Contents
Commentary
n MESSAGE FROM THE MEDICAL EDITOR
Our Expanding Universe 
Stuart M. Weinstein, MD
n FROM THE DESK OF THE PRESIDENT
Looking Back 
Jean-Jacques Abitbol, MD
Current Concepts
n INVITED REVIEW
Multi- and Interdisciplinary Intervention for Injured Workers with Chronic
Low Back Pain 
Robert J. Gatchel, PhD; Darrell Bruga, DC
n CURVE/COUNTERCURVE
ALIF or PLIF: Which Approach is Best for Fusion at L5-S1? 
Michael D. Daubs, MD, FACS; Norman B. Chutkan, MD; Jeffrey C. Wang, MD
n LITERATURE REVIEW
New from the Journals 
Paul M. Arnold, MD, FACS; Robert Gatchel, PhD; David Bagnall, MD
n ABSTRACT REVIEW
NASS Annual Meeting Abstracts 
Michael Schaufele, MD; Scott Boden, MD
Socioeconomics & Politics
n PRACTICE MANAGEMENT
Tips for Finding the Right Health Care Consultant 
Annette Grady, CPC, CPC-H
n CODING Q & A
What is the Correct Code for Disc Arthroplasty? 
Christopher Kauffman, MD
n REGULATORY POLICY
Rule Changes Proposed by CMS 
Charles Mick, MD
n ADVOCACY/LEGISLATIVE AFFAIRS/PAC
Wanted: Spine Advocates 
Tom Faciszewski, MD
NASS News 
Spine Journal Focus Issue Presents Breakthrough Research in Spine Biologics
TSJ Outstanding Paper Award Presented at NASS Meeting
Team Up with NASS in Supporting Spine Research
Congratulations to NASS Research Grant and Fellowship Winners
AAOS Seeks Historical Artifacts & More for 75th Anniversary
Top Ten Reasons to Renew NASS Membership!
NASS Spring Break 2006
World Spine III a Great Success
NASS Calendar
In Memoriam