ArticleArchives of orthopaedic and trauma surgery2023
Predictors of and predictive nomogram for cut-out of proximal femur nail anti-rotation device in intertrochanteric fractures.
Article in Archives of orthopaedic and trauma surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 11 citations in OpenAlex.
- Observational
- The "double-intra" pertrochanteric femur fracture: an irreducible and redisplaceable fracture pattern.Journal of orthopaedic surgery and research · 2025Article
- Comparison of antirotation proximal femoral nail and talon locking nail systems in the treatment of intertrochanteric fractures: functional and cost-effectiveness outcomes.Archives of orthopaedic and trauma surgery · 2025Article
- Evaluation of reduction quality and implant positioning in intertrochanteric fracture fixation: A review of key radiographic parameters.World journal of orthopedics · 2025Review
- Research on Classification Criteria for the Reducibility and Irreducibility of Intertrochanteric Femoral Fractures.Orthopaedic surgery · 2025Article
- Predictive indicators of proximal femur nail antirotation device cut-out in intertrochanteric fractures: introduction of a novel radiographic parameter.Archives of orthopaedic and trauma surgery · 2025Article
- Research Progress on the Treatment of Geriatric Intertrochanteric Femur Fractures with Proximal Femur Bionic Nails (PFBNs).Orthopaedic surgery · 2024Review
- Treatment of irreducible intertrochanteric femoral fracture with a minimally invasive clamp reduction technique via the anterior approach.Journal of orthopaedic surgery and research · 2023Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThis study determined independent predictors and developed a predictive nomogram for failed correction of intertrochanteric fractures due to cut-out of the proximal femur nail anti-rotation (PFNA) device.
methodsDemographic and radiological data of 592 adult patients with intertrochanteric fractures (AO 31A) treated by PFNA were collected retrospectively. Independent predictors of cut-out were obtained through univariate and multivariate analyses, and a predictive nomogram was established. The discrimination, calibration, and clinical utility of the nomogram were based on receiver operating characteristic curve (AUC), concordance index (C-index), calibration curve, and decision curve analysis, respectively.
resultsOverall, 18 (3.04%) cases of cut-out occurred. Independent predictors according to the multivariate analysis were body mass index (BMI), poor-to-acceptable quality of reduction, PFNA blade position, and tip-apex distance (TAD). AUC of the nomogram was 0.849, and C-index was 0.849 (95% CI [0.844-0.854]). Bootstrapping yielded a corrected C-index of 0.849. The calibration and decision curves indicated good agreement and clinical benefit of the nomogram.
conclusionA reliable predictive nomogram was developed for cut-out of the PFNA in intertrochanteric fractures, based on BMI, quality of reduction, blade position, and TAD.
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