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<p>To prospectively compare the efficacy and safety of supine versus prone percutaneous nephrolithotomy (PNL) techniques in obese patients. This prospective randomized study included 73 obese patients (BMI &gt; 25) undergoing PNL between June 26, 2024 and June 1, 2025. Patients were assigned to supine (<i>n</i> = 36) or prone (<i>n</i> = 37) groups. Demographic data, stone characteristics, operative parameters, and complications were analyzed. Statistical analyses were performed using SPSS v26, with significance set at <i>p</i> &lt; 0.05. No significant differences were found between the groups in terms of age, BMI, stone size, or hospital stay (<i>p</i> &gt; 0.05). The supine group demonstrated significantly shorter operative time (79.9 ± 17.9 vs. 97.7 ± 16.2&#xa0;min, <i>p</i> &lt; 0.001) and access tract length (4.8 ± 0.7 vs. 6.2 ± 0.8&#xa0;cm, <i>p</i> &lt; 0.001). Stone-free rates, DJ stent placement, transfusion requirements, and complication rates (Clavien-Dindo classification) were comparable between the groups (<i>p</i> &gt; 0.05). Both supine and prone PNL are safe and effective options for obese patients with renal stones ≥ 2&#xa0;cm. However, supine PNL provides advantages including shorter operative time, reduced access tract length, and avoidance of patient repositioning, making it a preferable approach for this patient population.</p>

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A prospective comparison of supine and prone percutaneous nephrolithotomy techniques in obese patients

  • 期刊论文

  • 发表日期：

    2026年1月16日

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  • Recep Eryılmaz,
  • Rahmi Aslan,
  • Muhammed Fatih Keleş,
  • Murat Demir,
  • Kerem Taken

摘要

To prospectively compare the efficacy and safety of supine versus prone percutaneous nephrolithotomy (PNL) techniques in obese patients. This prospective randomized study included 73 obese patients (BMI > 25) undergoing PNL between June 26, 2024 and June 1, 2025. Patients were assigned to supine (n = 36) or prone (n = 37) groups. Demographic data, stone characteristics, operative parameters, and complications were analyzed. Statistical analyses were performed using SPSS v26, with significance set at p < 0.05. No significant differences were found between the groups in terms of age, BMI, stone size, or hospital stay (p > 0.05). The supine group demonstrated significantly shorter operative time (79.9 ± 17.9 vs. 97.7 ± 16.2 min, p < 0.001) and access tract length (4.8 ± 0.7 vs. 6.2 ± 0.8 cm, p < 0.001). Stone-free rates, DJ stent placement, transfusion requirements, and complication rates (Clavien-Dindo classification) were comparable between the groups (p > 0.05). Both supine and prone PNL are safe and effective options for obese patients with renal stones ≥ 2 cm. However, supine PNL provides advantages including shorter operative time, reduced access tract length, and avoidance of patient repositioning, making it a preferable approach for this patient population.