Clinical outcomes and affecting factors of ipsilateral femoral neck and shaft fractures - Multination, multicenter analysis
- Authors
- Oh, Chang-Wug; Kim, Joon-Woo; Park, Ki Chul; Apivatthakakul, Theerachai; Luo, Cong-Feng; Wong, Merng Koon; Leung, Frankie; Kim, Ji Wan
- Issue Date
- May-2023
- Publisher
- ELSEVIER
- Citation
- JOURNAL OF ORTHOPAEDIC SCIENCE, v.28, no.3, pp.614 - 620
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF ORTHOPAEDIC SCIENCE
- Volume
- 28
- Number
- 3
- Start Page
- 614
- End Page
- 620
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/186198
- DOI
- 10.1016/j.jos.2021.12.021
- ISSN
- 0949-2658
- Abstract
- Background
This study aimed to evaluate the clinical outcomes of ipsilateral femoral neck and shaft fractures and identify the risk factors associated with missed diagnosis of femoral neck fractures and clinical outcomes of this fracture.
Methods
The ipsilateral femoral neck and shaft fractures from seven centers were retrospectively reviewed. Data on injury mechanism, fracture pattern, and fracture classification; surgical factors including fixation method; and timing of detection of femoral neck fracture were analyzed. The clinical outcomes, complications, and the incidence of avascular necrosis of the femoral head (AVNFH) were reviewed. Risk factors for missed femoral neck fracture and complications were analyzed.
Results
In total, 74 patients with an average age of 43.6 years were included. Of the femoral shaft fractures, 56.8% were type A, 21.6% were type B, and 21.6% were type C. Sixteen patients had an open fracture of the femoral shaft. Femoral neck fracture was initially missed in 27% patients and the timing of delayed diagnosis was at an average of 11.1 days after injury. For detecting femoral neck fractures, minimal displacement of the femoral neck fracture was a risk factor, whereas computed tomography (CT) was a protective factor. The incidence of AVNFH was 6.8% at an average of 36.8 months after injury. The AVNFH group had more displaced femoral neck fractures at the time of surgery, but there was no difference in the timing of diagnosis compared to non-AVNFH group. The femoral shaft showed considerable healing problems, with an average union time of 29.7 weeks and a 20.2% nonunion rate.
Conclusion
Ipsilateral femoral neck and shaft fractures had a high rate of missed diagnosis, especially in minimally displaced fractures; however, CT was a protective factor. AVNFH occurred in 6.8% and was related to femoral neck fracture displacement, but not delayed diagnosis. The femur nonunion rate was high, which warrants attention.
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