Evidence map›Paper›PMID 30788530›Full record

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

Femoral joint line restoration is a major determinant of postoperative range of motion in revision total knee arthroplasty.

Hyuk-Soo Han, Cheol Hwan Yu, Nari Shin, Sungho Won, Myung Chul Lee

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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 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

15 citing papers in PubMed, 32 citations in OpenAlex.

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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 at 2 institutions in 1 country.

Hyuk-Soo HanDepartment of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, 110-744, Seoul, South Korea.
Cheol Hwan YuDepartment of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, 110-744, Seoul, South Korea.
Nari ShinDepartment of Public Health Sciences, Seoul National University, Seoul, South Korea.
Sungho WonDepartment of Public Health Sciences, Seoul National University, Seoul, South Korea.
Myung Chul LeeDepartment of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, 110-744, Seoul, South Korea. leemc@snu.ac.kr.ORCID http://orcid.org/0000-0002-8150-1573
Seoul National University Hospital · KRSeoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to comprehensively analyze the effects of femoral or tibial joint line elevation and patella height change on the clinical results after revision total knee arthroplasty (RTKA) and to determine which one is the significant factor that should be restored.

methodsOne hundred and sixty-six RTKA cases (144 patients) with a minimum 2-year follow-up were retrospectively analyzed. Demographic, operative, and clinical data were collected. Tibial and femoral joint line elevations were measured based on the distance from the tibial tubercle and from the adductor tubercle to the distal end of the femoral component, respectively. The patellar position was evaluated using the Insall-Salvati ratio and Blackburne-Peel index. The effects of clinical and radiological variables on the changes of range of motion (ROM) and clinical scores after RTKA were analyzed.

resultsFourteen knees (8.4%) showed a femoral joint line elevation of more than 5 mm, and 79 knees (47.6%) showed a tibial joint line elevation of more than 5 mm. Patella baja after RTKA was observed in 33 knees (19.9%), and pseudo-patella baja after RTKA was observed in 90 knees (54.2%). The linear mixed model revealed that the femoral joint line position was the only significant factor that affected the change of ROM after RTKA. No statistically significant correlation was observed between variables and postoperative clinical scores.

conclusionsRestoration of femoral joint line was the significant factor that increased postoperative ROM of the knee after RTKA. In complicated revision situations, surgeons should give priority to the restoration of distal femoral joint line to increase postoperative ROM. LEVEL OF EVIDENCE: IV.

Indexed as

AdultAgedAged, 80 and overArthroplasty, Replacement, KneeEpiphysesFemaleFemurHumansKneeKnee JointKnee ProsthesisMaleMiddle AgedPostoperative PeriodRadiographyRange of Motion, ArticularFemoral joint linePatellar positionRange of motionRevision total knee arthroplastyTKATotal knee replacement

Identifiers

PMID30788530
OpenAlexW2917901282

What OpenQuestion holds

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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.