ABSTRACT
The authors have pioneered the field of computer-assisted surgery (CAS) and used preoperative planning, intraoperative navigation, and postoperative evaluation for secondary unilateral orbital reconstructions. Surgery for all patients was preplanned using a modified software tool. Intraoperative navigation was used during surgery. A noninvasive registration method, using a dental occlusal splint mounted with four markers, was utilised to correlate the virtual planning to the patient's intraoperative position. No control group was used. Radiological follow-up consisted of postoperative computed tomography (CT) scans for all patients. Preoperative radiological measurements were repeated on the postoperative CT scans, to assess volumetric changes and changes in globe projection on the affected side and assess similarity to the unaffected side. As the authors did not use a control group with traditional orbital reconstruction and/or did not superimpose the planned contours with the results they achieved, it was not possible to really evaluate the benefit of CAS.
