Pseudoaneurysm formation is a rare complication of knee arthroscopy. C
ases reported in the literature have involved the popliteal, superior
and inferior medial geniculate, and the inferior lateral,geniculate ar
teries. These cases have all been described as presenting within 2 to
3 weeks of the arthroscopic procedure. Described here are two unique c
ases, the first a delayed presentation and the second involving the re
current anterior tibial artery.