Evidence map›Paper›PMID 27894178›Full record

ArticleKnee surgery & related research2016

Comparison of Radiological Parameters between Normal and Patellar Dislocation Groups in Korean Population: A Rotational Profile CT-Based Study.

Jatin Prakash, Jong-Keun Seon, Seong-Hwan Woo, Cheng Jin, Eun-Kyoo Song

Open access · diamondAbstract read
In one paragraph

Article in Knee surgery & related research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 18% of its field
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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Healthy knees have a highly variable patellofemoral alignment: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
    Pooled it
  3. Observational
  4. Article
  5. Sulcus depth, congruence angle, Wiberg index, TT-TG distance, and CDI are strong predictors of recurrent patellar dislocation.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Alignment changes after open-wedge high tibial osteotomy result in offloading in the patellofemoral joint: a SPECT/CT analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022
    Article
  13. Bony asymmetry in patellofemoral morphology and risk factors of instability are mostly clinically negligible.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
    Article
  14. Article
  15. Article
  16. Femoral trochlear morphology is associated with anterior cruciate ligament injury in skeletally immature patients.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
    Article
  17. Article
  18. Article
  19. Article
  20. Derotational femoral osteotomy changes patella tilt, patella engagement and tibial tuberosity trochlear groove distance.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
    Article
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 at 3 institutions in 2 countries.

Jatin PrakashDepartment of Orthopedic Surgery, Lady Hardinge Medical College University of Delhi, New Delhi, India.
Jong-Keun SeonDepartment of Orthopaedic Surgery, Chonnam National University Bitgoeul Hospital, Gwangju, Korea.
Seong-Hwan WooDepartment of Orthopaedic Surgery, Chonnam National University Bitgoeul Hospital, Gwangju, Korea.
Cheng JinDepartment of Orthopedic Surgery, Chinese People's Armed Police Force, Zhejiang Corps Hospital, Jiaxing, China.
Eun-Kyoo SongDepartment of Orthopaedic Surgery, Chonnam National University Bitgoeul Hospital, Gwangju, Korea.
Chonnam National University Hospital · KRChinese People's Armed Police ForceUniversity of Delhi · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePatellofemoral instability is a common cause of anterior knee pain in adolescents and young adults. Most normal and pathological values for diagnosing patellofemoral instability are based on Western literature. We conducted this radiological study to determine normal values for different patellofemoral parameters in a Korean population and to evaluate their usefulness in diagnosis. MATERIALS AND

methodsWe retrospectively reviewed the rotational profile computerized tomography (CT) scans of the patellar dislocation and control groups. Trochlear, patellar, rotational profile, and trochleo-patellar alignment parameters were compared between the groups. Receiver operating characteristic curves were drawn for significant parameters, and sensitivity and specificity were calculated for the cut-off values.

resultsThere were 48 patients in the patellar dislocation group and 87 patients in the control group. In the control group and patellar dislocation group, the mean sulcus angle was 132.5° and 143.3°, respectively, trochlear depth was 6.04 mm and 3.6 mm, bisect offset was 56.4% and 99.9%, lateral patellar tilting was 9.8° and 19.2°, patellar facet asymmetry was 63.5% and 45.16%, and the tibial tuberosity-trochlear groove (TT-TG) distance was 10.91 mm and 27.16 mm, respectively.

conclusionsThe trochlear depth, bisect offset, patella tilting, and TT-TG distance were parameters that significantly contributed to patellar instability. Rotational profile CT can be considered a good diagnostic tool to assess all these parameters that help to identify anatomical aberration resulting in patellofemoral instability, thereby helping in formulating the most effective treatment plan.

Indexed as

Computerized tomographyDislocationParameterPatellaRadiologic

Identifiers

PMID27894178
PMCPMC5134791
OpenAlexW2557343783

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.