(30 days)
The Lanx Spinal Fixation System (SFS) is intended to help provide immobilization and stabilization of spinal segments as an adjunct to fusion of the thoracic, lumbar and/or sacral spine. The System is intended for use with autograft or allograft.
The Lanx Spinal Fixation System is intended for posterior, non-cervical (T1-S2/ilium) pedicle and non-pedicle spinal fixation, to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of the following instabilities or deformities: degenerative disc disease (DDD, defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); spondylolisthesis: trauma (i.e. fracture or dislocation); spinal stenosis; deformities or curvatures (i.e. scoliosis, kyphosis and/or lordosis); tumor; pseudoarthrosis; and failed previous fusion.
The Lanx Spinous Process Fusion Plate (SPFP) is a posterior, non-pedicle supplemental fixation device, intended for use at a single level in the non-cervical spine (T1-S1). It is intended for plate fixation/attachment to spinous processes for the purpose of achieving supplemental fusion in the following conditions: degenerative disc disease (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); spondylolisthesis; trauma (i.e., fracture or dislocation); and/or tumor. The Lanx SPFP is intended for use with bone graft material, not intended for stand-alone use.
The purpose of this 510(k) submission is to modify the Surgical Technique for the Lanx Spinal Fixation System. No other changes have been made to the previously cleared system.
The Lanx Spinal Fixation System consists of various screws, hooks, rods, plates, connectors, etc. that are used to build a construct to provide supplemental stabilization of spinal segments to support fusion. The system components can be assembled in a variety of configurations, allowing the surgeon to tailor the construct to the particular needs of the patient.
The Lanx Spinal Fixation System implants are fabricated from medical grade titanium, titanium alloy and/or cobalt chrome alloy per ASTM F67, ASTM F136 and ASTM F136 and ASTM F1537. Titanium and cobalt chrome components may be used together within the same construct. These components should never be used with stainless steel implant components.
This document is a 510(k) summary for a medical device (Spinal Fixation System), not a study report for an AI/algorithm-driven device. Therefore, it does not contain the information requested regarding acceptance criteria and a study proving device performance in the context of an AI/algorithm.
The request asks for details like:
- A table of acceptance criteria and reported device performance (for an AI/algorithm).
- Sample sizes, data provenance, expert ground truth establishment for a test set.
- Adjudication methods, MRMC studies, standalone performance, ground truth types.
- Training set details.
The provided document states: "Performance Data: No performance data was submitted to determine substantial equivalence." This means the submission is not based on new performance testing but rather on demonstrating substantial equivalence to a previously cleared predicate device due to a minor change (modification to the Surgical Technique).
Essentially, this device is a physical spinal implant, not an AI software/algorithm that would have "acceptance criteria" and "study results" in the way described in the prompt. The "performance data" if it were submitted for this type of device would typically relate to mechanical testing (e.g., fatigue, static strength) or biocompatibility, not clinical study outcomes or AI algorithm metrics.
§ 888.3050 Spinal interlaminal fixation orthosis.
(a)
Identification. A spinal interlaminal fixation orthosis is a device intended to be implanted made of an alloy, such as stainless steel, that consists of various hooks and a posteriorly placed compression or distraction rod. The device is implanted, usually across three adjacent vertebrae, to straighten and immobilize the spine to allow bone grafts to unite and fuse the vertebrae together. The device is used primarily in the treatment of scoliosis (a lateral curvature of the spine), but it also may be used in the treatment of fracture or dislocation of the spine, grades 3 and 4 of spondylolisthesis (a dislocation of the spinal column), and lower back syndrome.(b)
Classification. Class II.