(126 days)
LineSider™ Spinal System, with or without MIS instrumentation, is intended for posterior, non-cervical fixation in skeletally mature patients as an adjunct to following indications: 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); spinal stenosis; curvatures (i.e., scoliosis, kyphosis and/or lordosis); tumor; pseudarthrosis; and/or failed previous fusion.
When used for posterior non-cervical pedicle screw fixation in pediatic patients, LineSider™ Spinal System implants are indicated as an adjunct to fusion to treat progressive spinal deformities (i.e., scoliosis, or lordosis) including idiopathic scoliosis, neuromuscular scoliosis, and congenital scoliosis. Additionally, LineSider™ Spinal System is intended to treat pediatric patients diagnosed with the following conditions: spondylolisthesis/spondylolysis; fracture caused by tumor and/or trauma. LineSider™ Spinal System is intended to be used with autograft and/or allograff. Pediatric pedicle screw fixation is limited to a posterior approach.
The LineSider™ Spinal System is a thoracolumbosacral pedicle screw system containing metallic implants intended to provide immobilization of spinal segments. The system consists of a variety of screws, hooks, rods, set screws, crosslink connectors, rod-to-rod connectors, iliac connectors, and associated instruments. Components are offered in various shapes and sizes to meet the requirements of the individual patient anatomy.
The provided text describes the LineSider™ Spinal System, a thoracolumbosacral pedicle screw system, and its FDA 510(k) clearance. However, it does not contain information about acceptance criteria and a study that proves the device meets those criteria in the context of AI/ML device performance.
The document is a traditional 510(k) clearance letter for a physical medical device (spinal system), which focuses on mechanical performance and substantial equivalence to predicate devices, rather than AI/ML algorithm performance.
Therefore, I cannot extract the requested information regarding AI/ML device performance, as it is not present in the provided text.
Here's why and what information is available:
- Acceptance Criteria & Reported Device Performance (AI/ML): Not applicable. The document discusses mechanical testing criteria for a physical spinal implant, such as static axial compression, static torsion, and dynamic axial compression bending fatigue. It states: "The results of this non-clinical testing show that the strength of the LineSider™ Spinal System is sufficient for its intended use and is substantially equivalent to legally marketed predicate devices." No specific quantitative acceptance criteria or reported performance metrics for an AI/ML component are provided because there isn't one.
- Sample size and data provenance (AI/ML): Not applicable.
- Number of experts and qualifications (AI/ML): Not applicable.
- Adjudication method (AI/ML): Not applicable.
- MRMC comparative effectiveness study (AI/ML): Not applicable.
- Standalone (algorithm only) performance (AI/ML): Not applicable.
- Type of ground truth (AI/ML): Not applicable.
- Training set sample size (AI/ML): Not applicable.
- How ground truth for training set was established (AI/ML): Not applicable.
Summary of what is available in the document regarding traditional device testing:
- Device Name: LineSider™ Spinal System
- Regulatory Class: Class II
- Product Code: NKB, KWP
- Predicate Devices: K170126 (NuVasive® Reline® 4.5-5.0 System) and K041449 (Synergy VLS)
- Performance Tests Conducted:
- Static axial compression bending per ASTM F1717-18
- Static torsion per ASTM F1717-18
- Dynamic axial compression bending fatigue per ASTM F1717-18
- Conclusion: "The overall technology characteristics and mechanical performance data lead to the conclusion that the LineSider™ Spinal System is substantially equivalent to the predicate devices."
§ 888.3070 Thoracolumbosacral pedicle screw system.
(a)
Identification. (1) Rigid pedicle screw systems are comprised of multiple components, made from a variety of materials that allow the surgeon to build an implant system to fit the patient's anatomical and physiological requirements. Such a spinal implant assembly consists of a combination of screws, longitudinal members (e.g., plates, rods including dual diameter rods, plate/rod combinations), transverse or cross connectors, and interconnection mechanisms (e.g., rod-to-rod connectors, offset connectors).(2) Semi-rigid systems are defined as systems that contain one or more of the following features (including but not limited to): Non-uniform longitudinal elements, or features that allow more motion or flexibility compared to rigid systems.
(b)
Classification. (1) Class II (special controls), when intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of the following acute and chronic instabilities or deformities of the thoracic, lumbar, and sacral spine: severe spondylolisthesis (grades 3 and 4) of the L5-S1 vertebra; degenerative spondylolisthesis with objective evidence of neurologic impairment; fracture; dislocation; scoliosis; kyphosis; spinal tumor; and failed previous fusion (pseudarthrosis). These pedicle screw spinal systems must comply with the following special controls:(i) Compliance with material standards;
(ii) Compliance with mechanical testing standards;
(iii) Compliance with biocompatibility standards; and
(iv) Labeling that contains these two statements in addition to other appropriate labeling information:
“Warning: The safety and effectiveness of pedicle screw spinal systems have been established only for spinal conditions with significant mechanical instability or deformity requiring fusion with instrumentation. These conditions are significant mechanical instability or deformity of the thoracic, lumbar, and sacral spine secondary to severe spondylolisthesis (grades 3 and 4) of the L5-S1 vertebra, degenerative spondylolisthesis with objective evidence of neurologic impairment, fracture, dislocation, scoliosis, kyphosis, spinal tumor, and failed previous fusion (pseudarthrosis). The safety and effectiveness of these devices for any other conditions are unknown.”
“Precaution: The implantation of pedicle screw spinal systems should be performed only by experienced spinal surgeons with specific training in the use of this pedicle screw spinal system because this is a technically demanding procedure presenting a risk of serious injury to the patient.”
(2) Class II (special controls), when a rigid pedicle screw system is intended to provide immobilization and stabilization of spinal segments in the thoracic, lumbar, and sacral spine as an adjunct to fusion in the treatment of degenerative disc disease and spondylolisthesis other than either severe spondylolisthesis (grades 3 and 4) at L5-S1 or degenerative spondylolisthesis with objective evidence of neurologic impairment. These pedicle screw systems must comply with the following special controls:
(i) The design characteristics of the device, including engineering schematics, must ensure that the geometry and material composition are consistent with the intended use.
(ii) Non-clinical performance testing must demonstrate the mechanical function and durability of the implant.
(iii) Device components must be demonstrated to be biocompatible.
(iv) Validation testing must demonstrate the cleanliness and sterility of, or the ability to clean and sterilize, the device components and device-specific instruments.
(v) Labeling must include the following:
(A) A clear description of the technological features of the device including identification of device materials and the principles of device operation;
(B) Intended use and indications for use, including levels of fixation;
(C) Identification of magnetic resonance (MR) compatibility status;
(D) Cleaning and sterilization instructions for devices and instruments that are provided non-sterile to the end user; and
(E) Detailed instructions of each surgical step, including device removal.
(3) Class II (special controls), when a semi-rigid system is intended to provide immobilization and stabilization of spinal segments in the thoracic, lumbar, and sacral spine as an adjunct to fusion for any indication. In addition to complying with the special controls in paragraphs (b)(2)(i) through (v) of this section, these pedicle screw systems must comply with the following special controls:
(i) Demonstration that clinical performance characteristics of the device support the intended use of the product, including assessment of fusion compared to a clinically acceptable fusion rate.
(ii) Semi-rigid systems marketed prior to the effective date of this reclassification must submit an amendment to their previously cleared premarket notification (510(k)) demonstrating compliance with the special controls in paragraphs (b)(2)(i) through (v) and paragraph (b)(3)(i) of this section.