scholarly journals Computer-Assisted Planning and Patient-Specific Instruments for Bone Tumor Resection within the Pelvis: A Series of 11 Patients

Sarcoma ◽  
2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
François Gouin ◽  
Laurent Paul ◽  
Guillaume Anthony Odri ◽  
Olivier Cartiaux
Keyword(s):  
Computed Tomography ◽  
Bone Tumor ◽  
Tumor Resection ◽  
Pelvic Bone ◽  
Patient Specific ◽  
Computer Assisted ◽  
Minimal Distance ◽  
Location Accuracy ◽  
Patient Specific Instruments ◽  
Bone Tumor Resection

Pelvic bone tumor resection is challenging due to complex geometry, limited visibility, and restricted workspace. Accurate resection including a safe margin is required to decrease the risk of local recurrence. This clinical study reports 11 cases of pelvic bone tumor resected by using patient-specific instruments. Magnetic resonance imaging was used to delineate the tumor and computerized tomography to localize it in 3D. Resection planning consisted in desired cutting planes around the tumor including a safe margin. The instruments were designed to fit into unique position on the bony structure and to indicate the desired resection planes. Intraoperatively, instruments were positioned freehand by the surgeon and bone cutting was performed with an oscillating saw. Histopathological analysis of resected specimens showed tumor-free bone resection margins for all cases. Available postoperative computed tomography was registered to preoperative computed tomography to measure location accuracy (minimal distance between an achieved and desired cut planes) and errors on safe margin (minimal distance between the achieved cut planes and the tumor boundary). The location accuracy averaged 2.5 mm. Errors in safe margin averaged −0.8 mm. Instruments described in this study may improve bone tumor surgery within the pelvis by providing good cutting accuracy and clinically acceptable margins.

scholarly journals Margin quality and local recurrence with Patient specific instruments for bone tumor resection

10.29007/p23s ◽  
2018 ◽  
Author(s):  
Laurent Paul ◽  
Thomas Schubert ◽  
Robin Evrard ◽  
Pierre-Louis Docquier
Keyword(s):  
Local Recurrence ◽  
Bone Tumor ◽  
Tumor Resection ◽  
Patient Specific ◽  
Medical Outcomes ◽  
Surgical Time ◽  
Oncologic Surgery ◽  
Physical Support ◽  
Patient Specific Instruments ◽  
Bone Tumor Resection

Bone tumor resection and subsequent reconstruction remains challenging for the surgeon. Obtaining adequate margins is mandatory to decrease the risk of local recurrence. Improving surgical margins quality without excessive resection, reducing surgical time and increasing the quality of the reconstruction are the main goals of today’s research in bone tumor surgical management. With the outstanding improvements in imaging and computerized planning, it is now a standard. However, surgical accuracy is essential in orthopaedic oncologic surgery (Grimmer 2005).Patient specific instruments (PSI) may greatly improve the surgeon's ability to achieve the targeted resection. Thanks to its physical support, PSI can physically guide the blade yielding to a better control over the cutting process (Wong, 2014). Surgical time might significantly be reduced as well when compared to conventional method or navigated procedure. Finally, reconstruction may gain in rapidity and quality especially when allograft is the preferred solution as PSI can be designed as well for allograft cutting (Bellanova, 2013).Since 2011, PSI have systematically been used in our institution for bone tumor resection and when applicable allograft reconstruction. This paper reports the mid- to long-term medical outcomes on a large series.

scholarly journals The Accuracy of Three-Dimensional Planned Bone Tumor Resection Using Patient-Specific Instrument

2020 ◽  
Vol Volume 12 ◽  
pp. 6533-6540
Author(s):  
Daniel A Müller ◽  
Yannik Stutz ◽  
Lazaros Vlachopoulos ◽  
Mazda Farshad ◽  
Philipp Fürnstahl
Keyword(s):  
Bone Tumor ◽  
Tumor Resection ◽  
Three Dimensional ◽  
Patient Specific ◽  
Specific Instrument ◽  
Bone Tumor Resection

scholarly journals A computer-assisted navigation technique to perform bone tumor resection without dedicated software

2016 ◽  
Vol 21 (1) ◽  
pp. 166-171
Author(s):  
Carmine Zoccali ◽  
Christina M. Walter ◽  
Leonardo Favale ◽  
Alexander Di Francesco ◽  
Barbara Rossi
Keyword(s):  
Bone Tumor ◽  
Tumor Resection ◽  
Computer Assisted ◽  
Assisted Navigation ◽  
Bone Tumor Resection

Pelvic bone tumor resection: what a radiologist needs to know

2020 ◽  
Vol 49 (7) ◽  
pp. 1023-1036 ◽  
Author(s):  
Michael McColl ◽  
Laura M. Fayad ◽  
Carol Morris ◽  
Shivani Ahlawat
Keyword(s):  
Bone Tumor ◽  
Tumor Resection ◽  
Pelvic Bone ◽  
Bone Tumor Resection

scholarly journals What Is the Expected Learning Curve in Computer-assisted Navigation for Bone Tumor Resection?

2016 ◽  
Vol 475 (3) ◽  
pp. 668-675 ◽  
Author(s):  
Germán L. Farfalli ◽  
José I. Albergo ◽  
Lucas E. Ritacco ◽  
Miguel A. Ayerza ◽  
Federico E. Milano ◽  
...  
Keyword(s):  
Learning Curve ◽  
Bone Tumor ◽  
Tumor Resection ◽  
Computer Assisted ◽  
Assisted Navigation ◽  
Bone Tumor Resection

scholarly journals Assessment of Resection Margins in Bone Tumor Surgery

Sarcoma ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Corentin Malherbe ◽  
Bernard Crutzen ◽  
Jean Schrooyen ◽  
Giovanni Caruso ◽  
Frédéric Lecouvet ◽  
...  
Keyword(s):  
Bone Tumor ◽  
Tumor Resection ◽  
Pathological Examination ◽  
Patient Specific ◽  
Resection Margins ◽  
Limb Salvage Surgery ◽  
Tumor Surgery ◽  
Surgical Guide ◽  
Median Error ◽  
Bone Tumor Resection

Limb salvage surgery is now the preferred procedure for bone tumor surgery. To decrease the risk of local recurrence, it is crucial to obtain adequate resection margins. The obtained margins must be evaluated postoperatively because they influence what treatment is given subsequently when margins are not adequate (e.g., surgical revision and radiotherapy). The study aims to evaluate margin assessment of tumor specimen by MRI compared to conventional histology (to establish the viability of using MRI) and assess the accuracy of a patient-specific instrument when narrow margins were aimed. The resection margins in 12 consecutive patients that were operated on for bone tumor resection were prospectively analyzed using three methods: MRI of the resection specimen, macroscopic evaluation of specimen slices, and microscopic pathological evaluation. The assessments were qualitative (R0, R1, and R2) and quantitative (distance in mm). MRI, macroscopic, and microscopic margins generated similar results for both the qualitative (all resections were R0) and quantitative assessments. The median error in safe margins was 2 mm with a surgical guide (PSI) and 5 mm without a surgical guide. Local recurrences were not detected after a mean follow-up period of 3.7 years (range, 2.1–5 years); however, four patients died during the study. In conclusion, MRI is a valuable tool for assessing safe margins. When specimens are not available for pathological assessment (e.g., extracorporeally irradiated autograft or autoclaved autograft), MRI could be used to evaluate margins. In particular, when tumor volume is high, MRI could also help to focus the pathological examination on areas of concern.

scholarly journals The role of Intraoperative 3D navigation for pelvic bone tumor resection

2016 ◽  
Vol 102 (6) ◽  
pp. 807-811 ◽  
Author(s):  
M. Ould-Slimane ◽  
P. Thong ◽  
A. Perez ◽  
X. Roussignol ◽  
F.-H. Dujardin
Keyword(s):  
Bone Tumor ◽  
Tumor Resection ◽  
Pelvic Bone ◽  
3D Navigation ◽  
Bone Tumor Resection
Sign in / Sign up

Export Citation Format

Share Document