ArticleSkeletal radiology2018
Anterior laxity of the knee assessed with gravity stress radiograph.
Article in Skeletal radiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis 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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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.
- Reference standards for stress radiography measurements in knee ligament injury and instability: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Pooled it
- Radiographic evaluation of anterior tibial translation in the prone position after total knee arthroplasty: comparison of BCS-TKA and PS-TKA.Musculoskeletal surgery · 2025Article
- Computer-Assisted System in Stress Radiography for Anterior Cruciate Ligament Injury with Correspondent Evaluation of Relevant Diagnostic Factors.Diagnostics (Basel, Switzerland) · 2021Article
- Sequential analysis of three-dimensional tibiofemoral relationship through anatomic anterior cruciate ligament reconstruction with gravity-assisted radiographic technique in prone position.Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology · 2019Article
Corrections and comments
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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
objectiveTo clarify the advantage of prone position over supine position in radiographically-demonstrating anterior knee laxity measurement for anterior cruciate ligament (ACL) injury, and to optimize the radiographic technique for the ACL-deficient knees in a clinical setting. MATERIALS AND
methodsThirty-nine patients with unilateral ACL injury had consented to participate in this study. They were divided into two groups and subjected to the different radiographic evaluations: study 1 (20 patients); supine versus prone position with knee full-extended, and study 2 (19 patients); comparison of (1) prone position with knee full-extended (FPV), (2) prone position with knee flexed at 15° (AGV), and (3) supine position with calf put on a board at 15° of knee flexion (SGV). Lateral radiographs for both knees were taken and were measured the side-to-side difference of tibial position related to femur.
resultsIn study 1, the side-to-side difference was 2.8 ± 1.0 mm in supine position and 4.3 ± 2.1 mm in prone position, showing a statistically significant difference. In study 2, the side-to-side difference was 3.7 ± 2.4 mm in FPV, 4.6 ± 2.0 mm in AGV, and 4.2 ± 2.8 mm in SGV, while the difference in the latter two positions was larger than that in FPV.
conclusionsThe anterior laxity in prone position is larger than that in supine position for ACL injury. Moreover, the gravity-assisted lateral radiograph in prone position with knee flexed at 15° could be one of the preferable radiographic techniques and could provide more information than the simple radiograph.
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