Tags

Type your tag names separated by a space and hit enter

Prosthetically guided maxillofacial surgery: evaluation of the accuracy of a surgical guide and custom-made bone plate in oncology patients after mandibular reconstruction.
Plast Reconstr Surg. 2013 Jun; 131(6):1376-1385.PR

Abstract

BACKGROUND

The aim of the present study was to evaluate the accuracy of prosthetically guided maxillofacial surgery in reconstructing the mandible with a free vascularized flap using custom-made bone plates and a surgical guide to cut the mandible and fibula.

METHODS

The surgical protocol was applied in a study group of seven consecutive mandibular-reconstructed patients who were compared with a control group treated using the standard preplating technique on stereolithographic models (indirect computer-aided design/computer-aided manufacturing method). The precision of both surgical techniques (prosthetically guided maxillofacial surgery and indirect computer-aided design/computer-aided manufacturing procedure) was evaluated by comparing preoperative and postoperative computed tomographic data and assessment of specific landmarks.

RESULTS

With regard to midline deviation, no significant difference was documented between the test and control groups. With regard to mandibular angle shift, only one left angle shift on the lateral plane showed a statistically significant difference between the groups. With regard to angular deviation of the body axis, the data showed a significant difference in the arch deviation. All patients in the control group registered greater than 8 degrees of deviation, determining a facial contracture of the external profile at the lower margin of the mandible. With regard to condylar position, the postoperative condylar position was better in the test group than in the control group, although no significant difference was detected.

CONCLUSIONS

The new protocol for mandibular reconstruction using computer-aided design/computer-aided manufacturing prosthetically guided maxillofacial surgery to construct custom-made guides and plates may represent a viable method of reproducing the patient's anatomical contour, giving the surgeon better procedural control and reducing procedure time.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, III.

Authors+Show Affiliations

Bologna, Italy From the Faculty of Medicine and Section of Prosthodontics, Department of Oral Science, Alma Mater Studiorum University of Bologna; and the Plastic Surgery Unit, S. Orsola-Malpighi Hospital.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

23714798

Citation

Mazzoni, Simona, et al. "Prosthetically Guided Maxillofacial Surgery: Evaluation of the Accuracy of a Surgical Guide and Custom-made Bone Plate in Oncology Patients After Mandibular Reconstruction." Plastic and Reconstructive Surgery, vol. 131, no. 6, 2013, pp. 1376-1385.
Mazzoni S, Marchetti C, Sgarzani R, et al. Prosthetically guided maxillofacial surgery: evaluation of the accuracy of a surgical guide and custom-made bone plate in oncology patients after mandibular reconstruction. Plast Reconstr Surg. 2013;131(6):1376-1385.
Mazzoni, S., Marchetti, C., Sgarzani, R., Cipriani, R., Scotti, R., & Ciocca, L. (2013). Prosthetically guided maxillofacial surgery: evaluation of the accuracy of a surgical guide and custom-made bone plate in oncology patients after mandibular reconstruction. Plastic and Reconstructive Surgery, 131(6), 1376-1385. https://doi.org/10.1097/PRS.0b013e31828bd6b0
Mazzoni S, et al. Prosthetically Guided Maxillofacial Surgery: Evaluation of the Accuracy of a Surgical Guide and Custom-made Bone Plate in Oncology Patients After Mandibular Reconstruction. Plast Reconstr Surg. 2013;131(6):1376-1385. PubMed PMID: 23714798.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Prosthetically guided maxillofacial surgery: evaluation of the accuracy of a surgical guide and custom-made bone plate in oncology patients after mandibular reconstruction. AU - Mazzoni,Simona, AU - Marchetti,Claudio, AU - Sgarzani,Rossella, AU - Cipriani,Riccardo, AU - Scotti,Roberto, AU - Ciocca,Leonardo, PY - 2013/5/30/entrez PY - 2013/5/30/pubmed PY - 2013/8/3/medline SP - 1376 EP - 1385 JF - Plastic and reconstructive surgery JO - Plast Reconstr Surg VL - 131 IS - 6 N2 - BACKGROUND: The aim of the present study was to evaluate the accuracy of prosthetically guided maxillofacial surgery in reconstructing the mandible with a free vascularized flap using custom-made bone plates and a surgical guide to cut the mandible and fibula. METHODS: The surgical protocol was applied in a study group of seven consecutive mandibular-reconstructed patients who were compared with a control group treated using the standard preplating technique on stereolithographic models (indirect computer-aided design/computer-aided manufacturing method). The precision of both surgical techniques (prosthetically guided maxillofacial surgery and indirect computer-aided design/computer-aided manufacturing procedure) was evaluated by comparing preoperative and postoperative computed tomographic data and assessment of specific landmarks. RESULTS: With regard to midline deviation, no significant difference was documented between the test and control groups. With regard to mandibular angle shift, only one left angle shift on the lateral plane showed a statistically significant difference between the groups. With regard to angular deviation of the body axis, the data showed a significant difference in the arch deviation. All patients in the control group registered greater than 8 degrees of deviation, determining a facial contracture of the external profile at the lower margin of the mandible. With regard to condylar position, the postoperative condylar position was better in the test group than in the control group, although no significant difference was detected. CONCLUSIONS: The new protocol for mandibular reconstruction using computer-aided design/computer-aided manufacturing prosthetically guided maxillofacial surgery to construct custom-made guides and plates may represent a viable method of reproducing the patient's anatomical contour, giving the surgeon better procedural control and reducing procedure time. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III. SN - 1529-4242 UR - https://www.unboundmedicine.com/medline/citation/23714798/Prosthetically_guided_maxillofacial_surgery:_evaluation_of_the_accuracy_of_a_surgical_guide_and_custom_made_bone_plate_in_oncology_patients_after_mandibular_reconstruction_ L2 - https://Insights.ovid.com/pubmed?pmid=23714798 DB - PRIME DP - Unbound Medicine ER -