Evidence map›Paper›PMID 26162985›Full record

ArticleInternational orthopaedics2016

Optimal patellar alignment with minimally invasive approaches in total knee arthroplasty after a minimum five year follow-up.

Ai-Bing Huang, Hai-Jun Wang, Jia-Kuo Yu, Bo Yang, Dong Ma, Ji-Ying Zhang

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in International orthopaedics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 4 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, 4 syntheses or guidelines pooled it.

  1. Pooled it
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  6. [A prospective randomized controlled study of total knee arthroplasty via mini-subvastus and conventional approach].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2018
    Trial
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  8. Personalized alignment in total knee arthroplasty reduces patellar tilt: A retrospective study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026
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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

6 authors.

Ai-Bing HuangInstitute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China.
Hai-Jun WangInstitute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China.
Jia-Kuo YuInstitute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China. yujiakuo@126.com.
Bo YangInstitute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China.
Dong MaInstitute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China.
Ji-Ying ZhangInstitute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, 100191, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePatellofemoral syndrome is still a common complication after total knee arthroplasty (TKA). However, the effects of specific surgical approaches on patellar tracking and alignment remain incompletely understood. In this study, we compared patellar alignment in patients who underwent TKA via three different techniques.

methodsA total of 96 patients who completed a minimum follow-up of five years were involved in three groups: 30 patients were treated with the traditional medial parapatellar approach (MPP group), 35 patients were treated with the mini-medial parapatellar approach (MMP group) and 31 were treated with a quadriceps-sparing approach (QS group). Radiographic data for patellar alignment and clinical results were compared.

resultsPatellar tilt and patellar displacement at the final follow-up evaluation differed significantly among the three groups [P < 0.01, analysis of variance (ANOVA)]. The MMP and QS groups exhibited more proper patellar alignment than the MPP group. The clinical results did not differ significantly among the groups (P > 0.05, ANOVA). In addition, there were no correlations between postoperative patellar alignment and clinical scores.

conclusionsThe results of this study indicate that TKA performed using minimally invasive approaches yields superior patellar alignment compared to the traditional MPP approach.

Indexed as

AgedAnalysis of VarianceArthroplasty, Replacement, KneeFemaleFollow-Up StudiesHumansMaleMiddle AgedMinimally Invasive Surgical ProceduresOsteoarthritis, KneePatellaPostoperative PeriodQuadriceps MuscleRetrospective StudiesMinimally invasive surgeryPatellar alignmentTotal knee arthroplasty

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Registered trials

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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.