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. 2021 Mar;10(3):1093–1103. doi: 10.21037/gs-21-121

Figure 2.

Figure 2

Hypocalcemia associated with surgical extent (A) and number of parathyroid preserved in situ and implantation (B). (A) TT plus anterior laryngeal and trachea LND only; (B) TT + unilateral tracheoesophageal groove LND; (C) TT + bilateral tracheoesophageal groove LND; (D) 1–2 parathyroid preservation in situ without parathyroid autotransplantation; (E) 1–2 parathyroid preservation in situ plus at least one parathyroid autotransplantation; (F) 3–4 parathyroid preservation in situ plus at least one parathyroid autotransplantation. TT, total thyroidectomy; LND, lymph node dissection.