Abstract
Purpose
Surgical repair is the preferred method of treatment of acute Achilles ruptures in North America because, despite a higher risk of overall complications, it offers a reduced risk of re-rupture. However, more recent trials, particularly those using functional bracing with early range of motion (ROM) have challenged this statement. This meta-analysis aims to compare surgical to conservative treatment in respect to re-rupture, overall complications, return to work, calf circumference and functional outcomes, as well as to examine the effects of early ROM on re-rupture rate.
Method
Literature search, data extraction, and quality assessment were conducted by two independent reviewers. Publication bias was assessed using the Eggar and Begg tests. Heterogeneity was assessed using I2 tests. Fixed or random-effects models were used accordingly. Pooled results were expressed as risk ratios, risk differences, and weighted or standardized mean difference, as appropriate. Meta-regression was employed to identify heterogeneity causes. Sub-group analysis was performed to assess the effect of early ROM.
Results
Nine study fit inclusion criteria. If early ROM is employed, re-rupture rates were equal for surgical and non-surgical patients (RD 0.6% p=0.782). If functional treatment is not employed, the absolute risk reduction achieved by surgery was 8.8% (p=0.002). Surgery was associated with an absolute risk increase of 15.7% (p=0.026) for overall complications. Surgical patients returned to work 19.16 days sooner (p=0.0014). There was no statistically significant difference between the two treatments in terms of calf circumference (p=0.357), strength (p=0.806), or functional outcomes (p=0.226).
Conclusion
According our results, for centers using functional rehabilitation, conservative treatment should be preferred, as it results in similar re-rupture rates as surgical treatment, while offering the advantage of decreased overall complications. For centers that do not employ early ROM protocols, surgical repair can be considered as it decreases re-rupture risk.
