Abstract：
OBJECTIVE: Rapid and effective reduction is difficult for minimally invasive plate osteosynthesis (MIPO) surgery. This study aims to introduce a bidirectional rapid reductor (BRR) designed to assist in the reduction during MIPO surgery for proximal humeral fractures (PHFs).
METHODS: This retrospective study was conducted between June 2021 and February 2022 in the Third Hospital of Hebei Medical University, involving patients diagnosed with PHFs. A detailed technical approach of BRR in MIPO surgery was described, and the patients\' outcomes based on postoperative radiographic results including x-ray postoperative follow-up, and clinical outcome parameters including visual analogue scale (VAS) and constant-Murley score at last follow-up were reported.
RESULTS: A total of 12 patients were included in this study, comprising three males and nine females, with an average age of 67.58 years. The mean operative time was 70.92 min (range 63-80 min). The mean blood loss was 102.27 mL (range 50-300 mL). The mean VAS and constant-Murley scores at final follow-up were 0.33 and 88, respectively. All patients had their fractures healed without secondary displacement at last follow-up. One patient experienced shoulder stiffness post-operation. There were no adverse events or complications following the use of this technique, such as acromion fracture, nerve or blood vessel injury.
CONCLUSIONS: The BRR can assist MIPO for good reduction of PHFs. However, the efficacy should be validated with a large-sample randomized controlled trial and longer follow-up.
METHODS: This retrospective study was conducted between June 2021 and February 2022 in the Third Hospital of Hebei Medical University, involving patients diagnosed with PHFs. A detailed technical approach of BRR in MIPO surgery was described, and the patients\' outcomes based on postoperative radiographic results including x-ray postoperative follow-up, and clinical outcome parameters including visual analogue scale (VAS) and constant-Murley score at last follow-up were reported.
RESULTS: A total of 12 patients were included in this study, comprising three males and nine females, with an average age of 67.58 years. The mean operative time was 70.92 min (range 63-80 min). The mean blood loss was 102.27 mL (range 50-300 mL). The mean VAS and constant-Murley scores at final follow-up were 0.33 and 88, respectively. All patients had their fractures healed without secondary displacement at last follow-up. One patient experienced shoulder stiffness post-operation. There were no adverse events or complications following the use of this technique, such as acromion fracture, nerve or blood vessel injury.
CONCLUSIONS: The BRR can assist MIPO for good reduction of PHFs. However, the efficacy should be validated with a large-sample randomized controlled trial and longer follow-up.
摘要：
目的：微创钢板接骨术（MIPO）手术难以快速有效地复位。这项研究旨在引入一种双向快速复位器（BRR），旨在在MIPO手术治疗肱骨近端骨折（PHF）期间帮助复位。
方法：本回顾性研究于2021年6月至2022年2月在河北医科大学第三医院进行。涉及诊断为PHFs的患者。描述了BRR在MIPO手术中的详细技术方法，和患者的结果基于术后X线检查结果，包括术后随访，并报告了末次随访时的临床结局参数，包括视觉模拟评分（VAS）和恒定Murley评分。
结果：本研究共纳入12例患者，包括三名男性和九名女性，平均年龄为67.58岁。平均手术时间为70.92分钟（范围63-80分钟）。平均失血量为102.27mL（范围50-300mL）。最终随访时的平均VAS和恒定Murley评分分别为0.33和88。所有患者在最后一次随访时骨折均愈合，无二次移位。一名患者在术后出现肩部僵硬。使用此技术后没有不良事件或并发症，比如肩峰骨折,神经或血管损伤。
结论：BRR可以帮助MIPO良好地减少PHF。然而,疗效应通过大样本随机对照试验和更长时间的随访来验证.
方法：本回顾性研究于2021年6月至2022年2月在河北医科大学第三医院进行。涉及诊断为PHFs的患者。描述了BRR在MIPO手术中的详细技术方法，和患者的结果基于术后X线检查结果，包括术后随访，并报告了末次随访时的临床结局参数，包括视觉模拟评分（VAS）和恒定Murley评分。
结果：本研究共纳入12例患者，包括三名男性和九名女性，平均年龄为67.58岁。平均手术时间为70.92分钟（范围63-80分钟）。平均失血量为102.27mL（范围50-300mL）。最终随访时的平均VAS和恒定Murley评分分别为0.33和88。所有患者在最后一次随访时骨折均愈合，无二次移位。一名患者在术后出现肩部僵硬。使用此技术后没有不良事件或并发症，比如肩峰骨折,神经或血管损伤。
结论：BRR可以帮助MIPO良好地减少PHF。然而,疗效应通过大样本随机对照试验和更长时间的随访来验证.
