The value of internal oblique radiographs for posterolateral bone grafting of the tibia.

A 35 degrees internal oblique radiographic view of the tibia was used for the purpose of demonstrating posterolateral tibial bone grafts. This radiograph of the supine patient is made by internally rotating the affected leg 35 degrees obliquely toward the midline. This view eliminates superimposition of both the tibia and fibula on the graft. This method of radiographic evaluation has been found useful in visualization of graft margins intraoperatively and assessing bone graft incorporations in clinical follow-up evaluations. The authors recommend 35 degrees oblique views in preference to anteroposterior and lateral views for patients who have had posterolateral bone grafts of the tibia performed.