SynthesisJournal of orthopaedic surgery and research2026
Parallel versus non-parallel cannulated screw fixation for femoral neck fractures: a systematic review and meta-analysis.
Synthesis in Journal of orthopaedic surgery and research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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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Who cites it
1 citing paper in PubMed.
- [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 · 2026Review
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Authors and funding
7 authors.
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Abstract
objectiveFemoral neck fracture (FNF) is a common type of hip fracture, for which cannulated screw fixation is a primary internal fixation method. The optimal configuration for cannulated screw fixation remains controversial, with debate primarily focused on two approaches: parallel fixation configuration (PFC) versus non-parallel fixation configuration (NFC). The objective of this study was to compare the efficacy and safety of two configurations in the treatment of femoral neck fractures.
methodsFollowing PRISMA guidelines, we systematically searched PubMed, Embase, the Cochrane Library, and CNKI for studies comparing PFC and NFC in FNF fixation. Study quality was assessed using the Cochrane risk-of-bias tool and MINORS scale. Outcomes included femoral head necrosis, nonunion, femoral neck shortening, and fixation failure. Meta-analysis was conducted in RevMan 5.3, employing a fixed-effects model unless heterogeneity (I² > 50%) warranted an alternative approach.
resultsA total of 20 studies involving 1,508 patients were included in the meta-analysis. The meta-analysis showed that the NFC group had significantly better outcomes, including lower rates of femoral head necrosis (OR 0.50, 95% CI 0.34-0.74, P = 0.0005), nonunion (OR 0.41, 95% CI 0.26-0.65, P = 0.0001), femoral neck shortening (OR 0.40, 95% CI 0.28-0.57, P < 0.00001), and internal fixation failure (OR 0.34, 95% CI 0.22-0.52, P < 0.00001).
conclusionsOur findings indicate that NFC is more effective than traditional PFC for internal fixation of FNFs. Level of evidence Level III.
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