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The IdentiTi Porous Ti Interbody System is indicated for spinal fusion procedures in skeletally mature patients at one or two contiguous levels in the thoracolumbar spine.
Thoracic: T1-T2 to T11-T12, or at the thoracolumbar junction (T12-L1), following discectomy for the treatment of a symptomatic degenerative disc disease (DDD), including thoracic disc hemiation (myelopathy with or without axial pain).
Lumbar: L1-L2 to L5-S1, for the treatment of degenerative disc disease (DDD) with up to Grade I spondylolisthesis or retrolisthesis at the involved level(s). DDD is defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies.
The IdentiTi Porous Ti Interbody System is intended for use on patients who have had at least six months of nonoperative treatment. It is intended for use with autograft comprised of cancellous and/or corticocancellous bone graft and supplemental fixation systems that are cleared by FDA for use in the thoracic and lumbar spine.

The IdentiTi Interbody System with advanced NanoTec surface treatment is indicated for spinal fusion procedures in skeletally mature patients at one or two contiguous levels in the thoracolumbar spine.
Thoracic: T1-T2 to T11-T12, or at the thoracolumbar junction (T12-L1), following discectomy for the treatment of a symptomatic degenerative disc disease (DDD), including thoracic disc hemiation (myelopathy with or without axial pain).
Lumbar: L1-L2 to L5-S1, for the treatment of degenerative disc disease (DDD) with up to Grade I spondy)olisthesis or retrolisthesis at the involved level(s). DDD is defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies.
The IdentiTi NanoTec Interbody System is intended for use on patients who have had at least six months of non-operative treatment. It is intended for use with autograft comprised of cancellous and/or corticocancellous bone graft and supplemental fixation systems that are cleared by FDA for use in the thoracic and lumbar spine.

The Transcend PEEK Interbody System is indicated for spinal fusion procedures in skeletally mature patients at one or two contiguous levels in the thoracolumbar spine.
Thoracic: T1-T2 to T11-T12, or at the thoracolumbar junction (T12-L1), following discectomy for the treatment of a symptomatic degenerative disc disease (DDD), including thoracic disc hemiation (myelopathy with or without axial pain).
Lumbar: L1-L2 to L5-S1, for the treatment of degenerative disc disease (DDD) with up to Grade I spondylolisthesis or retrolisthesis at the involved level(s). DDD is defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies.
The Transcend PEEK Interbody System is intended for use on patients who have had at least six months of non-operative treatment. It is intended for use with autograft comprised of cancellous and/or corticocancellous bone graft and supplemental fixation systems that are cleared by FDA for use in the thoracic and lumbar spine.

The Transcend PEEK Interbody System with advanced NanoTec surface treatment is indicated for spinal fusion procedures in skeletally mature patients at one or two contiguous levels in the thoracolumbar spine. Thoracic: T1-T2 to T11-T12, or at the thoracolumbar junction (T12-L1), following discectomy for the treatment of a symptomatic degenerative disc disease (DDD), including thoracic disc hemiation (myelopathy with or without axial pain).
Lumbar: L1-L2 to L5-S1, for the treatment of degenerative disc disease (DDD) with up to Grade I spondylolisthesis or retrolisthesis at the involved level(s). DDD is defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies.
The Transcend NanoTec PEEK Interbody System is intended for use on patients who have had at least six months of nonoperative treatment. It is intended for use with autograft and/or allografi comprised of cancellous and/or corticocancellous bone graft and supplemental fixation systems that are cleared by FDA for use in the thoracic and lumbar spine.

The IdentiTi ALIF Standalone Intern is indicated for spinal fusion procedures in skeletally mature patients. The IdentiTi ALIF Standalone Interbody System implants of ≥20° are a standalone system. The IdentiTi ALIF Standalone Interbody System implants of >20° must be used with supplemental spinal fixation systems cleared by the FDA for use in the lumbar spine in addition to the integrated screws.
The IdentiTi ALIF Standalone Interbody System is intended for use at one or two contiguous levels in the lumbar spine (L2-S1) for the treatment of degenerative disc disease (DDD) with up to Grade I spondylolisthesis at the involved level(s). DDD is defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies. The IdentiTi ALIF Standalone Interbody System is intended for use on patients who have had at least six months of non-operative treatment. It is intended for use with autograft comprised of cancellous and/or corticocancellous bone graft.

The IdentiTi ALIF Standalone International NanoTec surface treatment is indicated for spinal fusion procedures in skeletally mature patients. The IdentiTi NanoTec ALIF Standalone Interbody System implants of ≤20° are a standalone system. The IdentiTi NanoTec ALIF Standalone Interbody System implants of >20° must be used with supplemental spinal fixation systems cleared by the FDA for use in the lumbar spine in addition to the integrated screws.
The IdentiTi NanoTec ALIF Standalone Interbody System is intended for use at one or two contiguous levels in the lumbar spine (L2-S1) for the treatment of degenerative disc disease (DDD) with up to Grade I spondylolisthesis or retrolisthesis at the involved level(s). DDD is defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies. The IdentiTi NanoTec ALIF Standalone Interbody System is intended for use on patients who have had at least six months of non-operative treatment. It is intended for use with autograft and/or allograft comprised of cancellous and/or corticocancellous bone graft

The IdentiTi Cervical Standalone Interbody System is a stand-alone anterior cervical interbody fusion system intended for use as an adjunct to fusion at one or two contiguous levels (C2-T1) in skeletally mature patients for the treatment of degenerative disc disease (defined as discogenic neck pain with degeneration of the disc confirmed by history and radiographic studies). These patients should have received at least six weeks of non-overative treatment with the device. The IdentiTi Cervical Standalone Interbody System is to be used with autograft and/or allograft composed of cancellous and/or cortico-cancellous bone graft and implanted via an open, anterior approach. The IdentiTi Cervical Standalone Interbody System is intended to be used with the bone screw fixation provided and requires no additional fixation.

The IdentiTi Cervical Standalone Interbody System with advanced NanoTec surface treatment is a stand-alone anterior cervical interbody fusion system intended for use as an adjunct to fusion at one or two contiguous levels (C2-T1) in skeletally mature patients for the treatment of degenerative disc disease (defined as discogenic neck pain with degeneration of the disc confirmed by history and radiographic studies). These patients should have received at least six weeks of non-operative treatment prior to treatment with the device. The IdentiTi NanoTec Cervical Standalone Interbody System is to be used with autograft and/or allograft composed of cancellous and/or cortico-cancellous bone graft and implanted via an open, anterior approach. The IdentiTi NanoTec Cervical Standalone Interbody System is intended to be used with the bone screw fixation provided and requires no additional fixation.

The IdentiTi and Transcend Interbody Systems are cervical and thoracolumbar intervertebral body fusion systems designed to be inserted through anterior and posterior approaches. The interbody spacers are manufactured surgical from PEEK (polyetheretherketone) Optima LT1 per ASTM F2026, tantalum per ASTM F560, titanium alloy (Ti-6Al-4V ELI), and commercially pure titanium (CPTi Grade 2) per ASTM F67. The interbody spacers are available in the following material options: (1) PEEK (polyetheretherketone) with tantalum and titanium alloy markers, or (2) commercially pure porous titanium (PTi), or (3) a combination of commercially pure porous titanium (CP Ti Grade 2) per ASTM F67 and titanium alloy (Ti-6Al-4V ELI) per ASTM F136.
The subject IdentiTi and Transcend Interbody Systems implants consist of various lengths, widths, heights and lordotic options to accommodate individual patient anatomy. To mitigate risk of expulsion, the interbody endplates feature teeth. All interbody spacers feature an internal graft aperture for placement of graft material to promote fusion through the cage. Additionally, the IdentiTi implants are offered with a microstructure due to the layering of material that forms the porous architecture. This porous geometry extends to the superior and inferior surfaces of the device for implant fixation.
The IdentiTi and Transcend NanoTec Interbody Systems implant surfaces have been treated with a 20-40 nanometer thin hydroxyapatite (HA) surface treatment. The surface treatment presents nano-scale topography on the entirety of the implant surface, in addition to macro-/micro-scale topography existing from prior to treatment.
The IdentiTi ALIF and Cervical Standalone Interbody Systems accept two or three bone screws/bolts that are made of titanium alloy (Ti-6Al-4V ELI) per ASTM F136 in varying lengths and diameters.

This document is an FDA 510(k) Premarket Notification for various interbody fusion devices. It establishes substantial equivalence to previously cleared predicate devices, arguing that the new devices do not raise new questions of safety or effectiveness. As such, it does not contain acceptance criteria or a study that proves the device meets acceptance criteria in the context of an AI/ML algorithm's performance.

Instead, the document focuses on the mechanical and material properties of the interbody fusion implants. The "Performance Data" section explicitly states "Not applicable; determination of substantial equivalence is not based on an assessment of clinical performance data." and refers to mechanical testing on the predicate devices and Bacterial Endotoxin Testing (BET) for the subject devices.

Therefore, I cannot provide the requested information for an AI/ML study from this document. The information requested (acceptance criteria, sample size for test/training sets, expert qualifications, etc.) would only be relevant if the device involved an AI/ML component whose performance needed to be evaluated against clinical metrics, which is not the case here.

To re-iterate, this document is a 510(k) submission for spinal implants, not for an AI/ML-driven medical device.

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