Accuracy of Fibula Reconstruction Using Patient-Specific Cad/Cam Plates: A Multicenter Study on 47 Patients.

OBJECTIVES: This prospective study evaluated the accuracy of mandibular reconstruction using free fibular flaps (by comparing virtual plans to the three-dimensional postoperative results), and the extent of bone-to-bone contact after computer-assisted surgery. METHODS: We included 65 patients who underwent partial-continuity mandibular resections from February 2013 to January 2017, and evaluated virtual planning, surgical techniques, and accuracy. RESULTS: Forty-seven patients were analysed. A total of 112 fibular segments received 54 implants. We measured 227 distances between landmarks to assess the accuracy of reconstruction. Postoperative reconstruction accuracy ranged from 0.5 to 3 mm. CONCLUSION: Virtual surgical planning very accurately translated simulation into reality, particularly in patients requiring large, complex mandibular reconstructions using multiple fibular segments. LEVEL OF EVIDENCE: 4 Laryngoscope, 131:E2169-E2175, 2021.

Resection of costal exostosis using piezosurgery associated with uniportal video-assisted thoracoscopy.

We report a case of a 35-year-old woman affected by costal exostosis, originating from the posterior arc of the left fifth rib, who complained of a persistent intractable neuralgia in the left T5 dermatome. Both pain and the risk of visceral injury led us to resect exostosis. The procedure was performed using a uniportal videothoracoscopic approach without additional incisions. For bone resection, we used Piezosurgery, a soft tissue-sparing system based on ultrasound vibrations. Piezosurgery allowed the complete resection of exostosis without injuring the intercostal nerve and vessels. The histologic analysis confirmed the diagnosis of osteochondroma and showed no sign of malignancy. The patient was discharged 2 days after the operation. Considering the lack of symptoms, the low risk of degeneration, and the absence of recurrence at 12-month follow-up, the simple resection of exostosis without performing a more extensive rib resection was judged to be optimal.

Surgical treatment of differentiated thyroid carcinoma: a retrospective study.

A retrospective study was carried out to assessed reliability of the prognostic factors (histology, age, sex, and stage), and standard procedures for the surgical treatment of differentiated thyroid cancers (DTC). From the 144 DTC cases reviewed with follow-up ranging from 1 to 25 years (m = 6.33 years), total mortality for cancer was found to be 55% (8 patients), with a predictive positive value for recurrence of 95.4% and 91.8% at 12 and 24 months, respectively. Median survival was 8.8 years (range 1 to 25 years). The multivariate analysis showed that factors such as age > 45 years, histology of intermediate malignancy, size up to 1.5 cm, and presence of metastases, significantly worsened the prognosis, regardless of the intervention that was carried out. We suggest total thyroidectomy for the treatment of benign pathologies and confirmed or suspected cases of cancer. We reserve loboisthmectomy for the treatment of benign pathologies confined to one lobe or those with FNAB suggesting a follicular neoplasm.