ReviewOrthopaedic journal of sports medicine2021
Is Isolated Hip Strengthening or Traditional Knee-Based Strengthening More Effective in Patients With Patellofemoral Pain Syndrome? A Systematic Review With Meta-analysis.
Review in Orthopaedic journal of sports medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled 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.
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
8 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Effects of lower limb strengthening training on lower limb biomechanical characteristics and knee pain in patients with patellofemoral pain: a systematic review and meta-analysis.European journal of medical research · 2025Pooled it
- Effects of functional strength training on pain, function, and lower extremity biomechanics in patients with patellofemoral pain syndrome: a randomized clinical trial.Journal of orthopaedic surgery and research · 2025Trial
- Conservative treatment of patellofemoral pain: effectiveness of strength exercises compared to other treatments. a systematic review with meta-analysis.BMC sports science, medicine & rehabilitation · 2025Article
- Hip Muscle Strength and Fear of Movement are Associated with Self-Reported Function in Women with Patellofemoral Pain.Journal of musculoskeletal & neuronal interactions · 2025Article
- Combined Hip and Knee Strengthening Compared With Knee Strengthening for Individuals With Lateral Patellar Dislocation: A Single-blind, Superiority, Randomized Controlled Trial.Archives of rehabilitation research and clinical translation · 2024Article
- Analysis of lower limb muscle strength characteristics of amateur runners with patellofemoral pain: A cross-sectional study.PloS one · 2024Article
- Understanding the patho-anatomy of patellofemoral pain: A crucial foundation for comprehensive management.Orthopedic reviews · 2024Article
- Association between patellofemoral osteoarthritis with demographic features and anatomical variants of the knee in non-traumatic patients.International journal of physiology, pathophysiology and pharmacology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundFocus on the importance of hip muscle strength in patients with patellofemoral pain syndrome (PFPS) has recently increased. It is unknown whether patients with PFPS will benefit more from hip strengthening compared with traditional knee-based strengthening. PURPOSE: To compare the efficiency of isolated hip strengthening versus traditional knee-based strengthening for patients with PFPS. STUDY
designSystematic review; Level of evidence, 2.
methodsWe conducted a search for studies comparing isolated hip strengthening and knee-based strengthening by using the MEDLINE, Embase, and Cochrane Library electronic databases. The methodological quality of included studies was assessed using the PEDro scale. Predetermined variables from each study were extracted and analyzed.
resultsA total of 5 comparative studies were included in this review; all studies were of moderate to high quality and reflected good internal and external validity. Pain (visual analog scale [VAS]) and function (Anterior Knee Pain Scale) scores improved in both the hip and knee groups after strengthening intervention, although no statistically significant differences were seen between groups in the pooled analysis. In 2 studies, VAS pain scores were reduced earlier for patients in the hip group than for those in the knee group (
conclusionThe best-available evidence suggests that overall, isolated hip strengthening and knee strengthening were equivalent for treatment of PFPS.
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