Evidence map›Paper›PMID 40803682›Full record

ArticleOrthopaedic surgery2025

A Retrospective Study on the Relationship Between Calcar Femorale Injury and Postoperative Complications of Femoral Neck Fracture in Young and Middle-Aged Patients Treated With Three Cannulated Screws.

Qi Liu, Kaijun Zhang, Bin Zhao, Haoyuan Du, Teng Zhang, Wei Han, Junqiang Wang

Abstract read
In one paragraph

Article in Orthopaedic surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. [Research progress in treatment of Garden typeZhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Qi LiuDepartment of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China.
Kaijun ZhangDepartment of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China.
Bin ZhaoDepartment of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China.
Haoyuan DuDepartment of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China.
Teng ZhangDepartment of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China.ORCID https://orcid.org/0000-0001-9195-312X
Wei HanDepartment of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China.
Junqiang WangDepartment of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China.

Funding

Beijing Municipal Natural Science Foundation L234009The Cross-cooperation project of Beijing Science and Technology New Star Program 20240484579
6 · The paper itself

Abstract

objectivesGiven the critical biomechanical role of the calcar femorale in load transmission and fracture stability, understanding its relationship with postoperative complications is essential for optimizing surgical outcomes. Therefore, this study aimed to explore the relationship between calcar femorale injury and postoperative complications of femoral neck fracture in young and middle-aged patients.

methodsA retrospective analysis was conducted on 350 femoral neck fracture patients (aged 18-65 years) treated with closed reduction and three cannulated screws fixation at a single institution from 2015 to 2020. Evaluate the clinical and imaging information of patients such as sex, age, body mass index, Garden classification, calcar femorale injury situation, computed tomography Hounsfield units (CT HUs), comorbidities (e.g., diabetes, hypertension etc.) and complications (femoral neck shortening, nonunion, and femoral head necrosis). CT-based 3D reconstruction was used to analyze calcar femorale morphology. Statistical analyses included univariate and multivariate logistic regression to identify independent risk factors.

resultsA total of 284 patients were included for analysis according to the inclusion and exclusion criteria. The results showed that Garden classification with displaced type (p < 0.001, OR = 4.615, 95% CI: 2.479-8.593), calcar femorale injury (p = 0.026, OR = 1.990, 95% CI: 1.087-3.645) and lower CT HUs (p = 0.002, OR = 0.989, 95% CI: 0.982-0.996) were independent risk factors for femoral neck shortening. Whether the patient has diabetes (p = 0.005, OR = 10.069, 95% CI: 2.043-49.628) was an independent risk factor for femoral neck nonunion. BMI (p = 0.030, OR = 1.154, 95% CI: 1.014-1.313) and Garden classification with displaced type (p < 0.001, OR = 10.000, 95% CI: 2.950-33.903) were independent risk factors for femoral head necrosis.

conclusionThis study found that older patients with displaced type femoral neck fractures with calcar femorale injury are more likely to experience femoral neck shortening. Clinicians should pay close attention to the above risk factors to reduce the incidence of postoperative complications in young and middle-aged patients with femoral neck fractures.

Indexed as

Bone ScrewsClosed Fracture ReductionFemoral Neck FracturesPostoperative ComplicationsAdolescentAdultAgedDiabetes MellitusFemaleFemurHumansImaging, Three-DimensionalMaleMiddle AgedRetrospective StudiesRisk Factorscalcar femoralefemoral head necrosisfemoral neck fracturesfemoral neck shorteningnonunionpostoperative complications

Identifiers

PMID40803682
PMCPMC12404869

What Socratic holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.