ArticleOrthopaedic journal of sports medicine2025
Postoperative Knee Extensor Strength After Medial Patellofemoral Ligament Reconstruction Using Superficial Slip of the Quadriceps Tendon and the Factors That Affect Strength Recovery.
Article in Orthopaedic journal of sports medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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.
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.
Who cites it
1 citing paper in PubMed.
- Good clinical but inferior functional outcomes following surgical patellar stabilisation: A prospective study.Journal of experimental orthopaedics · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Medial patellofemoral ligament reconstruction (MPFLR) using the quadriceps tendon can avoid complications related to the fixation of other graft types to the patella. However, there is concern about postoperative loss of knee extensor muscle strength because of harvesting a portion of the quadriceps tendon. Hypothesis: Knee extensor muscle strength after superficial slip of the quadriceps tendon MPFLR (SQ-MPFLR) decreases postoperatively, and there are specific factors that effect knee extensor muscle strength recovery. Study Design: Case series study; Level of evidence 4. Methods: A total of 26 patients who underwent unilateral primary SQ-MPFLR were enrolled. Clinical and functional outcomes were evaluated using the Kujala score and Tegner activity score preoperatively and 12 months postoperatively. Knee extensor muscle strength was examined preoperatively and 6 and 12 months postoperatively using the Biodex dynamometer. The knee muscle strength of the operated leg was compared with that of the contralateral leg using the limb symmetry index (LSI). The associations of sex, body mass index, and daily sports activity level with knee extensor muscle strengths at 6 and 12 months postoperatively were investigated and compared between the 2 groups. Results: The preoperative mean Kujala score was 65.0 and significantly improved to 94.7 at 12 months after surgery ( Conclusion: The knee extensor LSI of patients who underwent SQ-MPFLR increased from 69.2% preoperatively to 82.0% postoperatively at 12 months. The patient group with a high sports activity level had a significantly higher knee extensor LSI than the group with a low sports activity level at 12 months after SQ-MPFLR surgery.
Indexed as
Identifiers
What OpenQuestion holds
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.