Evidence map›Paper›PMID 29881887›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2019

Blackburne-Peel ratio predicts patients' outcomes after total knee arthroplasty.

Henrik Behrend, Tilman Graulich, Rene Gerlach, Christian Spross, Andreas Ladurner

Abstract read
PubMed Publisher
In one paragraph

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. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–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

18 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Patella baja after intramedullary nailing of tibial fractures, using an infrapatellar/transtendinous approach, predicts worse patient reported outcome.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022
    Article
  11. Article
  12. [Biomechanical research on effects of pseudo-patella baja on stress of patellofemoral joint after total knee arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2021
    Article
  13. Importance of the gender and preoperative knee sagittal alignment to avoid unnecessary tibial resection in TKR.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2021
    Article
  14. Article
  15. Article
  16. Femoral joint line restoration is a major determinant of postoperative range of motion in revision total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019
    Article
  17. Article
  18. 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.

Henrik BehrendDepartment of Orthopaedics and Traumatology, Kantonsspital St. Gallen, Rorschacherstrasse 95, 9007, St. Gallen, Switzerland. henrik.behrend@kssg.ch.ORCID http://orcid.org/0000-0002-4152-0382
Tilman GraulichTrauma Department, Hannover Medical School, Hannover, Germany.
Rene GerlachDepartment of Orthopaedics and Traumatology, Kantonsspital St. Gallen, Rorschacherstrasse 95, 9007, St. Gallen, Switzerland.
Christian SprossDepartment of Orthopaedics and Traumatology, Kantonsspital St. Gallen, Rorschacherstrasse 95, 9007, St. Gallen, Switzerland.
Andreas LadurnerDepartment of Orthopaedics and Traumatology, Kantonsspital St. Gallen, Rorschacherstrasse 95, 9007, St. Gallen, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAlterations in patellar height and posterior tibial slope (PTS) are frequently measured radiographic parameters associated with postoperative impairments after total knee arthroplasty (TKA). Few studies correlate the clinical outcome of TKA with the radiological indices. Both the modified Insall-Salvati ratio (mISR) and the Blackburne-Peel ratio (BPR) were hypothesised to correlate with the clinical outcome after TKA.

methodsA total of 282 computer navigated primary LCS

resultsMean mISR (1.5-1.4) and BPR (0.8-0.6) decreased from preoperatively to 1 year follow-up. Mean joint-line shift in a cranial direction was 2 mm after TKA implantation. Analysis of dichotomous variables (presence of PB and PPB or not) only showed significantly lower flexion in patients with PPB (p < 0.001). However, multiple regression revealed that BPR was a significant positive independent predictor for FJS-12 (p = 0.016) and flexion (p < 0.001) at 1 year follow-up. Postoperative PTS (p < 0.01) and initial patella height (p < 0.001) were both predictive for BPR at follow-up, while the joint-line height was not.

conclusionsThe BPR is a useful and reliable radiographic parameter to predict patient outcomes 1 year after primary navigated TKA. Lowering the BPR should be avoided, as this may lead to significant restrictions in terms of ROM and PROMs. LEVEL OF EVIDENCE: Level 3.

Indexed as

Arthroplasty, Replacement, KneeTreatment OutcomeAdultAgedAged, 80 and overAlgorithmsFemaleHumansKnee JointMaleMiddle AgedOrthopedicsPatellaPatient Reported Outcome MeasuresPostoperative PeriodPredictive Value of TestsAnterior knee painForgotten joint score-12Patella bajaPatellar heightPosterior tibial slopePseudo-patella bajaTotal knee arthroplasty (TKA)Total knee replacement

Identifiers

PMID29881887

What OpenQuestion holds

Textmetadata
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.