Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Aug 24;24(1):674.
doi: 10.1186/s12891-023-06805-z.

Prediction of hip joint function and analysis of risk factors for internal fixation failure after Femoral Neck System (FNS)

Yazhong Zhang #  1 , Xu Zhang #  2 , Chao Li  2 , Yan Lin  2 , Yongxiang Lv  2 , Shaolong Huang  2 , Bin Wang  2 , Yunqing Wang  2 , Ziqiang Zhu  3
Affiliations

Prediction of hip joint function and analysis of risk factors for internal fixation failure after Femoral Neck System (FNS)

Yazhong Zhang et al. BMC Musculoskelet Disord. .

Abstract

Objective: Analysis of the risk factors affecting hip function and complications after femoral neck system (FNS) surgery for femoral neck fractures is of great significance for improving the procedure's efficacy.

Methods: The data of patients with femoral neck fractures who underwent FNS surgery in our hospital between October 2019 and October 2020 were retrospectively analyzed. Age, gender, time from injury to operation, fracture classification, operation time, fracture reduction, and postoperative weight-bearing time information were set as potential factors that may affect the results. Hip Harris scores were performed at 12 months postoperatively, and postoperative complication data (e.g., femoral head necrosis, nonunion, and femoral neck shortness) were collected. The risk factors affecting hip function and complications after FNS surgery were predicted using linear and logistic regression analyses.

Results: A total of 69 cases of femoral neck fracture were included, with an average age of 56.09 ± 11.50 years. The linear analysis demonstrated that the age and fracture type of the patients were the risk factors affecting the Harris score of the hip joint after FNS surgery. Older patients with displaced femoral neck fractures had an inferior postoperative hip function. In addition, fracture type, reduction of the femoral neck, and postoperative weight-bearing significantly impacted postoperative complications. Displaced fractures, negative fixation, and premature weight-bearing (< 6 weeks) were risk factors for postoperative complications. The Harris score of patients with a shortened femoral neck in the included cases was not significantly different from that of patients without shortening (P = 0.25).

Conclusions: Advanced age and fracture type are important evaluation indicators of the Harris score after FNS internal fixation of femoral neck fractures in young patients. Fracture type, fracture reduction, and postoperative weight-bearing time are risk factors for complications after FNS.

Keywords: Femoral Neck System; Femoral neck fractures; Hip joint function; Internal fixation failure; Shortened femoral neck.

PubMed Disclaimer

Conflict of interest statement

The authors declare no competing interests.

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
A and B Hip joint frontal and axial X-rays treated with FNS
Fig. 2
Fig. 2
Graphical representation of the effect of age on the Harris score
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

References

    1. Bartels S, Kristensen TB, Gjertsen JE, Frihagen F, Rogmark C, Dolatowski FC, et al. Total hip arthroplasty leads to Better results after low-energy displaced femoral Neck fracture in patients aged 55 to 70 years: a Randomized Controlled Multicenter Trial comparing internal fixation and total hip arthroplasty. J Bone Joint Surg Am. 2022;104(15):1341–1351. doi: 10.2106/JBJS.21.01411. - DOI - PubMed
    1. Terhune EB, Polce EM, Williams JC. A Novel Fluoroscopic View for Improved Assessment of the safety of the Posterosuperior Screw in femoral Neck fracture fixation. J Bone Joint Surg Am. 2022;104(10):889–895. doi: 10.2106/JBJS.21.00959. - DOI - PubMed
    1. Zhang YZ, Lin Y, Li C, Yue XJ, Li GY, Wang B, et al. A comparative analysis of femoral Neck System and three cannulated screws fixation in the treatment of femoral Neck Fractures: a Six-Month Follow-Up. Orthop Surg. 2022;14(4):686–693. doi: 10.1111/os.13235. - DOI - PMC - PubMed
    1. Konarski W, Poboży T, Śliwczyński A, Kotela I, Krakowiak J, Hordowicz M, et al. Avascular necrosis of femoral head-overview and current state of the art. Int J Environ Res Public Health. 2022;19(12):7348. doi: 10.3390/ijerph19127348. - DOI - PMC - PubMed
    1. Biz C, Tagliapietra J, Zonta F, Belluzzi E, Bragazzi NL, Ruggieri P. Predictors of early failure of the cannulated screw system in patients, 65 years and older, with non-displaced femoral neck fractures. Aging Clin Exp Res. 2020;32(3):505–513. doi: 10.1007/s40520-019-01394-1. - DOI - PubMed