ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2019
The lateral femoral notch sign: a reliable diagnostic measurement in acute anterior cruciate ligament injury.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05682820 (Analysis of Radiological Features of Lateral Femoral Impaction Fracture / Lateral Femoral Notch Sign), which is not on this map. Cited by 15 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
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.
Analysis of Radiological Features of Lateral Femoral Impaction Fracture / Lateral Femoral Notch Sign
Who cites it
15 citing papers in PubMed, 25 citations in OpenAlex.
- Anterolateral ligament injury in ACL-injured patients is not associated with the presence of the deep lateral femoral notch sign: A cross-sectional study.Journal of experimental orthopaedics · 2026Article
- Subchondral bone abnormalities in the knee: imaging techniques, regional anatomy, and pathology.Skeletal radiology · 2026Review
- Lateral meniscus posterior root repair during ACL reconstruction restores knee stability and results in outcomes comparable to isolated ACL reconstruction: A propensity-matched cohort analysis.Journal of experimental orthopaedics · 2026Article
- The deep lateral femoral notch sign (DLFNS) is associated with concomitant knee injuries in skeletally immature patients with anterior cruciate ligament injuries.Journal of experimental orthopaedics · 2025Article
- DEEP lateral femoral notch sign is associated with lateral meniscus tear and non-spherical lateral femoral condyle in ACL deficient knee.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025Article
- Posterior lateral meniscal overhang is associated with ACL tears: A retrospective case-control study.Journal of orthopaedics · 2024Article
- Impaction Fractures of the Lateral Femoral Condyle Related to Anterior Cruciate Ligament Injury: A Scoping Review Concerning Diagnosis, Prevalence, Clinical Importance, and Management.Clinics in orthopedic surgery · 2023Article
- The influence of distribution, severity and volume of posttraumatic bone bruise on functional outcome after ACL reconstruction for isolated ACL injuries.Archives of orthopaedic and trauma surgery · 2023Article
- Diagnostic value of the lateral femoral notch sign and kissing contusion in patients with anterior cruciate ligament injuries: a case-control study.Archives of orthopaedic and trauma surgery · 2023Article
- Lateral Femoral Condyle CRATER sign of BRIK an Ancillary Sign of Lateral Patellar Dislocation.The Indian journal of radiology & imaging · 2022Article
- Steep posterior lateral tibial slope, bone contusion on lateral compartments and combined medial collateral ligament injury are associated with the increased risk of lateral meniscal tear.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Article
- [Research progress of lateral femoral notch sign in diagnosis of anterior cruciate ligament rupture].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2021Article
- The deep lateral femoral notch sign: a reliable diagnostic tool in identifying a concomitant anterior cruciate and anterolateral ligament injury.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Article
- High prevalence of a deep lateral femoral notch sign in patients with anterior cruciate ligament (ACL) and concomitant posterior root tears of the lateral meniscus.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Article
- The deep medial femoral sulcus sign: does it exist?Skeletal radiology · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo describe the validity and inter- and intra-observer reliability of the lateral femoral notch sign (LFNS) as measured on conventional radiographs for diagnosing acute anterior cruciate ligament (ACL) injury.
methodsPatients (≤ 45 years) with a traumatic knee injury who underwent knee arthroscopy and had preoperative radiographs were retrospectively screened for this case-control study. Included patients were assigned to the ACL injury group (n = 65) or the control group (n = 53) based on the arthroscopic findings. All radiographs were evaluated for the presence, depth and location of the LFNS by four physicians who were blind to the conditions. To calculate intra-observer reliability, each observer re-assessed 25% of the radiographs at a 4-week interval.
resultsThe depth of the LFNS was significantly greater in ACL-injured patients than in controls [median 0.8 mm (0-3.1 mm) versus 0.0 mm (0-1.4 mm), respectively; p = 0.008]. The inter- and intra-observer reliabilities of the LFNS depth were 0.93 and 0.96, respectively. Secondary knee pathology (i.e., lateral meniscal injury) in ACL-injured patients was correlated with a deeper LFNS [median 1.1 mm (0-2.6 mm) versus 0.6 mm (0-3.1 mm), p = 0.012]. Using a cut-off value of 1 mm for the LFNS depth, a positive predictive value of 96% was found.
conclusionThis was the first study to investigate the inter- and intra-observer agreement of the depth and location of the LFNS. The depth of the LFNS had a very high predictive value for ACL-injured patients and could be used in the emergency department without any additional cost. A depth of > 1.0 mm was a good predictor for ACL injury. Measuring the depth of the LFNS is a simple and clinically relevant tool for diagnosing ACL injury in the acute setting and should be used by clinicians in patients with acute knee trauma. LEVEL OF EVIDENCE: Diagnostic study, level II.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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 OpenQuestion graph.