3,446 results match your criteria patellofemoral pain

Clinical and radiological outcomes of corrective exercises and neuromuscular electrical stimulation in children with flexible flatfeet: A randomized controlled trial.

Gait Posture 2021 Jun 12;88:297-303. Epub 2021 Jun 12.

Department of Physical Therapy For Pediatrics, Faculty of Physical Therapy, Cairo University, Egypt.

Background: Flexible flatfeet are common among children being scarcely symptomatic requires no specific treatment and resolves spontaneously. However, flexible flatfoot tends to advance and deteriorate overtime and eventually resulting in significant impairments such as plantar fasciitis and patellofemoral pain syndrome.

Research Question: What is the effect of corrective exercises and neuromuscular electrical stimulation in children with flexible flatfeet?

Method: This is a randomized controlled trial with 72 children, seven to twelve yearsold, randomly assigned to either intervention or control group (36 children for each group) and engaged in a four months (3 sessions/week) of corrective exercise and neuromuscular electrical stimulation or corrective exercise and sham neuromuscular electrical stimulation respectively. Read More

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Exploring overweight and obesity beyond body mass index: A body composition analysis in people with and without patellofemoral pain: Body composition in patellofemoral pain.

J Sport Health Sci 2021 Jun 18. Epub 2021 Jun 18.

La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, VIC 3086, Australia.

Purpose: To compare body mass index (BMI), body fat, and skeletal muscle mass between (i) a mixed-sex non-athletic cohort of people with patellofemoral pain (PFP) and pain-free people, and (ii) a non-athletic cohort of people with PFP and pain-free people subgrouped by sex (i.e., men and women with PFP vs. Read More

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Thai version of the Survey Instrument for Natural History, Aetiology and Prevalence of Patellofemoral Pain: Cross-cultural validation and test-retest reliability.

Asia Pac J Sports Med Arthrosc Rehabil Technol 2021 Oct 11;26:1-7. Epub 2021 Jun 11.

Department of Health Professions, Faculty of Health, Psychology and Social Care Manchester Metropolitan University, United Kingdom.

Background: /objective: The Survey Instrument for Natural History, Aetiology and Prevalence of Patellofemoral Pain (SNAPPS) is a self-report questionnaire which is a specifically designed measurement instrument to identify patellofemoral pain. It has reported high sensitivity, specificity and test-retest reliability to discriminate between people with knee pain, with or without patellofemoral pain. SNAPPS hasn't been studied in Thailand; therefore, the aim of this study was to cross-culturally adapt the questionnaire into Thai. Read More

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October 2021

Cartilage Biomarkers Coll2-1 and Coll2-1NO2 Are Associated with Knee OA MRI Features and Are Helpful in Identifying Patients at Risk of Disease Worsening.

Cartilage 2021 Jun 15:19476035211021892. Epub 2021 Jun 15.

ARTIALIS SA, CHU Sart-Tilman, Liège, Belgium.

Objective: To assess the cross-sectional association between serum levels of Coll2-1 and Coll2-1NO2, two cartilage degradation biomarkers; the burden of magnetic resonance imaging (MRI) features and clinical outcomes; and to evaluate the predictive value of these biomarkers on progression.

Design: A total of 121 subjects with knee osteoarthritis (OA) were followed during 1 year with pain, function, and MRI assessment (PRODIGE study). Type II collagen-specific biomarker Coll2-1 and its nitrated form Coll2-1NO2 were directly measured in serum using immunoassays at baseline and after 3-, 6-, and 12-month follow-up. Read More

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REPORT-PFP: a consensus from the International Patellofemoral Research Network to improve REPORTing of quantitative PatelloFemoral Pain studies.

Br J Sports Med 2021 Jun 14. Epub 2021 Jun 14.

Sports and Exercise Medicine, Queen Mary University of London, London, UK.

Patellofemoral pain is a common and often debilitating musculoskeletal condition. Clinical translation and evidence synthesis of patellofemoral pain research are compromised by heterogenous and often inadequately reported study details. This consensus statement and associated checklist provides standards for REPORTing of quantitative PatelloFemoral Pain (REPORT-PFP) research to enhance clinical translation and evidence synthesis, and support clinician engagement with research and data collection. Read More

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Autologous Matrix-Induced Chondrogenesis (AMIC) for Isolated Retropatellar Cartilage Lesions: Outcome after a Follow-Up of Minimum 2 Years.

Cartilage 2021 Jun 11:19476035211021908. Epub 2021 Jun 11.

Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland.

Purpose: To evaluate autologous matrix-induced chondrogenesis (AMIC) for isolated focal retropatellar cartilage lesions and the influence of patellofemoral (PF) anatomy on clinical outcomes at a minimum of 2-year follow-up.

Methods: Twenty-nine consecutive patients (31 knees) who underwent retropatellar AMIC with a mean age of 27.9 ± 11. Read More

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Management of patellofemoral joint osteoarthritis using biomechanical device therapy: a systematic review with meta-analysis.

Syst Rev 2021 Jun 9;10(1):173. Epub 2021 Jun 9.

Centre for Epidemiology Versus Arthritis, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK.

Background: Current clinical guidelines recommend conservative management including non-pharmacologic therapy prior to considering surgery for knee OA. There is a paucity of clinical trials investigating the use of biomechanical device therapies on those with patellofemoral joint osteoarthritis (PFJOA). The aim was to systematically review the effectiveness of biomechanical devices (bracing, taping, and footwear) in the management of symptomatic PFJOA. Read More

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Gait retraining for runners with patellofemoral pain: A protocol for systematic review and meta-analysis.

Medicine (Baltimore) 2021 May;100(19):e25789

Department of Orthopedics, Bijie Traditional Chinese Medicine Hospital, People's Republic of China.

Introduction: Patellofemoral pain (PFP) is highly prevalent in runners. Physical therapies were proved to be effective in the treatment of PFP. Gait retraining is an important method of physical therapy, but its effectiveness and safety for PFP remained controversial. Read More

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Pain relief following genicular nerve radiofrequency ablation: does knee compartment matter?

Pain Manag 2021 Jun 9. Epub 2021 Jun 9.

Department of Physical Medicine & Rehabilitation, Medical College of Wisconsin, Milwaukee, WI 53226, USA.

To investigate the effect of knee osteoarthritis (OA) compartment location on pain relief following genicular radiofrequency ablation. A retrospective chart review was performed on 62 patients. Visual analog scale scores at 3 and 6 months post procedure were compared with baseline and between compartment groups. Read More

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Photobiomodulation as an Adjunctive Treatment to Physiotherapy for Reduction of Anterior Knee Pain in Combat Soldiers: A Prospective, Double-Blind, Randomized, Pragmatic, Sham-Controlled Trial.

Lasers Surg Med 2021 Jun 8. Epub 2021 Jun 8.

Shaare Zedek Medical Center, Jerusalem, 9103102, Israel.

Background And Objectives: Anterior knee pain (AKP) is the most common knee pathology in athletes and occurs in 15% of army recruits of elite units during basic training. Of these, 50% are symptomatic 6 years later. Photobiomodulation (PBM) is a nonthermal red-to-near-infrared irradiation used for pain reduction of a variety of etiologies. Read More

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Pulsed electromagnetic field (PEMF) as an adjunct therapy for pain management in interstitial cystitis/bladder pain syndrome.

Int Urogynecol J 2021 Jun 8. Epub 2021 Jun 8.

Wake Forest Institute for Regenerative Medicine, Wake Forest Baptist Medical Center, 391 Technology Way, Winston Salem, NC, 27101, USA.

Introduction And Hypothesis: Patients with interstitial cystitis/bladder pain syndrome (IC/BPS) often experience chronic pelvic and even systemic pain that can be difficult to clinically manage. Pulsed electromagnetic field (PEMF) therapy, a non-invasive strategy that has shown significant efficacy for pain reduction in other chronic pain conditions, may provide benefit for pain management in patients with IC/BPS.

Methods: PEMF delivery to patients occurs via a bio-electromagnetic-energy device which consists of a flexible mat (180 × 50 cm) that the patient lies on for systemic, full-body delivery and/or a flexible pad (50 × 15 cm) for targeted delivery to a specific body region (e. Read More

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Anterior knee pain from the evolutionary perspective.

Knee 2021 Jun 4;31:1-10. Epub 2021 Jun 4.

Nuffield Department of Orthopaedics, Rheumatology & Musculoskeletal Sciences, University of Oxford, Nuffield Orthopaedic Centre, Headington, Oxford OX3 7LD, United Kingdom. Electronic address:

Background: This paper describes the evolutionary changes in morphology and orientation of the PFJ using species present through our ancestry over 340 million years.

Methods: 37 specimens from the Devonian period to modern day were scanned using a 64-slice CT scanner. 3D geometries were created following routine segmentation and anatomical measurements taken from standardised bony landmarks. Read More

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Comparison of Patellofemoral-Specific Clinical and Radiographic Results after Total Knee Arthroplasty Using a Patellofemoral Design-Modified Prosthesis and Its Predecessor.

Clin Orthop Surg 2021 Jun 2;13(2):175-184. Epub 2021 Feb 2.

Department of Orthopaedic Surgery, Kyung Hee University College of Medicine, Seoul, Korea.

Backgroud: One recently developed total knee arthroplasty (TKA) prosthesis was designed to alter the patellofemoral geometry and optimize patellar tracking compared to its predecessor. Despite an expectation that the improved design would contribute to optimal patellofemoral compatibility, its effect has not been confirmed with patellofemoral-specific clinical scoring systems and radiographic parameters. Our purpose was to compare patellofemoral-specific clinical and radiographic results after TKA using a patellofemoral design-modified prosthesis and its predecessor. Read More

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Trunk, Hip and Knee Exercise Programs for Pain Relief, Functional Performance and Muscle Strength in Patellofemoral Pain: Systematic Review and Meta-Analysis.

J Pain Res 2021 26;14:1431-1449. Epub 2021 May 26.

Department of Kinesiology, Faculty of Health Sciences, University of Primorska, Izola, Slovenia.

Objective: Previous research suggests that muscle strength exercise is the most effective rehabilitation methods in patients with patellofemoral pain (PFP). This systematic review with meta-analysis compared the effects of Hip&Knee, Hip-only and Knee-only exercise programs on pain relief, muscle strength, and functional performance in patients with PFP.

Methods: Literature searches of PubMed, PEDro and CINAHL databases revealed twenty-one studies included in the final descriptive review, thirteen of which were included in the meta-analysis. Read More

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Prevalence of ultrasound-detected knee synovial abnormalities in a middle-aged and older general population-the Xiangya Osteoarthritis Study.

Arthritis Res Ther 2021 Jun 2;23(1):156. Epub 2021 Jun 2.

Department of Orthopaedics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China.

Background: There is paucity of data on the prevalence of ultrasound-detected synovial abnormalities in the general population, and the relationship between synovial changes and knee pain remains unclear. We examined the prevalence of synovial abnormalities on ultrasound and the relationship of these features with knee pain and radiographic osteoarthritis (ROA) in a community sample.

Methods: Participants aged 50 years or over were from the Xiangya Osteoarthritis Study, a community-based cohort study. Read More

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Cross-cultural translation and validation of the Spanish version of the patellofemoral pain and osteoarthritis subscale of the KOOS (KOOS-PF).

BMC Res Notes 2021 Jun 2;14(1):220. Epub 2021 Jun 2.

Centro de Investigaciones Clínicas, Fundación Valle del Lili, Cra 98 # 18 - 49, 760032, Cali, Colombia.

Objective: The aim of this study was to translate to Spanish the patellofemoral pain and osteoarthritis subscale of the knee injury and osteoarthritis outcome score (KOOS-PF) and validate this Spanish version of a disease-specific patient-reported outcome measure (PROM) for patellofemoral pain.

Results: The KOOS-PF was translated to Spanish and sixty patients with patellofemoral pain and/or osteoarthritis accepted to complete the questionnaire. 1-week later 58 patients answered the questions again for the test-retest reliability validation and finally 55 patients completed 1-month later for the responsiveness assessment. Read More

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Change of tibial tuberosity-trochlear groove (TT-TG) distance during total knee arthroplasty had no influence on clinical outcome and anterior knee pain.

Int Orthop 2021 Jun 1. Epub 2021 Jun 1.

Department of Orthopaedic Surgery and Traumatology, Kantonsspital Baselland (Bruderholz, Liestal, Laufen), CH-4101, Bruderholz, Switzerland.

Purpose: The main purpose of this study was to determine whether there is a correlation between the change of tibial tuberosity-trochlear groove (TT-TG) distance and clinical outcomes after total knee arthroplasty (TKA).

Methods: A total of 52 knees undergoing TKA due to primary osteoarthritis were included in this retrospective study. All patients had pre- and postoperative CT scans. Read More

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Complications and Recurrence of Patellar Instability after Medial Patellofemoral Ligament Reconstruction in Children and Adolescents: A Systematic Review.

Children (Basel) 2021 May 21;8(6). Epub 2021 May 21.

IRCCS Istituto Ortopedico Galeazzi, Via Galeazzi 4, 20161 Milan, Italy.

Background: This study aimed to review the data available in the current literature concerning the complications and recurrence of instability following medial patellofemoral ligament (MPFL) reconstruction for patellar instability in young and adolescent patients (those <20 years old).

Methods: A systematic review was performed based on the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. Two independent reviewers searched the PubMed, Scopus, EMBASE, and Cochrane databases. Read More

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JOSPT Infographic: Diagnosing and Treating Patellofemoral Pain.


J Orthop Sports Phys Ther 2021 06;51(6):316

This JOSPT Infographic on the diagnosis and treatment of patellofemoral pain is based on clinical practice guidelines by Willy et al titled "Patellofemoral Pain" (J Orthop Sports Phys Ther 2019;49(9):CPG1-CPG95. https://doi.org/10. Read More

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JOSPT Infographics: When a Picture Tells Far More Than a Thousand Words.

J Orthop Sports Phys Ther 2021 06;51(6):262-263

We are excited to introduce JOSPT infographics as a way of helping clinicians and patients efficiently and effectively translate the information from a JOSPT article to your clinical context. Infographics do not replace a published article-they supplement the content. Our goal is to share a powerful visual representation of research results with readers to help them share and use the research. Read More

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Patellar Bone-Grafting for Severe Patellar Bone Loss During Revision Total Knee Arthroplasty.

JBJS Essent Surg Tech 2020 Jul-Sep;10(3). Epub 2020 Sep 18.

Mayo Clinic, Rochester, Minnesota.

Background: Treatment of severe patellar bone loss during revision total knee arthroplasty (TKA) is difficult. Patellar bone-grafting is a simple procedure that can improve patient outcomes following revision TKA.

Description: The patient is prepared and draped in the usual sterile fashion. Read More

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September 2020

Running-related Injuries in Middle School Cross Country Runners: Prevalence and characteristics of common injuries.

PM R 2021 May 30. Epub 2021 May 30.

Spaulding Rehabilitation Hospital, Charlestown MA; Harvard Medical School, Boston, MA, USA.

Introduction: Understanding the prevalence and factors associated with running-related injuries in middle school runners may guide injury prevention.

Objective: To determine the prevalence of running-related injuries and describe factors related to a history of injury.

Design: Retrospective cross-sectional study. Read More

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Increased incidence of acute patellar dislocations and patellar instability surgical procedures across the United States in paediatric and adolescent patients.

J Child Orthop 2021 Apr;15(2):149-156

Boston Children's Hospital, Division of Sports Medicine, Department of Orthopaedic Surgery, Boston, MA, US.

Purpose: Patellofemoral instability is a common cause of knee pain and dysfunction in paediatric and adolescent patients. The purpose of the study was to evaluate the frequency of patellar dislocations seen in emergency departments (EDs) and the rates of surgical procedures for patellar instability at paediatric hospitals in the United States between 2004 and 2014.

Methods: The Pediatric Health Information System database was queried for all paediatric patients who underwent surgery for patellar instability or were seen in the ED for acute patellar dislocation between 2004 and 2014. Read More

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Knee flexor strength, rate of torque development and flexibility in women and men with patellofemoral pain: Relationship with pain and the performance in the single leg bridge test.

Phys Ther Sport 2021 Jul 19;50:166-172. Epub 2021 May 19.

Laboratory of Biomechanics and Motor Control (LABCOM), School of Science and Technology, Sao Paulo State University (UNESP), Presidente Prudente, Sao Paulo, Brazil. Electronic address:

Objectives: To investigate the relationship between: (1) knee flexor strength, rate of torque development (RTD), and flexibility with pain level; (2) knee flexor strength and RTD with the performance in the single leg bridge test (SLBT) in women and men with patellofemoral pain (PFP).

Design: Cross-sectional.

Setting: Laboratory-based study. Read More

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The role of viscosupplementation in patellar chondropathy.

Ther Adv Musculoskelet Dis 2021 13;13:1759720X211015005. Epub 2021 May 13.

Knee Surgery Division, Instituto de Ortopedia e Traumatologia, Hospital das clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.

Patellar chondropathy has a high incidence in the general population, being more common in patients younger than 50 years, female and recreational athletes, and overweight and obese patients. The most common complaints are pain, limited mobility, crepitus, difficulty climbing and descending stairs, and joint instability, usually showing unsatisfactory results with anti-inflammatory, physiotherapy, rehabilitation, and many other conservative treatment methods. The presumed hyaluronic acid (HA) disease-modifying activity may include effects on cartilage degradation, endogenous HA synthesis, synoviocyte and chondrocyte function, and other cellular inflammatory processes. Read More

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Age at surgery is correlated with pain scores following trochlear osteotomy in lateral patellar instability: a cross-sectional study of 113 cases.

J Orthop Surg Res 2021 May 25;16(1):337. Epub 2021 May 25.

Department of Orthopaedic Surgery, Radboudumc, PO Box 9101, 6500, HB, Nijmegen, the Netherlands.

Background: A trochlear osteotomy aims to restore patellar stability in patients with recurrent patellar instability and trochlear dysplasia. The age of patients at time of surgery could be a relevant factor which influences outcome. We hypothesized that lower age at time of surgery is associated with better patient-reported outcomes. Read More

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An exploration of normative values in New Zealand to inform the Targeted Interventions for Patellofemoral Pain approach.

Musculoskelet Sci Pract 2021 Aug 14;54:102399. Epub 2021 May 14.

Allied Health Research Unit, Faculty of Allied Health and Well-being University of Central Lancashire, United Kingdom. Electronic address:

Background: The Targeted Interventions for Patellofemoral Pain studies (TIPPs) have identified three subgroups exist in United Kingdom and Turkish patellofemoral pain (PFP) populations: Strong; Weak and Tight; and Weak and Pronated, based on six clinical assessments. The thresholds used to develop the subgrouping algorithms were based on normative values sourced from various populations and countries.

Objectives: Explore normative scores from the clinical assessments in a singular non-PFP population whilst considering potential differences between ethnicities and sex (primary aim). Read More

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Closed-wedge Patelloplasty for the Treatment of Distal Patellofemoral Maltracking and Instability due to Severe Patellar Dysplasia: Case Report and Surgical Technique.

Strategies Trauma Limb Reconstr 2020 Sep-Dec;15(3):184-192

Department of Trauma and Orthopaedic Surgery, Sports Traumatology, BG Hospital Hamburg, Hamburg, Germany; Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.

Background: Patellofemoral maltracking is caused by different anatomical factors. Most of them are associated with a proximal maltracking, which alters the patella's engagement into the trochlear groove and predisposes the patellofemoral joint for instability. Different surgical techniques have been described to realign patellar tracking, however, most of which address proximal patellar maltracking. Read More

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Short foot exercises have additional effects on knee pain, foot biomechanics, and lower extremity muscle strength in patients with patellofemoral pain.

J Back Musculoskelet Rehabil 2021 May 14. Epub 2021 May 14.

Department of Physical Therapy and Rehabilitation, Faculty of Health Sciences, Lokman Hekim University, Ankara, Turkey.

Background: Patellofemoral pain (PFP) is a common knee problem. The foot posture in a relaxed stance is reported as a distal factor of PFP. However, the effects of short foot exercise (SFE) on the knee and functional factors have not yet been investigated in patients with PFP. Read More

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Validation of the cultural adaptation of the Kujala score in Arabic.

J Orthop Surg Res 2021 May 19;16(1):323. Epub 2021 May 19.

Department of Internal Medicine, School of Medicine, University of Jordan, Queen Rania Street, Amman, 11942, Jordan.

Background: Patellofemoral pain is a common condition. The Kujala score is a well-established scoring system to assess anterior knee pain and has been translated into many languages including Arabic. The purpose of this cross-sectional study is to culturally adapt the Arabic version of the Kujala score and determine its validity. Read More

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