Evidence map›Paper›PMID 35264236›Full record

SynthesisJournal of orthopaedic surgery and research2022

Comparison of posterior cruciate retention and substitution in total knee arthroplasty during gait: a systematic review and meta-analysis.

Chunjiang Li, Mingjie Dong, Dinglong Yang, Zhiqiang Zhang, Junjun Shi, Ruipeng Zhao, Xiaochun Wei

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of orthopaedic surgery and research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

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

  1. Pooled it
  2. Step-by-step insight into gait analysis: A narrative review unlocking knee biomechanics.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

7 authors.

Chunjiang Li *Department of Orthopaedics, The Second Hospital of Shanxi Medical University, No. 382 Wuyi Road, Taiyuan, 030001, China.
Mingjie Dong *Department of Orthopaedics, The Second Clinical Medical College of Shanxi Medical University, Taiyuan, 030001, China.
Dinglong YangDepartment of Orthopaedics, The Second Clinical Medical College of Shanxi Medical University, Taiyuan, 030001, China.
Zhiqiang ZhangDepartment of Orthopaedics, The Second Hospital of Shanxi Medical University, No. 382 Wuyi Road, Taiyuan, 030001, China.
Junjun ShiDepartment of Orthopaedics, The Second Hospital of Shanxi Medical University, No. 382 Wuyi Road, Taiyuan, 030001, China.
Ruipeng ZhaoDepartment of Orthopaedics, The Second Hospital of Shanxi Medical University, No. 382 Wuyi Road, Taiyuan, 030001, China.
Xiaochun WeiDepartment of Orthopaedics, The Second Hospital of Shanxi Medical University, No. 382 Wuyi Road, Taiyuan, 030001, China. sdeygksys@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo compare the gait patterns between posterior cruciate retention and substitution in total knee arthroplasty (TKA).

methodsElectronic databases including the PubMed, Embase, CINAHL, Web of Science, and Cochrane databases were searched to identify clinical trials investigating posterior cruciate retention versus substitution in TKA. The outcome measurements were the kinematic gait parameters (flexion at heel strike, maximum flexion during loading response, flexion range during loading, minimal flexion at terminal stance, maximal flexion at the swing, and total flexion during the gait cycle), Knee Society Score (KSS), knee flexion, knee extension, and walking speed. Statistical software Review Manager 5.4 and Stata 14.0 were used for data analysis.

resultsThere were finally 9 studies included in this meta-analysis. The results did not reveal differences between posterior cruciate retention (CR) and posterior cruciate substitution (PS) groups in TKA, in terms of kinematic gait parameters, knee extension, walking speed, and KSS. However, the PS group had a significantly larger knee flexion angle than that in the CR group [weighted mean difference = - 3.20, 95% CI - 6.13 to - 0.28, P = 0.03].

conclusionBoth the posterior cruciate retention and posterior cruciate substitution lead to obvious improvements in patient function and have their advantages in getting a good cup position. The PS design is significantly better on the knee flexion, while there are no statistical differences in kinematic gait parameters and outcome scores between them. This might indicate that surgeons do not necessarily need a PS design to substitute the posterior cruciate ligament during TKA.

Indexed as

Posterior Cruciate LigamentArthroplasty, Replacement, KneeBiomechanical PhenomenaGaitHumansKnee JointKnee ProsthesisOsteoarthritis, KneePosterior Cruciate Ligament ReconstructionRange of Motion, ArticularGaitPosterior cruciate retentionPosterior cruciate substitutionTotal knee arthroplasty

Identifiers

PMID35264236
PMCPMC8906002

What OpenQuestion holds

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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.