Evidence map›Paper›PMID 39862255›Full record

Observational studyArchives of orthopaedic and trauma surgery2025

Predictors of functional recovery following surgical repair of quadriceps tendon rupture: insights from a German multicentre study.

Ronny Langenhan, Niklas Reimers, Petr Kohut, Axel Probst, Stefan Bushuven, Ludwig Schütz, Milena Trifunovic-Koenig

Abstract readMulticenter StudyObservational Study
PubMed Publisher
In one paragraph

Observational study in Archives of orthopaedic and trauma surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

7 authors.

Ronny LangenhanDepartment of Orthopedic Surgery, Hegau-Bodensee-Klinikum Singen, Virchowstrasse 10, 78224, Singen, Germany. ronnyla@gmx.de.ORCID http://orcid.org/0000-0002-7207-6720
Niklas ReimersDepartment of Orthopedic Surgery, Klinikum Chemnitz gGmbH, Chemnitz, Germany.
Petr KohutDIAKOMED - Diakoniekrankenhaus Chemnitzer Land gGmbH, Klinik für Orthopädie und Unfallchirurgie, Hartmannsdorf, Germany.
Axel ProbstDepartment of Orthopedic Surgery, Hegau-Bodensee-Klinikum Singen, Virchowstrasse 10, 78224, Singen, Germany.
Stefan BushuvenTraining Center for Emergency Medicine (NOTIS E.V), Engen, Germany.
Ludwig SchützDepartment of Orthopedic Surgery, Klinikum Chemnitz gGmbH, Chemnitz, Germany.
Milena Trifunovic-KoenigTraining Center for Emergency Medicine (NOTIS E.V), Engen, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMore extensive and cohesive studies on quadriceps tendon rupture (QTR) repair surgery are required to guide effective treatment strategies. Therefore, in this study, we aimed to identify predictors of subjective functional recovery following QTR repair surgery. MATERIALS AND

methodsThis multicentre retrospective cohort study enrolled 191 adults (age ≥ 18 years) who underwent surgical unilateral QTR repair (2010-2022) and had ≥ 1-year postoperative follow-up at three trauma centres in Germany. Multiple linear regression and moderation analyses evaluated seven patient-centred factors and eight treatment-related predictors of the International Knee Documentation Committee (IKDC) and Tegner-Lysholm Knee scores.

resultsThe participants ( mean age = 62.3 years) had mean (standard deviation) IKDC and Tegner-Lysholm Knee scores of 67.4 (19.4) and 74.8 (22.5), respectively. Male sex, lower body mass index (BMI), shorter time to surgery, and early rehabilitation adoption predicted higher functional scores (p < 0.05). Smoking and suturing techniques showed no significant main effects. Age was negatively correlated with IKDC scores when transosseous sutures were applied but not when suture anchors were used. Notably, 6% of the cohort were affected by complications such as re-rupture or deep vein thrombosis.

conclusionsPatient-centred factors (sex and BMI) and treatment-related factors (timing of surgery and rehabilitation protocols) significantly influence postoperative functional outcomes in patients with QTR. Early surgical intervention and dynamic rehabilitation protocols are important for optimising recovery, and suture anchor techniques may be advantageous in older patients. Further research is essential to improve QTR management strategies and enhance patient outcomes. EVIDENCE LEVEL: IV-Retrospective cohort study without a comparison group.

Indexed as

Quadriceps MuscleRecovery of FunctionTendon InjuriesAdultAgedFemaleGermanyHumansMaleMiddle AgedRetrospective StudiesRuptureAnchor sutureIKDC scoreQuadriceps tendon ruptureTegner–Lysholm scoreTendon repairTransosseous fixation

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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.