Synthes Small Stature USS Technique Manual
  1. Manuals
  2. Brands
  3. Synthes Manuals
  4. Medical Equipment
  5. Small Stature USS
  6. Technique manual

Synthes Small Stature USS Technique Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Technique Guide
Small Stature USS.
profile hooks and screws for spinal
fixation.
Dual-opening, low
Instruments and implants
approved by the AO Foundation

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Small Stature USS and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Synthes Small Stature USS

Summary of Contents for Synthes Small Stature USS

  • Page 1 Small Stature USS. Dual-opening, low profile hooks and screws for spinal fixation. Technique Guide Instruments and implants approved by the AO Foundation...

  • Page 3: Table Of Contents

    Table of Contents Introduction Small Stature USS Indications Surgical Technique Preoperative Planning Place Hook Prepare Pedicle Insert Screw Contour Rod Construct Assembly Alternative Method of Construct Assembly Distraction and Compression Final Tightening Attach Transconnector Optional Techniques Product Information Implants Instruments Set list Image intensifier control...

  • Page 4: Small Stature Uss

    – Designed to correct scoliosis either by segmental correction or global derotation Biomechanical strength – Comparable to the Universal Spinal System Versatile linkage mechanism – Allows addition or removal of anchorage points to an assembled construct Synthes Spine Small Stature USS...

  • Page 5: Indications

    (T1–L5), or as an anterolateral fixation system (T8–L5). Pedicle screw fixation is limited to skeletally mature patients with the exception of the Small Stature USS. These devices are indicated for all of the following indications regardless of the intended use: degenerative disc disease (defined as disco-...

  • Page 6: Preoperative Planning

    Replace “X” with a “2” for Stainless Steel or “4” for Titanium. Illustrations not shown actual size. © SYNTHES Spine 2000 Original Instruments and Implants of the Association for the Study of Internal Fixation–AO/ASIF SYNTHES and ASIF are registered trademarks of SYNTHES (USA) and SYNTHES AG Chur. Prepare lamina Instrument 388.521...

  • Page 7: Place Hook

    Place the hook in the desired location. The hook positioner may also be used to facilitate placement of the hook. After the hook is properly seated, remove the handle. The “hex stick” can remain attached to the hook. Synthes Spine...
  • Page 8 Place remaining hooks Repeat Steps 2– 4 to place hooks at each hook site, as deter- mined in the preoperative plan. Synthes Spine Small Stature USS...

  • Page 9: Prepare Pedicle

    Pedicle Probe, for 4.2 mm screws 388.545 Straight Ball Tip Probe 388.546 Curved Ball Tip Probe 388.55 388.551 Awl, for 4.2 mm screws Use the awl or awl for 4.2 mm screws to perforate the posterior cortex of the pedicle. Synthes Spine...
  • Page 10 40 mm, 50 mm, 60 mm and 70 mm. Position all screws approximately 50–80% into the vertebral body.* * M.E. Müller, M. Allgöwer, R. Schneider, H. Willenegger, Manual of Internal Fixation, 3rd Edition (Berlin: Springer-Verlag, 1991): p. 668. Synthes Spine Small Stature USS...

  • Page 11: Insert Screw

    Important: Care should be taken to align the screws along the same longitudinal axis to facilitate rod placement. This may require adjusting the screws so that they are all at ap- proximately the same height. Synthes Spine...

  • Page 12: Contour Rod

    Cut rod if necessary Instrument 388.72* Rod Cutter Adjust the rod length using the rod cutter. All rod cutting should take place outside the operative field. *Also available Synthes Spine Small Stature USS...
  • Page 13 Rod Bender, with bend radius adjustment Contour the rod to match the rod template, using the rod bender or the bending irons (Figure 1 or Figure 2). Figure 1 Match contour of rod to template (Figure 3). Figure 2 Figure 3 Synthes Spine...

  • Page 14: Construct Assembly

    If light impaction of the collar is necessary for final seating, remove the collar positioner and use the impactor with a small mallet. Place a 12-point nut over the construct and tighten, using the socket wrench. Synthes Spine Small Stature USS...

  • Page 15: Alternative Method Of Construct Assembly

    Place the distraction clip over the “hex stick.” Use the dis- traction forceps against the distraction clip while squeezing the rod introduction pliers until the rod is seated into the hook or screw. Synthes Spine...
  • Page 16 Once the collar is pushed down over the implant, remove the distraction clip (if necessary) and the rod introduction pliers. Place a 12-point nut over the construct and tighten with the socket wrench (Figure 2). Figure 1 Figure 2 Synthes Spine Small Stature USS...

  • Page 17: Distraction And Compression

    For compression, use the compression forceps for 5.0 mm rods. Make sure all nuts are loose before compressing against the point of fixation. Once in the desired position, tighten the nut using a socket wrench. Synthes Spine...

  • Page 18: Final Tightening

    Hold the screwdriver stationary and turn the torque limiting wrench clockwise to secure the nut. The torque limiting wrench will “click” at the preset torque of 10 Nm. No additional tightening is required after the first “click.” Synthes Spine Small Stature USS...
  • Page 19 “hex stick”. Hold the 5 mm socket wrench stationary and turn the torque limiting wrench clockwise to secure the nut. The torque limiting wrench will “click” at the preset torque of 10 Nm. There is no additional tightening required after the first “click.” Synthes Spine...

  • Page 20: Attach Transconnector

    Note: If any part of the construct requires further adjust- ment, all transconnector setscrews must be loosened. After final adjustment, retighten the setscrews. Synthes Spine Small Stature USS...

  • Page 21: Optional Techniques

    Use the rod crimping pliers or rod pusher, if necessary. Use a collar with grooves and a 12-point nut to secure the bar to the hook or screw. Secure the bar to the rod by tight- ening the setscrew firmly. Synthes Spine...
  • Page 22 Drive the tips through the cortical bone and seat the staple using the Impactor and a small mallet. Insert the screws through the staples or washers. Use the other implants (rod, collars, nuts) to complete the construct. Synthes Spine Small Stature USS...
  • Page 23 – Multiple designs for use around the lamina, pedicle or transverse process – Specialized lamina hooks for thoracic and lumbar applications Lamina Hook – Low-profile design to minimize soft tissue interactions in pediatric and small-statured patients Angled Lamina Hook Thoracic Lamina Hook Pedicle Hook Transverse Process Hook Synthes Spine...
  • Page 24 – Used with screws and front-opening hooks – Available in lengths of 15 mm, 20 mm and 25 mm – Eliminate the need for severe rod contouring, which might otherwise be required for direct hook/screw-to-rod connection Synthes Spine Small Stature USS...
  • Page 25 5.0 mm/5.0 mm 5.0 mm/6.0 mm 3.5 mm/5.0 mm – The 3.5 mm/5.0 mm connector* permits attachment of the Small Stature USS System to the CerviFix System Staples and washers – Provide secure anchorage for anterolateral constructs in the thoracolumbar spine –...
  • Page 26 12-point nut 388.142 Socket Wrench with Straight Handle, 5 mm width across flats 388.152 Socket Wrench with Straight Handle, for 12-point nut 388.153 Collar Positioner 388.266 10 Nm Torque Limiting Wrench, for 12-point nut Synthes Spine Small Stature USS...
  • Page 27 Long Small Hexagonal Screwdriver 388.335 4.0 mm Hexagonal Screwdriver 388.337 4.0 mm Hexagonal Screwdriver Shaft 388.36 Holding Sleeve, for long small hexagonal screwdriver 388.38 Holding Sleeve, for screwdriver for side-opening implants 388.413 Distraction Forceps, for 5.0 mm rods Synthes Spine...
  • Page 28 Instruments continued 388.424 Compression Forceps, for 5.0 mm rods 388.441 Rod Holding Forceps, for 5.0 mm rods 388.49 Rod Crimping Pliers, for side-opening implants 388.506 Rod Introduction Pliers, for dual-opening implants Synthes Spine Small Stature USS...
  • Page 29 388.511 Pedicle Finder, for dual-opening hooks 388.521 Lamina Finder, for dual-opening implants 388.522 Hook Holding Forceps, for dual-opening implants 388.54 Probe 388.544 Pedicle Probe, for 4.2 mm screws 388.545 Straight Ball Tip Probe 388.546 Curved Ball Tip Probe Synthes Spine...
  • Page 30 Awl, for 4.2 mm screws 388.606 Distraction Clip, for hook/screw holder with 4.0 mm hex 388.612 Hook/Screw Holder, with 4.0 mm hex 388.622 Handle, for hook/screw holder with 4.0 mm hex 388.631 Hook Positioner, for dual-opening implants 388.755 Impactor Synthes Spine Small Stature USS...
  • Page 31 Transconnector for 5.0 mm rods Coated Rod Templates, for 5.0 mm rods 388.906 150 mm 388.907 500 mm Bending Irons for 5.0 mm rods 388.911 left 388.922 right 388.941 Rod Pusher, for 5.0 mm rods 388.961 Rod Bender, with bend radius adjustment Synthes Spine...
  • Page 32 Small Stature USS Instrument Set (105.123) Graphic Cases 690.023 Hook and Screw Instrument Graphic Case 690.024 Rod Instrument Graphic Case Instruments 388.132 Socket Wrench with T-Handle, for 12-point nut 388.142 Socket Wrench with Straight Handle, 5 mm width across flats 388.152...
  • Page 33 Coated Rod Template, 500 mm, for 5.0 mm rods, 2 ea. 388.911 Bending Iron, left, for 5.0 mm rods 388.922 Bending Iron, right, for 5.0 mm rods 388.941 Rod Pusher, for 5.0 mm rods 388.961 Rod Bender, with bend radius adjustment Synthes Spine...
  • Page 34 Small Stature USS Implant Sets Stainless Steel (105.122) and Titanium (145.122) Graphic Cases 690.021 Hook and Rod Implant Graphic Case 690.022 Screw Implant Graphic Case Implants Dual-Opening Hooks Stainless Steel Titanium Description Qty. 298.308 498.308 Small Lamina Hook, side 298.309 498.309...
  • Page 35 15 mm 298.228 498.228 20 mm 298.229 498.229 25 mm 5.0 mm Hard Rods Stainless Steel Titanium Length 298.236 498.236 150 mm 298.237 498.237 200 mm 298.239 498.239 300 mm 298.241 498.241 400 mm 298.243 498.243 500 mm Synthes Spine...
  • Page 36 Small Stature USS Implant Sets Stainless Steel (105.122) and Titanium (145.122) continued Implants continued Dual-Opening Screws Stainless Steel Titanium Diameter Length Qty. 298.401 498.401 4.2 mm 25 mm 298.402 498.402 4.2 mm 28 mm 298.403 498.403 4.2 mm 30 mm 298.404...
  • Page 37 5.0 mm Dual-Opening Screw Rack 690.022.70 6.0 mm Dual-Opening Screw Rack 690.022.80 7.0 mm Dual-Opening Screw Rack Small Stature USS Instrument and Implant Sets 105.121 Consists of sets 105.123 and 105.122 (with stainless steel implants) 145.121 Consists of sets 105.123 and 145.122 (with titanium implants) 388.72...
  • Page 40 To order: (800) 523-0322 To order: (800) 668-1119 Fax: (610) 251-9056 Fax: (905) 567-3185 www.synthes.com © 2000 Synthes, Inc. or its affiliates. All rights reserved. CerviFix, Click’X, Pangea and Synthes are trademarks of Synthes, Inc. or its affiliates. Printed in U.S.A. 7/08 J3087-E...

Table of Contents