PMID- 34399801 OWN - NLM STAT- MEDLINE DCOM- 20220112 LR - 20220112 IS - 1749-799X (Electronic) IS - 1749-799X (Linking) VI - 16 IP - 1 DP - 2021 Aug 16 TI - Femoral neck system versus inverted cannulated cancellous screw for the treatment of femoral neck fractures in adults: a preliminary comparative study. PG - 504 LID - 10.1186/s13018-021-02659-0 [doi] LID - 504 AB - BACKGROUND: The femoral neck system (FNS) may be a valid alternative for treating femoral neck fractures, but few studies have compared the outcomes between FNS and cannulated cancellous screws. This study aimed to compare the clinical efficacy and complications of FNS with those of inverted cannulated cancellous screws (ICCS) for the treatment of femoral neck fractures in adults. METHODS: This retrospective study evaluated patients with femoral neck fractures who underwent FNS or ICCS internal fixation between June 2019 and January 2020. The operative time, intraoperative blood loss, number of fluoroscopies, length of surgical incision, length of hospital stay, time to fracture healing, and other indicators were compared between the two groups. The incidence of complications such as nonunion, avascular necrosis of the femoral head, loosening of the internal fixation, and shortening of the femoral neck during follow-up was also assessed in both groups. RESULTS: Among the 92 patients included, 47 and 45 patients were categorized into the FNS and ICCS groups, respectively. Follow-up ranged from 14 to 24 months. There were no significant between-group differences in sex, age, side of the injured limb, and type of fracture and in operative time, intraoperative blood loss, incision length, and length of hospital stay (all P > 0.05). The incidence of complications such as fracture nonunion, avascular necrosis of the femoral head, and screw loosening was also comparable between the two groups. However, the number of fluoroscopies was significantly lower in the FNS group than in the ICCS group (P < 0.05). The fracture healing time was also significantly lower in the FNS group than in the ICCS group (P < 0.05). Furthermore, the femoral neck shortening and Harris hip score at the last follow-up were significantly better in the FNS group than in the ICCS group (P < 0.05). CONCLUSIONS: FNS for femoral neck fractures improves hip functional recovery and reduces the femoral neck shortening rate and fluoroscopy exposure postoperatively. Thus, FNS can be an alternative to ICCS for the treatment of femoral neck fractures. CI - (c) 2021. The Author(s). FAU - Tang, Yunfeng AU - Tang Y AD - Department of Orthopaedics, West China Hospital, West China School of Medicine, Sichuan University, No. 37, Wuhou Guoxue Road, 610041, Chengdu, Sichuan, People's Republic of China. FAU - Zhang, Zhen AU - Zhang Z AD - Department of Orthopaedics, West China Hospital, West China School of Medicine, Sichuan University, No. 37, Wuhou Guoxue Road, 610041, Chengdu, Sichuan, People's Republic of China. FAU - Wang, Limin AU - Wang L AD - Department of Orthopaedics, West China Hospital, West China School of Medicine, Sichuan University, No. 37, Wuhou Guoxue Road, 610041, Chengdu, Sichuan, People's Republic of China. FAU - Xiong, Wei AU - Xiong W AD - Department of Orthopaedics, West China Hospital, West China School of Medicine, Sichuan University, No. 37, Wuhou Guoxue Road, 610041, Chengdu, Sichuan, People's Republic of China. FAU - Fang, Qian AU - Fang Q AD - Department of Orthopaedics, West China Hospital, West China School of Medicine, Sichuan University, No. 37, Wuhou Guoxue Road, 610041, Chengdu, Sichuan, People's Republic of China. FAU - Wang, Guanglin AU - Wang G AD - Department of Orthopaedics, West China Hospital, West China School of Medicine, Sichuan University, No. 37, Wuhou Guoxue Road, 610041, Chengdu, Sichuan, People's Republic of China. wangglfrank@hotmail.com. LA - eng PT - Journal Article DEP - 20210816 PL - England TA - J Orthop Surg Res JT - Journal of orthopaedic surgery and research JID - 101265112 SB - IM MH - Adult MH - Blood Loss, Surgical MH - Bone Screws MH - *Femoral Neck Fractures/diagnostic imaging/surgery MH - *Femur Head Necrosis/diagnostic imaging/etiology/surgery MH - Femur Neck MH - Fracture Fixation, Internal/adverse effects MH - Humans MH - Retrospective Studies MH - *Surgical Wound MH - Treatment Outcome PMC - PMC8365927 OTO - NOTNLM OT - Femoral neck fracture OT - Femoral neck system OT - Inverted cannulated cancellous screws COIS- The authors declare that they have no competing interests. EDAT- 2021/08/18 06:00 MHDA- 2022/01/13 06:00 PMCR- 2021/08/16 CRDT- 2021/08/17 05:45 PHST- 2021/07/01 00:00 [received] PHST- 2021/08/09 00:00 [accepted] PHST- 2021/08/17 05:45 [entrez] PHST- 2021/08/18 06:00 [pubmed] PHST- 2022/01/13 06:00 [medline] PHST- 2021/08/16 00:00 [pmc-release] AID - 10.1186/s13018-021-02659-0 [pii] AID - 2659 [pii] AID - 10.1186/s13018-021-02659-0 [doi] PST - epublish SO - J Orthop Surg Res. 2021 Aug 16;16(1):504. doi: 10.1186/s13018-021-02659-0.