From the Guidelines
The recommended treatment for an ATFL avulsion fracture is conservative management, including functional support with a brace, and exercise therapy, as surgery should be reserved for patients with significant displacement or those who fail conservative treatment, as indicated by the most recent evidence 1. The treatment approach for ATFL avulsion fractures prioritizes conservative management to minimize morbidity, mortality, and improve quality of life.
- Conservative management includes functional support with a brace, which is preferred over immobilization, as it allows for protected weight-bearing and promotes ankle stability 1.
- Exercise therapy should be started as soon as possible to recover joint functionality, focusing on range of motion exercises, progressive strengthening, and proprioception training 1.
- Pain management may include NSAIDs, such as ibuprofen or naproxen, to reduce pain and swelling, but their use should be limited to 7-10 days 1.
- Surgical intervention may be necessary for larger avulsion fragments (>5mm) or those with significant displacement, typically involving fragment fixation or ligament repair, and is also considered if conservative treatment fails after 3 months 1. The rationale for this approach is based on the most recent evidence, which suggests that conservative treatment is effective in promoting healing and restoring ankle stability, while minimizing the risks associated with surgical intervention 1.
- The use of a brace or functional support is effective in preventing recurrent ankle sprains, and exercise therapy has been shown to have a significant preventive effect for recurrent ankle sprains 1.
- The treatment approach should be individualized, taking into account the patient's specific needs and preferences, and should aim to minimize work absenteeism and promote a supervised return to sports activities 1.
From the Research
Treatment Options for ATFL Avulsion Fracture
- The treatment for ATFL avulsion fracture can be either non-surgical or surgical, depending on the severity of the injury and the patient's overall health 2.
- Non-surgical treatment is often the first choice for acute injury of the ATFL, and it involves the "peace and love" principle, followed by personalized rehabilitation training programs 2.
- Surgical treatment, such as arthroscopic anatomical repair or anatomical reconstruction surgery, is considered if non-surgical treatment is not ideal or fails 2.
- Arthroscopic procedures have been shown to produce better outcomes than open procedures for ATFL avulsion fractures, with minimal invasion and acceptable long-term functional outcomes 3.
Arthroscopic vs. Open Treatment
- A study comparing arthroscopic and open treatment for ATFL avulsion fractures found that the arthroscopic group had significantly higher Karlsson Ankle Functional Score (KAFS) and Foot and Ankle Outcome Score (FAOS) than the open group 3.
- The study also found that there was no significant difference in the American Orthopedic Foot and Ankle Society (AOFAS) score, SF-36, or sport participation rate between the arthroscopic and open groups 3.
Diagnosis and Treatment Considerations
- Avulsion fractures of the lateral malleoli in ankle inversion injuries can be undetected on routine radiographs, and special oblique views may be necessary to reveal the correct origin of the fragment 4, 5.
- The outcome of functional treatment of avulsion fracture was found to be inferior to that of ligament injury, and the ATFL and CFL views can provide a more precise diagnosis but do not affect the outcome of the functional treatment 5.
- The incidence of anterior inferior ligament avulsion fractures in operatively treated ankle fractures is around 25.8%, and the type of avulsion fracture is correlated with the type of ankle fracture 6.