Evidence map›Paper›PMID 41333627›Full record

ReviewJournal of experimental orthopaedics2025

Comparable outcomes between quadriceps and hamstring tendon autografts for isolated medial patellofemoral ligament reconstruction: A systematic review of studies with minimum 2-year follow-up.

Ehson Maleki, Ali Ahmadi Pirshahid, Lee R Benaroch, Raheef Alatassi, Hussein Maleki, Debra Bartley, Robert Litchfield, Patrick Thornley, Karthick Rangasamy

Abstract readReview
In one paragraph

Review in Journal of experimental orthopaedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Review
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

9 authors.

Ehson MalekiBaylor College of Medicine School of Medicine Houston Texas USA.ORCID https://orcid.org/0009-0006-3286-9394
Ali Ahmadi PirshahidDivision of Orthopaedic Surgery, Department of Surgery Western University London Ontario Canada.
Lee R BenarochDivision of Orthopaedic Surgery, Department of Surgery Western University London Ontario Canada.
Raheef AlatassiDivision of Orthopaedic Surgery, Department of Surgery Western University London Ontario Canada.
Hussein MalekiCollege of Natural Sciences and Mathematics University of Houston Houston Texas USA.
Debra BartleyDivision of Orthopaedic Surgery, Department of Surgery Western University London Ontario Canada.
Robert LitchfieldDivision of Orthopaedic Surgery, Department of Surgery Western University London Ontario Canada.
Patrick ThornleyDivision of Orthopaedic Surgery, Department of Surgery Western University London Ontario Canada.
Karthick RangasamyDivision of Orthopaedic Surgery, Department of Surgery Western University London Ontario Canada.ORCID https://orcid.org/0000-0002-4620-723X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To systematically review existing evidence to discern the most effective autograft between the hamstring tendon (HT) and the quadriceps tendon (QT) for isolated medial patellofemoral ligament (MPFL) reconstruction to address recurrent patellar instability. Methods: Medline, Embase and Scopus search strategies were developed following the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. Only studies that included isolated MPFL reconstruction (MPFLR) using quadriceps or hamstring autograft on patients 12 years or older affected by recurrent patellofemoral instability with a minimum follow-up of 2 years were considered. The primary outcome of this review was the re-dislocation rate, and secondary outcomes included patient-reported outcome measures (PROMs), complications and radiographic parameters. Results: Twelve studies, comprising 339 patients who underwent isolated MPFLR using HT autograft and 139 patients using QT autograft (follow-up range, 24-120 months), were included. Only one HT study reported patellar re-dislocations following MPFLR, with four patients requiring revision surgery. All other studies reported nil patellar re-dislocation. All studies showed significant mean improvements in postoperative Kujala (range of improvement in HT group from 26.5 to 41.4; QT group from 6.6 to 53.0) and Lysholm scores (range of improvement in HT group from 41.7 to 45.84; QT group from 10.9 to 46.0). Five studies provided postoperative Tegner Activity scores (postoperative range: 4.0-7.6). Four studies reported significant decreases in patellar tilt angle (PTA) postoperatively (range in HT group: 12.6-16.3; QT group: 13.0). Five studies reported significant decreases in the pain scale (visual analogue scale) postoperatively (range: 1.0-1.9). Seven studies reported that all patients had a full range of motion postoperatively. Conclusion: There is no significant difference in re-dislocation rate or PROMs between isolated MPFLR done with HT compared to QT autograft. Major limitations of this systematic review include a lack of strong outcome measures specific to patients with patellofemoral instability, along with few comparative studies. Level of Evidence: Level IV, a systematic review of Level I-IV studies.

Indexed as

hamstringkneemedial patellofemoral ligament reconstruction (MPFL)patellar dislocationpatellar instabilityquadriceps

Identifiers

PMID41333627
PMCPMC12667484

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.