Comparable with the findings of the earlier study (Shahid et al.), the five kinds of the branching patterns of the genicular artery was found in 42 limbs.
A cadaveric study of the branching pattern and diameter of the genicular arteries: A focus on the middle genicular artery. J.
Representative image of the branches of the genicular artery. ILGA, inferior lateral genicular artery; IMGA, inferior medial genicular artery; MGA, middle genicular artery; SLGA, superior lateral genicular artery; SMGA, superior medial genicular artery.
The lateral inferior genicular artery courses adjacent to the peripheral border of the lateral meniscus , whereas the medial genicular arteries do not course so close to the medial meniscus.
When a patient of recurrent hemarthrosis of the knee is encountered, especially when such a patient has lateral-dominant osteoarthritis and/or torn lateral meniscus, it is highly probable that the origin of the bleeding is the branch of lateral inferior genicular artery that penetrates and supplies the lateral meniscus.