机构：[1]Department of Orthopedics, 920 Hospital of the Joint Logistic Support Force, 650032 Kunming, China [2]Department of Orthopedics, The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, 650032 Kunming, China外科片骨科云南省第一人民医院
Background Inferior pole fracture of the patella (IPFP) has small and comminuted fracture blocks that are hard to immobilize, and early mobilization may lead to loss of fracture reduction and immobilization failure. Therefore, a difficulty of treatment is to achieve rigid immobilization with early functional exercise. Here, a new treatment method of tension-free external immobilization is put forward. Methods The clinical data of 11 IPFP patients treated with tension-free external immobilization from May 2016 to June 2019 were retrospectively analyzed. There were six males and five females aged 39.0 +/- 12.8 years (range 18-53 years). IPFP was caused by traffic accidents in five cases and falls in six cases. All cases had unilateral closed injuries, including four in the left knee and seven in the right knee. The preoperative range of motion of the knee was 22.0 +/- 7.5 degrees (10-30 degrees). The time from injury to operation was 4.5 +/- 1.3 d (3-7 d). The operation-related indices were recorded, and the function of the affected knee was assessed by the Bostman score. Results All operations were successful. The operation time was 56.4 +/- 8.4 mi (45-70 min), the intraoperative blood loss was 54.1 +/- 14.6 mL (40-80 mL), and the length of hospital stay was 7.5 +/- 1.9 d (5-11 d). The mean follow-up time was 20.4 +/- 7.6 months (12-36 months), the duration of fracture healing was 8.9 +/- 1.5 weeks (7-12 weeks), and the removal time of the external immobilization device was 10.4 +/- 0.9 weeks (9-12 weeks). At the last follow-up, the range of motion had no significant difference between the affected knee (129.7 +/- 3.3 degrees, range 125-135 degrees) and the unaffected knee (130.8 +/- 3.8 degrees, range 126-137 degrees) (t = 0.718, p < 0.05). The Bostman score of the knee was 29.2 +/- 1.0 points (27-30 points), including 10 excellent cases (90.9%) and one good case (9.1%). Conclusion Tension-free external immobilization is a feasible treatment for IPFP. It can help with early functional exercise and achieve a satisfactory clinical effect.
基金：
Key Laboratory of Digital Orthopedics of Yunnan Province [202005AG070004]; Lv-Weijia Academician Workstation of Yunnan Province [202005AF150038]; Digital Orthopedic Innovation Team of Yunnan Province [202105AE160015]; Orthopedics and Exercise Rehabilitation Clinical Medical Research Center of Yunnan Province [202102AA310068]
第一作者机构：[1]Department of Orthopedics, 920 Hospital of the Joint Logistic Support Force, 650032 Kunming, China
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推荐引用方式(GB/T 7714)：
Pu Shaoquan,Chen Yanling,Liang Jinlong,et al.Treatment of inferior pole fracture of the patella with tension-free external immobilization[J].BMC SURGERY.2022,22(1):doi:10.1186/s12893-022-01790-x.
APA：
Pu, Shaoquan,Chen, Yanling,Liang, Jinlong,Xu, Yongqing&Zhao, Yonghui.(2022).Treatment of inferior pole fracture of the patella with tension-free external immobilization.BMC SURGERY,22,(1)
MLA：
Pu, Shaoquan,et al."Treatment of inferior pole fracture of the patella with tension-free external immobilization".BMC SURGERY 22..1(2022)
