Individualized Algorithm Lowers Achilles Rerupture Risk and Limits Unnecessary Surgery

The management of acute Achilles tendon rupture remains a point of clinical contention, requiring a balance between the risks of surgical complications and the potential for higher rerupture rates in non-operative protocols [1, 2]. While surgical repair is often intended to limit tendon elongation and mitigate calf muscle atrophy, evidence is mixed regarding whether it provides superior long-term functional recovery or gait dynamics compared to modern rehabilitation [2, 3, 4]. International treatment strategies remain highly variable, with decisions frequently guided by individual surgeon preference or basic gap measurements rather than validated, evidence-based algorithms [5]. Persistent issues such as disorganized fiber alignment and permanent changes in tendon structure continue to complicate the return-to-sport trajectory for many patients [4, 6]. To address this gap, a multicenter randomized controlled trial has evaluated the Copenhagen Achilles Rupture Treatment Algorithm (CARTA), a protocol that uses ultrasonographic criteria (diagnostic ultrasound to assess tendon overlap and elongation) to individualize treatment selection [1, 7]. By tailoring the intervention to specific injury characteristics, this algorithm aims to optimize patient outcomes and clarify the indications for surgical repair.