrument set components are non-sterile and must be thoroughly cleaned and steam autoclaved at 134°C for 18 minutes prior to each surgical procedure. The instruments are manufactured from surgical-grade stainless steel with corrosion-resistant finishes and are fully validated for multiple autoclaving cycles. We recommend regular inspection of the inserters and trials for signs of wear, particularly on the engaging surfaces.

Q6: What is the typical delivery lead time and minimum order quantity (MOQ) for this PLIF cage system?
A: Our standard MOQ is 10 units per size, but we are flexible with initial trial orders of mixed sizes (minimum 5 total units) for first-time hospital evaluations. For standard orders of 50 units or more, our production lead time is 15–20 working days after order confirmation and deposit receipt. We maintain a modest safety stock of the most commonly used sizes (10×26 mm and 12×26 mm), which can be shipped within 48 hours for urgent clinical needs. Please contact our export team to discuss specific order configurations and expedited shipping options.