Intraarticular distal femoral unicondylar fractures are uncommon. Anatomical reduction is the point of the good result of the treatment. Non displaced or minimally displaced fractures can be treated nonoperatively, but must be followed closely for loss of reduction. Displaced unicondylar fractures require surgical fixation to prevent the complications of axial malalignment, post-traumatic arthritis, knee stiffness and instability frequently reported after nonoperative treatment. We present a case report discribing an alternative treatment method, namely, arthroscopic reduction and internal fixation (ARIF), of displaced intraarticular distal femoral unicondylar fractures. There are several potential benefits of less pain, fewer complications (bleeding, arthrofibrosis), quick recovery, better cosmesis and shorter hospital days.