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When used as a pedicle screw fixation system in the non-cervical posterior spine in skeletally mature patients, the TSRH® System is indicated for one or more of the following: (1) degenerative disc disease (defined as back pain of discogenic origin with degeneration of the disc confirmed by patient history and radiographic studies), (2) degenerative spondylolisthesis with objective evidence of neurologic impairment, (3) fracture, (4) dislocation, (5) scoliosis, (6) kyphosis, (7) spinal turnor, and/or (8) failed previous fusion (pseudarthrosis).

In addition, when used as a pedicle screw fixation system, the TSRH® Spinal System is indicated for skeletally mature patients: (1) having severe spondylolisthesis (Grades 3 and 4) of the fifth lumbar-first sacral (L5-S1) joint; (2) who are receiving fusions using autogenous bone graft only; (3) who are having the device fixed or attached to the lumbar and sacral spine (L3 and below); and (4) who are having the device removed after the development of a solid fusion mass.

When used as a posterior, non-cervical, non-pedicle screw fixation system, the TSRH® Spinal System is intended for the following indications: (1) degenerative disc disease (as defined by back pain of discogenic origin with degeneration of the disc confirmed by patient history and radiographic studies), (2) spondylolisthesis, (3) fracture, (4) spinal deformities (i.e., scoliosis, kyphosis, and/or lordosis), (5) spinal stenosis, (6) pseudarthrosis, (7) turnor resection, and/or (8) unsuccessful previous attempts at spinal fusion.

For anterior use only the TSRF® Spinal System has the additional indications of: (1) spinal stenosis and/or, (2) spondylolysis.

The purpose of this 510(k) submission is to add previously cleared MSD SiLo® Spinal System components to the TSRH® Spinal System.

The TSRH® Spinal System is intended to help provide immobilization of spinal segments as an adjunct to fusion of the thoracic, lumbar, and/or sacral spine.

The TSRH® Spinal System consists of a variety of shapes and sizes of rods, hooks, screws, cross connectors, and connecting components. In addition, GDLH® rods, DYNALOK PLUS™ bolts, CD HORIZON® Low Profile MULTI-SPAN® CROSSLINK® Plates, GDLH® rod/bolt connectors, GDLH® Variable Angle T-Bolts, and GDLH® and CD HORIZON® set screws and locking screws may be used with the TSRH® Spinal System.

The TSRH® Spinal System implant components can be rigidly locked into a variety of configurations, with each construct being tailor-made for the individual case. The hooks are intended for posterior use only and the staples are for anterior use only. The TSRH-3D® connectors and TSRH-3D® screws are intended for posterior use only.

The TSRH® Spinal System components are fabricated from stainless steel. Alternatively, they may be fabricated from medical grade titanium alloy or medical grade titanium. The TSRH® Spinal System may be sold sterile or non-sterile.

The provided 510(k) summary for the TSRH® Spinal System does not contain information on acceptance criteria, a study proving device performance against such criteria, sample sizes for test or training sets, data provenance, expert ground truth establishment, adjudication methods, MRMC studies, or standalone algorithm performance.

This document is a premarket notification for a medical device which typically focuses on demonstrating substantial equivalence to a legally marketed predicate device, rather than presenting detailed clinical study results with acceptance criteria. The information provided is primarily about the device's description, indications for use, and a comparison to previously cleared devices.

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