Zero-P Spacers 35pcs Set – Zero-Profile Cervical Implant and Instrument System for ACDF

The Zero-P Spacers 35pcs Set with Cervical Implant and Instrument System from Peak Surgicals is a 35-piece cervical spine surgery set combining zero-profile anterolateral fixation spacers across a range of heights and lordotic angles with the dedicated insertion, distraction, and fixation instruments required to perform anterior cervical discectomy and fusion (ACDF) using the zero-profile spacer technique. The set eliminates the need for a separate anterior cervical plate in single-level ACDF, reducing the implant profile at the disc space and the associated risk of dysphagia from anterior plate prominence. It is used by spine surgeons and neurosurgeons in hospital operating theatres performing cervical ACDF for disc herniation, cervical spondylosis, and cervical instability requiring anterior interbody fusion.

Zero-Profile Anterolateral Fixation in Anterior Cervical Discectomy and Fusion

Anterior cervical discectomy and fusion is the standard surgical treatment for cervical disc herniation and cervical spondylotic myelopathy or radiculopathy that has failed conservative management. The conventional ACDF technique uses a separate interbody spacer to restore disc height and lordosis, and an anterior cervical plate with screws to provide immediate fixation and prevent graft subsidence. Zero-profile spacer systems combine these two components into a single integrated implant — the spacer incorporates screw channels that allow anterolateral fixation screws to be inserted from within the disc space into the adjacent vertebral bodies, providing the fixation function of an anterior plate without the anterior profile that extends onto the vertebral body surfaces. The absence of anterior plate bulk is associated with reduced postoperative dysphagia compared to traditional plated ACDF, making zero-profile systems the preferred technique in many spine surgery centres for single-level and selected multi-level cervical ACDF.

35-Piece Set: Spacer Implants Across Height and Lordosis Configurations

The 35-piece count of this set reflects the spacer implant matrix across multiple disc height and lordotic angle combinations required to accommodate the range of cervical disc space dimensions encountered intraoperatively. Cervical disc space height varies by level, patient, and degree of disc collapse, typically ranging from 5mm to 10mm at the operative level after discectomy and endplate preparation. The lordotic angle of the spacer — typically available in 0°, 5°, and 7° configurations — determines the contribution of the spacer to segmental and regional cervical lordosis restoration. Selecting the correct spacer height and lordosis intraoperatively requires trial spacers and sizing instruments to confirm fit before the definitive implant is placed and fixed. The complete 35-piece set provides coverage across the full size and angle matrix needed to manage the range of cervical disc space presentations encountered in a spine surgery programme, from standard-height spaces to collapsed, flat, and kyphotic presentations requiring height restoration and lordosis correction.

Cervical Discectomy and Spacer Insertion Instruments

The instrument component of the set provides the dedicated tools required for the anterior cervical approach, disc space preparation, spacer trialling, and anterolateral screw fixation. Distraction instruments allow the disc space to be opened to the appropriate height before trial spacer insertion, preventing undersizing and ensuring adequate neural decompression is maintained after spacer placement. Trial spacers are inserted sequentially to confirm the correct height and angle before the definitive implant is selected. The spacer insertion instrument engages the implant securely for accurate placement at the correct depth and orientation within the disc space, avoiding endplate breach or retropulsion. The screw driver and fixation instruments allow the anterolateral screws to be passed through the integrated screw channels of the spacer and into the adjacent vertebral bodies in the correct trajectory for secure fixation. Together, the instrument set supports a complete, reproducible zero-profile ACDF workflow from disc space preparation through to final fixation confirmation.

Surgical-Grade Stainless Steel Construction

The instruments in the set are manufactured from surgical-grade stainless steel, providing the rigidity and dimensional stability required for cervical disc space distraction, trial spacer insertion in a constrained surgical exposure, and screw fixation instrument use. Instrument dimensions in cervical spine surgery are tightly constrained by the limited anterior exposure available between the carotid sheath laterally and the trachea and oesophagus medially, making precision-machined, slim-profile instruments essential for safe intraoperative use. The stainless steel instruments are compatible with standard autoclave sterilization protocols used in licensed hospital operating theatre environments.

CE Mark, ISO 13485, and FDA Certification for Spine Surgery Instrument Procurement

The Zero-P Spacers 35pcs Set with Cervical Implant and Instrument System is manufactured under CE Mark, ISO 13485, and FDA compliant quality standards. ISO 13485 certification confirms Peak Surgicals operates a documented quality management system covering design control, material traceability, and production consistency for surgical instruments and implant systems. CE Mark confirms conformity with European medical device regulations, and FDA compliance supports procurement for US-based hospitals, spine surgery centres, and neurosurgical departments requiring verified regulatory documentation for capital instrument and implant set purchases.

Product Specifications

Frequently Asked Questions

What is a zero-profile cervical spacer and how does it differ from conventional ACDF?
In conventional ACDF, two separate implants are used: an interbody spacer or cage placed within the disc space to restore height and lordosis, and an anterior cervical plate fixed with screws to the anterior surfaces of the adjacent vertebral bodies to provide immediate construct stability and prevent graft subsidence. The anterior plate sits proud of the vertebral body surfaces, creating an anterior profile that can contact or irritate the oesophagus, contributing to postoperative dysphagia — one of the most common complications of anterior cervical surgery. A zero-profile spacer system integrates the fixation function into the spacer itself, using screws that pass from the spacer into the vertebral bodies through channels within the implant. Because no plate extends onto the vertebral body anterior surfaces, the implant has no anterior profile beyond the disc space, reducing the contact area with the oesophagus and the associated dysphagia risk.

What conditions is anterior cervical discectomy and fusion with a zero-profile spacer used to treat?
ACDF using a zero-profile spacer system is indicated for cervical disc herniation causing radiculopathy or myelopathy that has failed at least six weeks of conservative management, cervical spondylosis with foraminal stenosis causing neurological compromise, cervical instability requiring anterior column stabilization, and selected cases of cervical kyphosis requiring anterior discectomy and lordosis restoration. The procedure is performed at one or more cervical levels, most commonly at C5–C6 and C6–C7, with single-level cases being the most common indication for zero-profile spacer systems. Multi-level ACDF using zero-profile spacers is also performed, with the implant design ensuring each level is independently fixed without requiring a spanning anterior plate.

Why does the set contain 35 pieces if only one spacer is used per level?
The 35-piece count reflects the complete system — not the number of implants used in a single procedure. The set includes spacer implants in multiple height increments (typically 5mm, 6mm, 7mm, 8mm, 9mm, 10mm or similar) and multiple lordotic angle options (typically 0°, 5°, 7°) to cover the range of cervical disc space dimensions and lordosis requirements encountered across different patients, levels, and clinical presentations. It also includes trial spacers for each size and angle combination, which are inserted and removed during the procedure to confirm fit before the definitive implant is placed. The instruments — distractor, trial inserter, implant holder, screw driver, and associated accessories — make up the remaining pieces. Together, the full 35-piece set provides everything needed for a complete ACDF workflow without requiring additional instrumentation.

How is dysphagia risk reduced with a zero-profile spacer compared to an anterior cervical plate?
Dysphagia after anterior cervical surgery results primarily from soft tissue swelling, haematoma, and direct mechanical irritation of the posterior oesophageal wall by the anterior cervical plate, which sits against the oesophagus throughout the healing period. The protruding profile of the anterior plate — which spans from the disc space onto the adjacent vertebral body surfaces — maintains ongoing contact pressure on the oesophagus during swallowing movements. Zero-profile spacers have no component that extends onto the anterior vertebral body surface; the implant sits entirely within the disc space with only the small screw heads flush with or recessed below the level of the anterior vertebral surface. Multiple clinical studies comparing zero-profile ACDF with plated ACDF have reported lower rates of early postoperative dysphagia in zero-profile groups, making this technique preferable for patients who are at higher risk of swallowing complications.

What certifications does this set carry?
The Zero-P Spacers 35pcs Set is manufactured under CE Mark, ISO 13485, and FDA compliant quality standards. ISO 13485 certification confirms Peak Surgicals operates a documented quality management system covering design control, material traceability, and manufacturing consistency for surgical instruments and implant systems. CE Mark confirms conformity with European medical device regulations, and FDA compliance supports procurement for US hospitals, spine surgery centres, and neurosurgical departments requiring verified regulatory documentation.

Can the spacer heights and lordotic angles in this set be customised for a specific programme?
OEM manufacturing and custom configurations are available from Peak Surgicals for hospital procurement departments and spine surgery distributors requiring specific height and angle matrix combinations, custom packaging, or modified instrument specifications. Contact Peak Surgicals directly to confirm the exact spacer height range and lordotic angle options included in the standard 35-piece set, or to discuss a custom configuration matched to your spine surgery programme's implant usage profile.