Follow-up was routinely performed at 2, 6, and 12 weeks and at approximately 6 months postoperatively. Control CT was performed to check the outcome, as recommended and performed by several other researchers,18,19 and to close the treatment case for the responsible accident insurance company approximately 1 year postoperatively. In these CT scans, a section thickness of 1 mm or less was used. For reasons related or unrelated to the orbital trauma, a second CT scan of the face was performed in some patients within 2 to 3 years after the operation. The section thickness of these investigations ranged from 0.75 to 2.0 mm. The medical records were reviewed, with special focus on enophthalmos, diplopia, clinical signs of foreign-body reactions, and other complications. A side difference of at least 2 mm, measured by Hertel exophthalmometry, was considered to be enophthalmos. Ocular motility was evaluated by assessing 8 fields of gaze. One investigator19 analyzed the CT scans for accuracy of reconstruction, according to the scoring system of Ellis and Tan,18 using selected coronal sections of postoperative CT scans. A copy of the unaffected orbit was overlaid onto the reconstructed orbit. The stability after disintegration of the implant was assessed by analyzing the anterior, middle, and posterior parts of the defect (3 indicates ideal; 2, adequate; and 1, poor). For each reconstruction, the mean of the 3 analyses was obtained for further evaluation. For the analyses, results of the most recent clinical and radiologic examinations were used.