Browsing by Author "Bransford, Richard"
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Item Open Access Treatment of Axis Body Fractures: A Systematic Review.(Clinical spine surgery, 2017-12) Kepler, Christopher K; Vaccaro, Alexander R; Fleischman, Andrew N; Traynelis, Vincent C; Patel, Alpesh A; Dekutoski, Mark B; Harrop, James; Wood, Kirkham B; Schroeder, Gregory D; Bransford, Richard; Aarabi, Bizhan; Okonkwo, David O; Arnold, Paul M; Fehlings, Michael G; Nassr, Ahmad; Shaffrey, Christopher; Yoon, S Tim; Kwon, BrianStudy design
Evidence-based systematic review.Objectives
To define the optimal treatment of fractures involving the C2 body, including those with concomitant injuries, based upon a systematic review of the literature.Summary of background data
Axis body fractures have customarily been treated nonoperatively, but there are some injuries that may require operative intervention. High-quality literature is sparse and there are few class I or class II studies to guide treatment decisions.Materials and methods
A literature search was conducted using PubMed (MEDLINE), Cochrane Central Register of Controlled Trials, and Scopus (EMBASE, MEDLINE, COMPENDEX). The quality of literature was rated according to a grading tool developed by the Center for Evidence-based Medicine. Operative and nonoperative treatment of axis body fractures were compared using fracture bony union as the primary outcome measure. As risk factors for nonunion were not consistently reported, cases were analyzed individually.Results
The literature search identified 62 studies, of which 10 were case reports which were excluded from the analysis. A total of 920 patients from 52 studies were included. The overall bony union rate for all axis body fractures was 91%. Although the majority of fractures were treated nonoperatively, there has been an increasing trend toward operative intervention for Benzel type III (transverse) axis body fractures. Nearly 76% of axis body fractures were classified as type III fractures, of which 88% united successfully. Nearly all Benzel type I and type II axis body fractures were successfully treated nonoperatively. The risk factors for nonunion included: a higher degree of subluxation, fracture displacement, comminution, concurrent injuries, delay in treatment, and older age.Conclusions
High rates for fracture union are reported in the literature for axis body fractures with nonoperative treatment. High-quality prospective studies are required to develop consensus as to which C2 body fractures require operative fixation.