Abstract:Background and Aims Secondary hyperparathyroidism (SHPT) is a common and difficult-to-treat complication of chronic kidney disease (CKD), significantly impairing patients' quality of life and prognosis. For patients who respond poorly to medical therapy, surgical intervention remains an effective treatment option. This study aimed to evaluate the clinical efficacy and safety of total parathyroidectomy with forearm autotransplantation (tPTX+AT) in the treatment of CKD-related SHPT.Methods A retrospective analysis was conducted on 40 patients with CKD complicated by SHPT who underwent tPTX+AT in Gaozhou People's Hospital between January 2020 and June 2023. Changes in intact parathyroid hormone (iPTH), serum phosphorus, calcium, alkaline phosphatase (ALP), and bone mineral density (BMD) were recorded preoperatively and at multiple postoperative time points. Postoperative symptom relief, complications, and follow-up outcomes were also analyzed.Results A total of 158 parathyroid glands were removed during surgery. Among the patients, 38 had four glands successfully excised, while two had only three glands removed. After operation, levels of iPTH, phosphorus, calcium, and ALP decreased significantly compared to preoperative values (all P<0.05), and BMD increased significantly at 3 months (P<0.05). Symptoms such as bone pain, pruritus, and restless leg syndrome improved markedly by 3 months postoperatively (all P<0.05). Hypocalcemia occurred in 34 cases (85.0%); one patient experienced transient recurrent laryngeal nerve injury and one had superior laryngeal nerve injury, both of which resolved after treatment. The two patients who had only three glands removed exhibited persistent SHPT postoperatively, with iPTH levels of 457 pg/mL and 609 pg/mL, respectively. Although their symptoms improved partially, the condition was medically controlled without the need for reoperation.Conclusion tPTX+AT can effectively correct mineral metabolism disorders and improve BMD and clinical symptoms in SHPT patients. The procedure achieves a high rate of complete gland resection and stable autograft function. Although postoperative hypocalcemia is common, overall complications are manageable. This surgical approach is safe and effective for the treatment of refractory SHPT.