Trial reportJournal of orthopaedic surgery and research2024
Compressive buttress compared with off-axial screw fixation for vertical femoral neck fractures in young adults: a prospective, randomized controlled trial.
Trial report in Journal of orthopaedic surgery and research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 3 of them syntheses that pooled it.
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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.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- A systematic review of the relative differences in adverse events used for sample size calculations in orthopaedic trauma trials.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026Pooled it
- What patient reported outcome measures are used in clinical trials in hip fracture? A systematic mapping review.BMC musculoskeletal disorders · 2026Pooled it
- Effect of different types of internal fixation on the incidence of femoral head necrosis in adult femoral neck fractures: a single-arm rate and network meta-analysis.European journal of medical research · 2025Pooled it
- Femoral neck-specific cortical thickness predicts internal fixation complications across adults with implications for elderly surgical decision-making.Frontiers in medicine · 2026Article
- Reverse obliquity femoral neck fractures: two case reports with a literature review.Frontiers in surgery · 2026Article
- Comparative study on femoral neck fractures treatment: partial threaded cannulated screw versus different combinations of partial threaded cannulated screw and fully threaded headless cannulated screw.Journal of orthopaedic surgery and research · 2025Article
- Effect of three cannulated compression screws combined with an obstructing screw on the biomechanical performance of pauwels type III femoral neck fractures: a finite element analysis.BMC musculoskeletal disorders · 2025Article
- [Correlation between combined deflection angle classification adduction typing and complications after internal fixation of adduction femoral neck fracture].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2024Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
backgroundTo compare the clinical outcomes of compressive buttress screw (CBS) fixation, a novel screw fixation strategy, to off-axial screw fixation (off-axial partial threaded cannulated screw, OPTCS) for vertical femoral neck fractures (FNFs) in young adults.
methodsA total of 146 adults younger than 55 years old with high-energy Pauwels type III FNFs were randomized to receive CBS fixation or OPTCS fixation. Primary outcomes were complication rates, including fixation failure, fracture nonunion, and avascular necrosis of the femoral head (ANFH) at 24 months after treatment. Fixation loosening, femoral neck shortening and varus collapse, patient function and quality of life using the Harris hip score (HHS), and EuroQol-5 dimensional-5 levels (EQ-5D-5L) questionnaire (including EQ-5D-5L and EQ-VAS) were assessed as secondary outcomes at 24 months.
resultsCBS and OPTCS fixation groups were similar with regard to demographics at baseline. At 24 months, patients in the CBS fixation cohort had a significantly lower rate of fixation failure (10.5% vs. 25.0%, p = 0.041) and fracture nonunion (1.8% vs. 18.3%, p = 0.003) compared with patients who received OPTCS fixation. There was no difference in rate of ANFH (7.0% vs. 11.7%, p = 0.389) between groups. Additionally, patients managed with CBS fixation showed significantly less fixation loosening (19.3% vs. 58.3%, p < 0.001), less severe femoral neck shortening and varus collapse (10.5% vs. 25.0%, p = 0.007), higher HHS (93 vs. 83, p = 0.001) and more excellent grade (68.4% vs. 36.7%, p = 0.008), higher EQ-5D-5L (0.814 vs, 0.581, p < 0.001) and EQ-VAS (85 vs. 80, p = 0.002).
conclusionCBS screw fixation confers significantly lower complication rate in addition to higher functional and quality of life outcomes for young adults with high-energy FNF compared with OPTCS fixation.
trial registrationThis prospective, randomized controlled trial was approved by the institutional review board of our center, Ethics Committee of Shanghai sixth people's Hospital, and registered at www.chictr.org.cn (Approval Number: ChiCTR1900026283; Registered 29 September 2019-Retrospectively registered, https://www.chictr.org.cn/showproj.html?proj=43164 ).
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