Evidence map›Paper›PMID 27395356›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2017

Morphological classification of the femoral trochlear groove based on a quantitative measurement of computed tomographic models.

Shichang Chen, Zhe Du, Mengning Yan, Bing Yue, You Wang

Abstract read
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Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Does contemporary total knee designs replicate the anatomy of the native trochlea?European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024
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  9. Gender differences in femoral trochlea morphology.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Shichang ChenDepartment of Orthopaedic Surgery, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.
Zhe DuShanghai Key Laboratory of Orthopaedic Implants, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Mengning YanDepartment of Orthopaedic Surgery, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.
Bing YueDepartment of Orthopaedic Surgery, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.
You WangShanghai Key Laboratory of Orthopaedic Implants, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China. drwangyou@163.com.

Funding

National Natural Science Foundation of China 81272037
6 · The paper itself

Abstract

purposeThis study aimed to investigate the natural morphology of the femoral trochlear groove based on quantitative measurement.

methodsComputed tomographic femur models of 50 male and 50 female healthy Chinese adults (30-60 years) were analysed using three-dimensional software. Coaxial cutting planes (15° increments) rotating about the trochlear groove axis from the proximal to distal point were created, followed by the deepest point of the trochlear groove marked at each cross section. The shape, position, and orientation of the trochlear groove were analysed.

resultsThe trochlear groove was located laterally relative to the mechanical axis and consisted of the laterally oriented proximal part and medially oriented distal part. Based on the turning points located on different cross sections, the trochlear groove was classified into four types: types 45°, 60°, 75°, and 90°. The mediolateral position relative to the mechanical axis was types 45°, 60°, 75°, and 90°, from the lateral to medial side, while the distal parts of them extended along the same path. The orientation of the trochlear groove was relatively consistent and smooth, which oriented at approximately 1° medially between two adjacent segments, except at approximately 10° medially at the turning point.

conclusionThe trochlear groove tracking varies greatly amongst a population that is mainly categorized into four types. This study may be helpful for better understanding of the natural trochlear groove anatomy, prosthetic design modification, and provide the reference value for studying patellofemoral diseases such as patellar maltracking and trochlear dysplasia. LEVEL OF EVIDENCE: Prospective study, Level II.

Indexed as

Imaging, Three-DimensionalModels, AnatomicTomography, X-Ray ComputedAdultFemaleFemurHealthy VolunteersHumansKnee ProsthesisMaleMiddle AgedPatellofemoral JointProspective StudiesProsthesis DesignChinese populationComputed tomographyFemoral trochlear grooveMorphological analysisTotal knee arthroplasty

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Registered trials

None linked

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.