(100 days)
The Overwatch Spine System is intended for non-cervical fixation (T1-S2/Ilium) in skeletally mature patients as an adjunct to following instabilities/deformities in the thoracolumbar and sacral spine: a) degenerative disc disease (defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies) b) spondylolisthesis, c) trauma (i.e., fracture or dislocation), d) spinal stenosis, e) deformities or curvatures (i.e., scoliosis, kyphosis, and/or lordosis). f) tumor, g) pseudoarthrosis, and h) failed previous fusion The Overwatch Spine System is intended for the following indications when used in a posterior percutaneous approach for non-cervical pedicle and non-pedical fixation: Degenerative disc disease; spondylolisthesis; trauma (i.e. fracture or dislocation); spinal stenosis; curvatures (i.e. scolosis, kyphosis and/or lordosis); tumor; pseudoarthrosis; and/or failed previous fusion When used for posterior non-cervical pedicle screw fixation in pediatric patients the Overwatch Spine System implants are indicated as an adjunct to fusion to treat adolescent idiopathic scoliosis. These devices are to be used with autograft and/or allograft. Pediatric pedicle screw fixation is limited to a posterior approach.
The Overwatch Spine System consists of spinal implants for fixation of the thoracolumbar and/or sacral spine. The system includes rods, screws, transverse crosslinks, rod connectors, and hooks. The Overwatch screws are self-tapping and are available with either a cancellous or a dualfix thread design. They are available in cannulated and noncannulated configurations, in a variety of diameters and lengths. The system implants are manufactured from Ti-6Al-4V (ASTM F136).
The provided document is a 510(k) premarket notification for a medical device called the "Overwatch Spine System." It describes the device, its intended use, and a summary of performance testing to demonstrate substantial equivalence to legally marketed predicate devices.
However, the document does not describe acceptance criteria or a study that proves the device meets those criteria in the context of an AI/ML powered device. The "Summary of Performance Testing" section refers to mechanical testing of the spinal fixation system, not a clinical study involving data provenance, expert ground truth, sample sizes for training/test sets, or comparative effectiveness studies with human readers.
Therefore, I cannot provide the requested information for an AI/ML context based on this document. The document focuses on the mechanical and material equivalence of a physical medical device.
§ 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.