Anterior Cruciate Ligament (ACL) Reconstruction- Bioabsorbable Screw

This study will combine the use of survey response, MRI, and x-rays of the knees in Dr. Spindler's ACL reconstructed patients in order to examine long term healing of two types of bioabsorbable screw. We will use a 2-4 yr time point to look at patient reported symptoms of pain and swelling from the surveys and use the x-rays and MRIs to look at absorption of the screw, healing of the graft, and body reactions to the screw.

Inclusion criteria

• Age range: 12-35 years of age at the time of follow-up.
• Gender: Both.
• Minorities: All.
• Involved in sports at the time of injury.
• Participants must be at least two years past the date of ACL reconstruction surgery and not more than four years past the date of surgery
• Bioabsorbable Screws used during ACL reconstruction surgery

Exclusion criteria

• Age: <12 or >35 years of age
• Non-active or unable to participate for health reasons
• Simultaneous bilateral ACL reconstruction surgeries.
• If any of the following conditions exist in the ipsilateral knee:

• Revision ACL reconstruction
• Complex knee injury
• If any of the following conditions exist in the contralateral knee:

• ACL deficient
• Prior ACL reconstruction
• Prior surgery of any type
• Insufficient initial documentation
• Cannot be contacted by phone
• Neither Calaxo nor Milagro screw used at the time of ACL reconstruction