Poster 133: Impact of Popliteal Artery Variation on Sports Medicine Surgery about the Knee

Objectives: Routine, non-contrast knee MRIs were used to assess the prevalence of popliteal artery branching variants. Distances from typical instrumentation in sports medicine operations aberrant anteiror tibial measured Methods: A retrospective series 236 consecutive obtained at a single academic center between March 2022 and May was compiled. Exclusion criteria included substantial artifact impairing interpretation imaging, lesion with mass effect on posterior structures, fracture significant displacement distal femur or plateau, meniscal injury meniscus. Popliteal classified as described by Kim et. al. Measurements using imaging software Sectra (Sectra, Linkoping, Sweden). The lateral meniscus axial plane level Points representing posterior-most aspects root horn selected these artery. HTO measurement performed plane. 3D rendering MRI created Sectra. then reoriented mimic oblique cut osteotomy. proximal extent osteotomy just fibular head roughly 1.5 cm plateau. point along cortex closest vessel during procedure long it medial most (1 cortex). distance this nearest its branch measured. Lastly tunnel posterolateral corner (PLC) reconstruction above head. set have radius 5mm approximate 10 mm graft tunnel. Statistics calculated Excel (Microsoft, Redmond, Washington). Results: 200 patients 222 obtained. average age 31.5 years, 51% male. 48% images right knee. 92/222 knees did not anterior within study, which presumed represent takeoff. There 8 (3.6%) type II variants off 7 (3.15%) IIA-2 popliteus. Amongst I arteries, 9.7 (+/-2.7) 15.7 (+/-3.0) mm, respectively. edge for PLC 14.5 (4.0) saw 7.9 (2.8) mm. For II-A2, values 7.7 11.1 (+/-3.6) 11.8 (+/-4.8) 0.6 (+/-0.3) Type II-A2 arteries signifcantly closer (p=0.015) high (p<0.01) when compared 1 vessels. (p=0.13) (p=0.19) Conclusions: Standard are sufficient identification patterns useful surgical planning around patient specific anatomy. One thirty our study had In particular, poster increased risk.This is especially important rise outpatient surgery centers, crucial understand patient-specific anatomy minimize risk vascular injury. [Table: see text][Table: text]