Navigation Links
Acumed introduces the Scapho-Lunate Inter Carpal (SLIC) Screw System

HILLSBORO, Ore., Jan. 14, 2014 /PRNewswire-iReach/ -- Acumed's new SLIC Screw System - a jointed screw and a targeting guide with accompanying instrumentation to place and insert the screw accurately - offers surgeons a new adjunct to the soft tissue (e.g. ligament) repair or reconstruction as it holds the bones reduced while soft tissue repair heals.


The SLIC Screw is designed to maintain the anatomical reduction (spacing) of the scaphoid and lunate while allowing some rotation between the carpals.  A radiolucent targeting guide is provided to aid in the initial reduction of the scaphoid and lunate and the placement of the screw in the central portion of these two carpals, affording the soft tissue repair the best opportunity for successful healing.  

Scapholunate instability occurs when the ligament connecting these two carpals and secondary stabilizing ligaments are damaged – torn or stretched beyond their normal capacity.

The damage to the ligaments allows abnormal rotation and motion (kinematics) of the scaphoid and lunate, which can lead to wrist pain and eventually arthritic changes in the wrist.  While the scaphoid and lunate bones themselves are not damaged, the rotation and gap between the two wrist bones increases, and this must be anatomically reduced in order to promote healing of the soft tissues and restore normal function.

The SLIC Screw differs from other approaches, such as K-wires and conventional screws, in two significant ways.  First, the SLIC Screw has a joint that allows rotation between the scaphoid and lunate.  

Second, the screw is designed to be removed in six to nine months, protecting the soft tissue repair and allowing more time for biological healing.  By contrast, K-wires are typically removed 8-12 weeks post-operatively and many conventional screws are removed by four months post-operatively.  

K-wires and conventional screws are removed early in order to allow more motion at the wrist and prevent stiffness.  However, they stick out of the patient's skin at the wrist during healing and among the problems K-wires can cause are infection, skin irritation, limited rotation of the wrist, and uncertainty of stability when the wires are removed.

"The new SLIC Screw System provides mechanical support while the soft tissue repair heals and matures," says orthopaedic surgeon William B. Geissler, M.D. "Prolonged stabilization of the involved carpal bones eliminates the potential complications of temporary Kirschner wire fixation."

SLIC Screw

The joint of the SLIC screw resides in the interval between the scaphoid and lunate and allows for an approximate 15 to 22 degree toggle angle range of rotation. The screws come in three sizes – 22mm, 25 mm and 28 mm -  with the length variation in the scaphoid portion of the screw.  The scaphoid portion of the screw varies in length in order to allow the surgeon to place the back end of the screw close to the scaphoid bone surface, easing removal of the screw in six to nine months or after biological healing of the soft tissue.  

SL Targeting Guide

The SL Targeting Guide sits on the outside of the wrist and accomplishes several crucial functions: with the use of a joystick clip and temporary K-wires, it enables the surgeon to reduce the scaphoid and lunate bones back into position.

It allows the user to locate the screw trajectory accurately using fluoroscopy, locking the guide wire (for the screw) in one plane of motion while adjusting and locking it in the second plane. Further, the Targeting Guide aids in accurately placing the guide wire centrally through the bones from the lateral view.  Once the guide wire is placed properly, the bones can then be drilled and the screw inserted.

The complete SLIC Screw System including the screw, targeting guide and accompanying instrumentation is provided to customers as all-inclusive two-part sterile procedure packs.  

The SLIC Screw was designed for Acumed by orthopaedic surgeon William B. Geissler, M.D.; the SL Targeting Guide was designed by orthopaedic surgeon Michael G. McNamara, M.D.  


About Acumed

Acumed is a global leader in developing innovative orthopaedic and medical solutions to improve patient care. Acumed has over two decades of experience in the orthopaedic industry with the mission of aiding the afflicted through the ingenuity of our minds, the labor of our hands and the compassion of our hearts. Founded in 1988, Acumed is headquartered in Hillsboro, Oregon, with offices and a distribution network around the world. For more information visit

Media Contact: Andrea Ashley, Acumed, 503.207.1422,

News distributed by PR Newswire iReach:

Copyright©2012 PR Newswire.
All rights reserved

Related medicine technology :

1. IRIDEX Introduces Non-Invasive MicroPulse™ Therapy for Glaucoma
2. Pernix Therapeutics Introduces Omeclamox-Pak®, First Product in Gastroenterology Portfolio
3. Richard Wolf Medical Instruments introduces groundbreaking 5514 Endocam Performance HD
4. Rochester Medical Introduces Magic3® Coude Tip Hydrophilic Intermittent Catheter
5. Velos, Inc. Introduces Mobile App for Oncology Adverse Events and Graft-Versus-Host Disease at 2012 ASCO Annual Meeting
6. IDEV Technologies Introduces SurePath™ Guidewires
7. ConvaTec Introduces Enhanced Flexi-Seal® SIGNAL® FMS
8. HealthONE® Introduces the Colorado Center for Robotic Surgery(SM)
9. PeriGen, Inc. Introduces New, Advanced Perinatal System at National Perinatal Nursing Convention
10. PharmaNet/i3 Introduces PharmaNet/i3 Strategic Resourcing
11. Zimmer Introduces First Porous Metal Interbody Implant for Lumbar Spine in the United States
Post Your Comments:
(Date:11/25/2015)... 25, 2015 On Tuesday, November 24, ... trial against Wright Medical Technology, Inc. for product ... metal-on-metal hip implant device, awarded $11 million in ... week trial and three days of deliberations, the ... was defectively designed and unreasonably dangerous, and that ...
(Date:11/25/2015)...  Trovagene, Inc. (NASDAQ: TROV ), a developer ... Officer Antonius Schuh, Ph.D., is scheduled to present a ... Jaffray Healthcare Conference. th Annual Piper ... in New York on Tuesday, ... will be available for one-on-one meetings during the conference. ...
(Date:11/25/2015)... , November 25, 2015 ... self-monitoring blood glucose devices was valued at $11,171.1 million ... a CAGR of 5.7% during 2015 - 2022. The ... and increasing prevalence of diabetes. In addition, the increase ... is also contributing to the growth of the market. ...
Breaking Medicine Technology:
(Date:11/25/2015)... ... November 26, 2015 , ... ... (AUC), European Union (EU), ANDI Pan African Centres of Excellence, and public R&D ... Nairobi (UNON) for the opening of the 5th African Network for Drugs and ...
(Date:11/25/2015)... ... November 25, 2015 , ... For the first time, Vitalalert is ... One Beat ” campaign. The partnership between the two groups began in 2014 with ... International’s cause. , MAP International was founded in 1954 and is an international Christian-based ...
(Date:11/25/2015)... ... 2015 , ... Lakeview Health, a Jacksonville-based drug and alcohol ... and show through pictures what a positive difference it makes. The social media ... hashtag #FacesOfGratitude on their Facebook, Twitter, and Instagram accounts. Short stories can ...
(Date:11/25/2015)... ... ... On November 25, 2015, officials of Narconon Arrowhead , the drug rehabilitation ... new cutting edge recovery program that has been 50 years in the making. ... with the purpose to free addicts from the symptoms and negative behaviors of addiction. ...
(Date:11/25/2015)... ... November 25, 2015 , ... The McHenry County law ... successful appellate decision obtained by Attorneys Francisco J. Botto and Alex C. Wimmer. Attorneys ... Workers’ Compensation Comm’n, 2015 IL App (2d) 130884WC. , According to court documents, Adcock ...
Breaking Medicine News(10 mins):