Low profile dual plating for mid-shaft clavicle fractures: a meta-analysis and systematic review of observational studies
Ingmar Florin Rompen1, Bryan Joost Marinus van de Wall1,2, Mark van Heijl3
1Department of Orthopaedic and Trauma Surgery, Lucerne Cantonal Hospital, Spitalstrasse, 6000, Lucerne, Switzerland.
Introduction:
Low profile dual plate fixation using two mini fragment plates (< 2.7 mm thickness) is a relatively new technique and alternative to single plating for treating midshaft clavicle fractures. To date, no meta-analysis has been performed comparing these two techniques. Therefore, a systematic review and meta-analysis of observational studies and randomized clinical trials was performed comparing single plating to low profile dual plating for midshaft clavicle fractures.
Methods:
PubMed/Medline/Embase/CENTRAL/CINAHL were searched for both randomized clinical trials (RCT) and observational studies comparing both treatments. Effect estimates were pooled across studies using random effects models. The primary outcome is overall complication rate and re-intervention rate. Secondary outcomes include healing, operation duration and functional scores.
Results:
Low profile dual plating has favourable outcomes regarding overall complication rate (8.1% vs. 22.5%, OR 0.3, 95% CI 0.2-0.7, I2 = 16%, p = 0.007) and re-intervention rate (6.1% vs. 16.1%, OR 0.3, 95% CI 0.1-0.9, I2 = 25%, p = 0.02). The largest contributing factor behind these differences was the high incidence of implant related complaints in the single plating group (4.7% vs. 11.6%, OR 0.4, 95% CI 0.2-0.9, I2 = 0%, p = 0.02). The use of low profile dual plating does not have a detrimental effect on healing with union being attained in 99% compared to 97.4% in the single plating group (OR 1.8, 95% CI 0.3-10.7, I = 0%, p = 0.5). Data on operating time and functional results is limited.
Conclusion:
This meta-analysis shows that dual plating low profile plates for midshaft clavicle fractures is a safe procedure attaining the same union rates seen in patients treated with single plating. In addition, it seems to have a lower overall complication and re-intervention rate, mostly driven by the lower incidence of implant related complaints. Low profile dual plating, however, is a fairly new technique and should be further explored in respect to more differentiated endpoints to test whether these first findings are valid.
Level Of Evidence:
III.
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