Evidence map›Paper›PMID 30460463›Full record

ArticleInternational orthopaedics2019

Surgical medial patellofemoral ligament reconstruction versus non-surgical treatment of acute primary patellar dislocation: a prospective controlled trial.

Xiaozuo Zheng, Yang Hu, Peng Xie, Meijuan Cui, Xuelin Ma, Yu-E Feng, Juyuan Gu, Shijun Gao

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in International orthopaedics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05533671 (Conservative Versus Surgical Management of First Time Patella Dislocations), which is not on this map. Cited by 22 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 7 pooled it
1.4field-weighted citation impact, top 19% 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.

NCT05533671 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

Conservative Versus Surgical Management of First Time Patella Dislocations

TypeinterventionalSponsorColumbia UniversityRan2026 to 2032Enrolled200ConditionsPatella DislocationArmsmedial patellofemoral reconstruction, Non-operative group
3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 7 syntheses or guidelines pooled it, 38 citations in OpenAlex.

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  13. Risk factors and treatment rationale for patellofemoral instability in the pediatric population.Journal of the Pediatric Orthopaedic Society of North America · 2024
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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

8 authors at 3 institutions in 1 country.

Xiaozuo ZhengDepartment of Orthopedics, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China. xiaozuo_zheng@163.com.
Yang HuThe Second Department of Intensive Care Unit, Children's Hospital of Hebei Province, 133 Jianhua Street, Shijiazhuang, 050031, Hebei, China.
Peng XieKey Laboratory of Biomechanics of Hebei Province, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China.
Meijuan CuiKey Laboratory of Biomechanics of Hebei Province, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China.
Xuelin MaDepartment of Orthopedics, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China.
Yu-E FengDepartment of Orthopedics, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China.
Juyuan GuDepartment of Orthopedics, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China.
Shijun GaoDepartment of Orthopedics, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China. 13595933@qq.com.
Hebei Medical University · CNThird Hospital of Hebei Medical University · CNHospital of Hebei Province · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe acute primary (first-time) lateral patellar dislocation is associated with a high rate of functional disability. There is no consensus as to the choice of surgical or non-surgical treatment for these patients. The aim of this study is to compare the clinical results between the surgical (reconstruction of the medial patellofemoral ligament [MPFL]) and non-surgical treatments for acute primary patellar dislocations.

methodsSixty-nine skeletally mature patients (69 knees) were included in this prospective non-randomized controlled trial. At least one predisposing factor for patellar dislocation (including patella alta, high lateral patellar tilt, trochlear dysplasia, and increased TT-TG distance) was identified in the included patients. Thirty patients were treated surgically with MPFL reconstruction, and the other 39 patients were treated non-surgically. The main outcome variable was patellar redislocation within a two year follow-up period. The Kujala questionnaire was applied for analyzing the pain and the quality of life. The additional surgeries due to patellofemoral problems were also recorded.

resultsPatellar redislocation occurred in eight patients in the non-surgical group, while no redislocation occurred in the surgical group (P < 0.05). Four patients in non-surgical group underwent further surgery due to patellar redislocation and poor function during the follow-up period. The Kujala score and the percentage of "good/excellent" results on the Kujala score of the surgical group were significantly better than that of the non-surgical group (P < 0.05).

conclusionsThe surgical MPFL reconstruction achieved better clinical outcomes compared with non-surgical treatment for the acute primary patellar dislocation in the skeletally mature patients with the presence of abnormal patellofemoral anatomy. Surgery should be considered as the better choice for these specific patients.

Indexed as

AdolescentAdultFemaleHumansLigaments, ArticularMalePainPatellar DislocationPatellofemoral JointPlastic Surgery ProceduresProspective StudiesQuality of LifeSurveys and QuestionnairesYoung AdultAcute primary patellar dislocationMedial patellofemoral ligamentMPFL reconstruction

Identifiers

PMID30460463
OpenAlexW2901630972

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.