Intercondylar Eminence Of The Tibia

Description

Intercondylar eminence (tibial spine) rises from the superior surface of the tibial plateau between the medial and lateral condylar articular facets. Two apices, the medial and lateral intercondylar tubercles, form a central ridge that sits medial to the lateral plateau and lateral to the medial plateau, with the intercondylar area extending anterior and posterior to the spine. From a superior knee perspective, the eminence occupies the midline of the proximal tibia, separating the concave weight-bearing surfaces and framing the intercondylar region where the meniscal horns anchor. Small but defining. These bony contours matter because they organize the attachment geography of the cruciate ligaments and guide knee stability: the anterior intercondylar area supports the ACL tibial footprint (anterior to the spine), while the posterior intercondylar area receives the PCL footprint (posterior to the spine), and both footprints lie adjacent to the anterior and posterior roots of the menisci. Tibial spine (intercondylar eminence) fractures, common in children and adolescents, can avulse the ACL insertion and are often classified on radiographs and CT by displacement relative to the plateau and tubercles. For arthroscopy and tibial tunnel placement in ACL reconstruction, the eminence serves as a hard landmark when orienting to the tibial plateau and avoiding meniscal root injury. Use this illustration in musculoskeletal anatomy teaching for the knee and proximal leg, in orthopaedic lectures on ACL/PCL anatomy and tibial spine avulsion, and in radiology or sports medicine materials correlating the tibial plateau with cruciate ligament insertions on plain film, CT, or MR. It also fits surgical atlases that describe tibial tunnel orientation and intercondylar notch landmarks from a tibial plateau reference. Anatomical accuracy verified by SciePro's Medical Advisory Board.