Retrospective CT Imaging of BioComposite Interference Screw With BTB

Retrospective CT Imaging of BioComposite Interference Screw in Patients Undergoing Anterior Cruciate Ligament Reconstruction With Bone-Patellar Tendon-Bone Graft

The purpose of this study is to examine the long-term appearance and resorption rate of biocomposite screws used during ACL reconstruction on X-ray and computed tomography (CT).

Inclusion Criteria:

• Ages 18-50
• Patients who underwent primary ACL reconstruction performed by one of the study investigators at least 5 years ago
• Isolated ACL tear
• Type of graft used was bone-patellar tendon-bone autograft
• Type of screw used to attach graft to the tibia and/or femur was a BioComposite interference screws (Arthrex, Inc.)
• No degenerative joint disease on preoperative X-rays (> 50% joint space loss, presence of osteophytes)

Exclusion Criteria:

• Revision ACL reconstructions
• Types of grafts other than bone-patellar tendon-bone autograft were used
• ACL tear with concomitant pathology
• Degenerative joint disease on preoperative X-ray (> 50% joint space loss, presence of osteophytes)
• Metal or other types of bioabsorbable screws other than BioComposite interference screws (Arthrex, Inc.) were used
• ACL reconstruction performed less than 5 years ago
• Pregnancy
• Greater than Grade 2 laxity of other ligaments
• No additional fixation