1. Computer-Navigated Bone Cutting in the Resection of a Pelvic Bone Tumor and Reconstruction with a Massive Bone Allograft by Pierre-Louis Docquier, Olivier Cartiaux, Laurent Paul, Christian Delloye, and Xavier Banse JBJS Essent Surg Tech Volume 1(2):e10 July 20, 2011 ©2011 by The Journal of Bone and Joint Surgery, Inc.

2. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

3. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

4. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

5. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

6. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

7. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

8. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

9. Large chondrosarcoma involving the left iliac bone (Enneking zones II and III). Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

10. The tumor is delineated on each slice of an MRI where it is visible. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

11. Exopelvic view (left image) and endopelvic view (right image) showing the selection of the cutting planes. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

12. Allograft selection with allograft CT-to-patient CT registration. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

13. The patient is placed in a lateral position and stabilized in place with rolled cloths. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

14. The dynamic reference basis is inserted into the iliac crest (long arrow). Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

15. The tumor iliac bone and allograft have been cut according to the same planes. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

16. The graft is inserted into the bone defect (Fig. 5-A), and the fit is checked. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

17. A total hip arthroplasty is performed with cement. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.

18. Radiograph made on the third postoperative day, showing the osseous reconstruction and the hip arthroplasty. Pierre-Louis Docquier et al. JBJS Essent Surg Tech 2011;1:e10 ©2011 by The Journal of Bone and Joint Surgery, Inc.