Reduced time to surgery improves patient-reported outcome after achilles tendon rupture

• Background: Patient outcome after an acute Achilles tendon rupture (ATR) continues to be suboptimal and heterogeneous. Thus, prognostic factors are called for to optimize evidence-based ATR treatment protocols, however, the influence of delayed time from injury to surgery (TTS) on patient outcome after ATR remains largely unknown. Purpose: To determine whether patient outcomes and adverse events after surgical repair of acute ATR are related to delayed TTS. Study Design: Cohort study; Level of evidence, 3. Methods: Two hundred and twenty-eight ATR patients treated with uniform anesthetic and surgical techniques, within 10 days after injury, were retrospectively assessed. TTS depended on a free slot in the operating theatre and neither surgeon nor patient could affect TTS. Patients were assigned into three groups according to trichotomized TTS; short- (<48hours), intermediate- (48-72hours) and long TTS (>72hours). Patient-reported outcome at one-year was assessed using the validated Achilles tendon Total Rupture Score, with scores>80 on a 0- to 100-point scale indicating an overall good outcome. The incidences of adverse events (peri- and postoperative) and deep venous thrombosis were assessed. Results: Shorter TTS was significantly associated with increased rate of good outcome and reduced risk of adverse events. Seventy-one percent (95% CI, 60%-83%) of the patients with short TTS attained a good outcome compared to 44% (95% CI, 33%-56%) of the patients 3 with long TTS (p=.002), and with the intermediate TTS group in between (63%, 95% CI, 47%-78%). The incidence of adverse events was significantly reduced among patients with short TTS 1.4% (95% CI, 1%-4%) as compared to those with intermediate TTS 11% (95% CI, 2%-21%) (p=.035) and to patients with long TTS 14.8% (95% CI, 7%-23%) (p=.003). The risk of sustaining a deep venous thrombosis was not statistically significant different among the three groups (p=.15). Conclusion: Patients with acute ATR operated on within 48 hours after injury yielded better outcomes and a lower number of adverse events compared to patients operated on after 72 hours. These results conform to evidence-based recommendations from other surgical disciplines and should be used as guidelines for optimizing ATR treatment protocols.

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