Evidence map›Paper›PMID 33638676›Full record

ArticleArchives of orthopaedic and trauma surgery2022

A novel radiological classification system of the distal femur.

Mustafa Citak, Ali Levent, Eduardo M Suero, Kristof Rademacher, Sophia-Marlene Busch, Thorsten Gehrke

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Article in Archives of orthopaedic and trauma surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

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15citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

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15 citing papers in PubMed.

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  12. Ten key steps: How to successfully publish?Joint diseases and related surgery · 2023
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5 · Who and what money

Authors and funding

6 authors.

Mustafa Citak *Department of Orthopaedic Surgery, ENDO-Klinik Hamburg, Holstenstrasse 2, 22767, Hamburg, Germany. mcitak@gmx.de.ORCID http://orcid.org/0000-0003-3207-7101
Ali Levent *Department of Orthopaedic Surgery, ENDO-Klinik Hamburg, Holstenstrasse 2, 22767, Hamburg, Germany.
Eduardo M SueroDepartment of Traumatology, University Hospital München, München, Deutschland.
Kristof RademacherDepartment of Orthopaedic Surgery, ENDO-Klinik Hamburg, Holstenstrasse 2, 22767, Hamburg, Germany.
Sophia-Marlene BuschDepartment of Orthopaedic Surgery, ENDO-Klinik Hamburg, Holstenstrasse 2, 22767, Hamburg, Germany.
Thorsten GehrkeDepartment of Orthopaedic Surgery, ENDO-Klinik Hamburg, Holstenstrasse 2, 22767, Hamburg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn our previous studies, we were able to identify anatomical differences as a predictor for aseptic loosening following primary and revision surgery with the use of rotating hinge prosthesis. This study was performed to answer following question: can a novel radiological classification system of the distal femur be identified? MATERIALS AND

methodsA total of 200 patients who received standardized anteroposterior (AP) and lateral views of the knee joint were included in this study. On AP radiographs, we measured the distance between inner diameter of the femur at 20 cm proximally from the knee and at a point 2 cm proximally from the adductor tubercle. The ratio of the inner diameter of the femoral canal at 20 cm proximal of knee joint to the inner diameter of medullary canal at 2 cm proximal of adductor tubercle was used as a novel index ratio. Two observers blindly and independently reviewed the anteroposterior radiographs twice.

resultsThree groups of anatomical classification can be constructed for each sex according to the 25th and 75th percentiles. A higher distribution of Type C was found in female patients. The median intra-observer reliability for rater 1 was 0.995 (IQR 0.994-0.997). We had also a high inter-observer reliability with ICC of 0.997 (95% CI 0.996-0.998).

conclusionsThe novel classification presents three different types of the knee joint for male and female patients. Type C has a wider inner diaphyseal diameter compared to Type A with a narrow inner diaphyseal diameter.

Indexed as

FemurKnee ProsthesisFemaleHumansKnee JointMaleRadiographyReproducibility of ResultsDistal femurInter-observer reliabilityIntra-observer reliabilityNovel classification systemRadiological

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