This study is a prospective randomized controlled clinical study. After the Achilles tendon rupture repaired , patients were randomly divided into 2 groups, and the rehabilitation protocol was traditional rehabilitation protocol and accelerated rehabilitation protocol under ultrasonic monitoring , respectively, to study the difference in efficacy between the groups.

This prospective randomized controlled clinical study is designed to compare the treatment outcomes of different rehabilitation protocols by dividing the patients into two groups-based on the traditional rehabilitation protocol and accelerated rehabilitation protocol under ultrasonic monitoring after a similar suture technique. The inclusion criteria are patients with an acute closed single-legged complete Achilles tendon rupture, and an age of 18 to 60 years. The exclusion criteria are patients with prior Achilles tendon rupture or other situations that affect their lower limb functions or tendon healing (e.g., autoimmune disease, diabetes mellitus, systemic corticosteroid treatment). Other exclusion criteria are an inability to complete our suture technique (e.g., the distance from the rupture site to the Achilles tendon insertion is less than 3.5 cm), or those without rehabilitation or follow-up outcomes. All patients will be treated surgically with the same suture technique.

Inclusion Criteria:

• acute closed single-legged complete Achilles tendon rupture .
• age of 18 to 60 years.

Exclusion Criteria:

• patients with prior Achilles tendon rupture or other situations that affected their lower limb functions or tendon healing (e.g., autoimmune disease, diabetes mellitus, systemic corticosteroid treatment).
• an inability to complete our suture technique (e.g., the distance from the rupture site to the Achilles tendon insertion was less than 3.5 cm) .
• those without rehabilitation or follow-up outcomes.