Procedural intervention for arthrofibrosis after ACL reconstruction: trends over two decades

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Epidemiology

Background:

• Arthrofibrosis is a rare but serious complication following anterior cruciate ligament (ACL) reconstruction.
• It is characterized by significant post-operative joint stiffness and limited range of motion.
• Early identification and intervention are crucial for optimal patient outcomes.

Purpose of the Study:

• To determine the population-based incidence of arthrofibrosis after ACL injury and reconstruction.
• To identify specific risk factors associated with the development of arthrofibrosis.
• To evaluate the effectiveness of interventions for managing arthrofibrosis.

Main Methods:

• A historical cohort study was conducted using the Rochester Epidemiology Project (REP) in Olmsted County, Minnesota.
• The study identified 1841 individuals with new-onset, isolated ACL tears between 1990 and 2010.
• Incidence rates were calculated, and predictive factors including age, sex, and meniscal injury were analyzed.

Main Results:

• The incidence of arthrofibrosis requiring intervention was 1.7% in the ACL reconstruction cohort and 1.0% in the non-operative cohort.
• Female patients demonstrated a 2.5 times higher likelihood of developing arthrofibrosis compared to males.
• Preoperative range of motion improved significantly after surgical intervention.

Conclusions:

• Arthrofibrosis is an uncommon but significant complication after ACL reconstruction, with approximately 2% of patients requiring intervention for stiffness.
• Female sex is identified as a significant risk factor for developing arthrofibrosis.
• Interventions for post-operative motion complications following ACL injury are generally effective in preventing permanent arthrofibrosis.