Paper 21: Anterior Displacement of Tibial Spine Fractures, Does Anatomic Reduction Matter?

Objectives: Operative treatment of displaced tibial spine fractures consists of suture or screw fixation to reduce the fragment in addition to restoring tension of the ACL. In some instances, the reduction is not anatomic, but it is unknown whether this impacts healing, range of motion, or laxity. The purpose of this study is to determine if residual displacement of the anterior portion of a tibial spine fragment affects the range of motion or laxity in post-operative and non-operatively treated tibial spine patients and to assess if anterior lip displacement (ALD) predicts complications in these patients. Methods: Data was gathered from an institutional review board-approved multicenter retrospective cohort of patients treated for tibial spine fractures between January 1, 2000, and January 31, 2019, at 10 institutions. Patients younger than 25 years of age with tibial spine fractures were included. Five-hundred seventy-eight patients were included in the cohort, excluding patients with missing data. Range of motion and ALD measurements were summarized and compared from pre-treatment to the patient’s final visit. ALD measurements were categorized into four groups: 0 to