Given a passage with a context and an answer, construct a question on the basis of the information present in the passage. Construct the question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) it answer uses text phrases from the passage. Avoid creating questions that (i) can't be answered correctly without actually understanding the passage and (ii) uses the same words or phrases given in the passage.
Q: Context: The reconstruction of large facial bony defects using microvascular transplants requires extensive surgery to achieve full rehabilitation of form and function. The purpose of this study is to measure the agreement between virtual plans and the actual results of maxillofacial reconstruction.', 'This retrospective cohort study included 30 subjects receiving maxillofacial reconstruction with a preoperative virtual planning. Parameters including defect size, position, angle and volume of the transplanted segments were compared between the virtual plan and the real outcome using paired t test.', 'A total of 63 bone segments were transplanted. The mean differences between the virtual planning and the postoperative situation were for the defect sizes 1.17 mm (95 % confidence interval (CI) (-.21 to 2.56 mm); p=0.094), for the resection planes 1.69 mm (95 % CI (1.26-2.11); p=0.033) and 10.16 (95 % CI (8.36-11.96); p<0.001) and for the planes of the donor segments 10.81 (95 % CI (9.44-12.17); p<0.001) The orientation of the segments differed by 6.68 (95 % CI (5.7-7.66); p<0.001) from the virtual plan; the length of the segments differed by -0.12 mm (95 % CI (0.89-0.65 mm); not significant (n.s.)), respectively, while the volume differed by 73.3 % (95 % CI (69.4-77.6 %); p<0.001). The distance between the transplanted segments and the remaining bone was 1.49 mm (95 % CI (1.24-1.74); p<0.001) and between the segments 1.49 mm (95 % CI (1.16-1.81); p<0.001).
Answer: Virtual plans for mandibular and maxillofacial reconstruction can be realised with excellent match.
A:
Does virtual planning of complex head and neck reconstruction result in satisfactory match between real outcomes and virtual models?