Direct application of MR images to computer-assisted bone tumor surgery

Cho, Hwan-Seong; Park, Il Hyung; Kim, Young Gun; Han, Ilkyu; Kim, Han‐Soo

doi:10.1007/s00776-011-0035-5

Cited by 26 publications

(13 citation statements)

References 11 publications

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“…4 Furthermore, some anatomical landmarks may be included in the resection area, and therefore pre-operative placement of K-wires for paired-point registration seems to be helpful. 4,6,7,9 Deciding where to place the K-wires or resorbable pins is crucial for precise registration. K-wires should be placed beyond the planned osteotomy site to avoid contamination by tumour, and a concentric arrangement of the wires around the region of interest is better than an arrangement shifted to one side, because if the fiducials are shifted there will be a larger error than the registration error shown by the navigation system.…”

Section: Discussionmentioning

confidence: 99%

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The outcomes of navigation-assisted bone tumour surgery

Cho

Han

et al. 2012

The Journal of Bone and Joint Surgery. British volume

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We evaluated the oncological and functional outcome of 18 patients, whose malignant bone tumours were excised with the assistance of navigation, and who were followed up for more than three years. There were 11 men and seven women, with a mean age of 31.8 years (10 to 57). There were ten operations on the pelvic ring and eight joint-preserving limb salvage procedures. The resection margins were free of tumour in all specimens. The tumours, which were stage IIB in all patients, included osteosarcoma, high-grade chondrosarcoma, Ewing's sarcoma, malignant fibrous histiocytoma of bone, and adamantinoma. The overall three-year survival rate of the 18 patients was 88.9% (95% confidence interval (CI) 75.4 to 100). The three-year survival rate of the patients with pelvic malignancy was 80.0% (95% CI 55.3 to 100), and of the patients with metaphyseal malignancy was 100%. The event-free survival was 66.7% (95% CI 44.9 to 88.5). Local recurrence occurred in two patients, both of whom had a pelvic malignancy. The mean Musculoskeletal Tumor Society functional score was 26.9 points at a mean follow-up of 48.2 months (22 to 79). We suggest that navigation can be helpful during surgery for musculoskeletal tumours; it can maximise the accuracy of resection and minimise the unnecessary sacrifice of normal tissue by providing precise intra-operative three-dimensional radiological information.

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Section: Discussionmentioning

confidence: 99%

“…9 This technique eliminates the costs and radiation exposure from the pre-operative CT scan. Moreover, it can eliminate possible error during image-toimage registration (CT-MR image fusion).…”

Section: Methodsmentioning

confidence: 99%

The outcomes of navigation-assisted bone tumour surgery

Cho

Han

et al. 2012

The Journal of Bone and Joint Surgery. British volume

View full text Add to dashboard Cite

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“…Only one group has been successful using MRI data for their registrations, and this was performed with preoperatively implanted radio-opaque fiducial markers (FM), which can be found on both the patient and on imaging [12,13].…”

Section: Data Acquisitionmentioning

confidence: 99%

“…Kim concluded that the technique should be considered in epiphyseal or metaphyseal resections when PP matching landmarks might not be available due to possible tumor contamination. Cho et al (2011) expanded on the groups experience in a case series involving six patient with an average age of 25 (range 18-52). Low SRE of 0.98 mm (range 0.4-1.7 mm) and short navigation times of 20 min (range 15 to 25) were found [13].…”

Section: Ct Based Caos In Malignant Diseasementioning

confidence: 99%