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Glaviano NR, Kim S. Lower extremity muscle volume in females with patellofemoral pain and its relationships to hip and knee torque: A cross-sectional study. Phys Ther Sport 2023; 63:50-57. [PMID: 37506654 DOI: 10.1016/j.ptsp.2023.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
OBJECTIVES Compare lower extremity muscle volume in females with patellofemoral pain (PFP) to a cohort of pain-free females and investigate the relationship between thigh and hip muscle volume and torque. DESIGN Cross-sectional. PARTICIPANTS Twenty-one females, 13 with PFP and 8 pain-free controls. MAIN OUTCOME MEASURES We quantified normalized lower extremity muscle volume (cm3/kg*m) via magnetic resonance imaging and isometric hip and thigh torque (Nm/kg) via a multimodal dynamometer. RESULTS Versus pain-free individuals, females with PFP had smaller muscle volume of the anterior hip (P < 0.019; d = 0.97-2.42), deep external rotators (P < 0.006; d = 1.0-3.93), hamstrings (P < 0.009; d = 1.09-2.12), rectus femoris (P < 0.001; d = 1.79), and vastus intermedius (P < 0.001; d = 1.88). There was no difference in muscle volume of the gluteus maximus (P = 0.311; d = 0.22), gluteus medius (P = 0.087; d = 0.87), vastus lateralis (P = 0.22; d = 0.39), and vastus medialis (P = 0.47; d = 0.04). Gluteus maximus volume was moderately correlated to hip abduction torque (r = 0.60; P = 0.03). Vasti muscles and semitendinosus volume were moderately correlated to knee extension (r = 0.57-0.69; P < 0.05) and flexion (r = 0.66; P = 0.01) torque, respectively. CONCLUSION Females with PFP present with lesser thigh and hip muscle volumes, with variability in volumetric profiles across participants. Lower extremity knee extension and hip abduction strength are moderately associated with the vasti and gluteus maximus muscle volume, respectively.
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Affiliation(s)
- Neal R Glaviano
- Department of Kinesiology, College of Agriculture, Health, and Natural Resources, University of Connecticut, Storrs, CT, USA; Institute for Sports Medicine, University of Connecticut, Storrs, CT, USA.
| | - Sungwan Kim
- Department of Kinesiology, College of Agriculture, Health, and Natural Resources, University of Connecticut, Storrs, CT, USA; Institute for Sports Medicine, University of Connecticut, Storrs, CT, USA
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Wang B, Mao Z, Guo J, Yang J, Zhang S. The non-invasive evaluation technique of patellofemoral joint stress: a systematic literature review. Front Bioeng Biotechnol 2023; 11:1197014. [PMID: 37456733 PMCID: PMC10343958 DOI: 10.3389/fbioe.2023.1197014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 06/20/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction: Patellofemoral joint stress (PFJS) is an important parameter for understanding the mechanism of patellofemoral joint pain, preventing patellofemoral joint injury, and evaluating the therapeutic efficacy of PFP rehabilitation programs. The purpose of this systematic review was to identify and categorize the non-invasive technique to evaluate the PFJS. Methods: Literature searches were conducted from January 2000 to October 2022 in electronic databases, namely, PubMed, Web of Science, and EBSCO (Medline, SPORTDiscus). This review includes studies that evaluated the patellofemoral joint reaction force (PJRF) or PFJS, with participants including both healthy individuals and those with patellofemoral joint pain, as well as cadavers with no organic changes. The study design includes cross-sectional studies, case-control studies, and randomized controlled trials. The JBI quality appraisal criteria tool was used to assess the risk of bias in the included studies. Results: In total, 5016 articles were identified in the database research and the citation network, and 69 studies were included in the review. Discussion: Researchers are still working to improve the accuracy of evaluation for PFJS by using a personalized model and optimizing quadriceps muscle strength calculations. In theory, the evaluation method of combining advanced computational and biplane fluoroscopy techniques has high accuracy in evaluating PFJS. The method should be further developed to establish the "gold standard" for PFJS evaluation. In practical applications, selecting appropriate methods and approaches based on theoretical considerations and ecological validity is essential.
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Zhang M, Zhou X, Zhang L, Liu H, Yu B. The effect of heel-to-toe drop of running shoes on patellofemoral joint stress during running. Gait Posture 2022; 93:230-234. [PMID: 35183841 DOI: 10.1016/j.gaitpost.2022.02.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 01/09/2022] [Accepted: 02/12/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Traditional running shoes with heel-to-toe drops is thought to be a contributor to increased patellofemoral joint stress, which is proposed as a mechanism of patellofemoral pain. RESEARCH QUESTION Is there an increase in patellofemoral joint stress when running in shoes with drops compared to running in shoes without a drop? METHODS Lower limbs kinematics and ground reaction force were collected from eighteen healthy runners during over-ground running in shoes with 15 mm, 10 mm, 5 mm drops, and without a drop. Patellofemoral joint force and stress were calculated from the kinematic and kinetic data using a biomechanical model of the patellofemoral joint. RESULTS The peak patellofemoral joint stress was increased by more than 15% when running in shoes with 15 mm and 10 mm drops compared to running in shoes without a drop (p = 0.003, p = 0.001). The knee flexion angle was significantly increased when running in shoes with 15 mm, 10 mm and 5 mm drops (p = 0.014, p = 0.003, p = 0.002), the knee extension moment (p = 0.009, p = 0.002) and patellofemoral joint force (p = 0.003, p = 0.001) were increased when running in shoes with 15 mm and 10 mm drops, compared to running in shoes without a drop. SIGNIFICANCE Compared to running in shoes without a drop, running in shoes with drops > 5 mm increase the peak patellofemoral joint stress significantly, which is mainly due to the increased knee extension moment.
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Affiliation(s)
- Masen Zhang
- Biomechanics Laboratory, School of Sport Science, Beijing Sport University, Beijing, China
| | - Xinglong Zhou
- Biomechanics Laboratory, School of Sport Science, Beijing Sport University, Beijing, China
| | - Liwen Zhang
- Biomechanics Laboratory, School of Sport Science, Beijing Sport University, Beijing, China
| | - Hui Liu
- China Institute of Sport and Health Science, Beijing Sport University, Beijing, China.
| | - Bing Yu
- Center for Human Movement Science, Division of Physical Therapy, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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Phillips R, Choo S, Nuelle CW. Bracing for the Patellofemoral Joint. J Knee Surg 2022; 35:232-241. [PMID: 35088399 DOI: 10.1055/s-0041-1741429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Patellofemoral disorders are common causes of knee pain that result in frequent visitations to musculoskeletal care clinics. Patellar tendinopathy, patellar instability and patellar maltracking, and pain are some of the most common pathologies resulting in patellofemoral dysfunction. For each of these diagnoses, there are unique orthoses and braces available, some of which are uniquely designed to address the pathology involved. While the spectrum of patellofemoral disorders is wide ranging and can often be challenging to treat, bracing frequently plays a large role in the overall treatment algorithm. In this article, we summarized the current literature and treatment recommendations related to the most common types of patellar braces. We performed a thorough review of randomized controlled trials and up to date literature to reach well-informed conclusions on current best practice regarding the uses of patellar braces for patellofemoral disorders.
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Affiliation(s)
- Rachel Phillips
- Department of Orthopedic Surgery, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri.,Thompson Laboratory for Regenerative Orthopaedics, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri
| | - Stephanie Choo
- Department of Orthopedic Surgery, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri
| | - Clayton W Nuelle
- Department of Orthopedic Surgery, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri
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Farazdaghi M, Razeghi M, Sobhani S, Raeisi-Shahraki H, Alipour Haghighi M, Farazdaghi M, Motealleh A. Knee impairments: Comparison between new clinical classification by cluster analysis and movement system impairment model. J Bodyw Mov Ther 2022; 30:210-220. [DOI: 10.1016/j.jbmt.2022.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/14/2021] [Accepted: 02/04/2022] [Indexed: 11/26/2022]
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Gluteal Central Activation in Females With Patellofemoral Pain: A Preliminary Study. J Sport Rehabil 2021; 31:676-683. [PMID: 34883467 DOI: 10.1123/jsr.2021-0093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 09/14/2021] [Accepted: 09/26/2021] [Indexed: 11/18/2022]
Abstract
CONTEXT Lesser hip muscle strength is commonly observed in females with patellofemoral pain (PFP) compared with females without PFP and is associated with poor subjective function and single-leg squat (SLS) biomechanics. Hip muscle weakness is theorized to be related to PFP, suggesting centrally mediated muscle inhibition may influence the observed weakness. The central activation ratio (CAR) is a common metric used to quantify muscle inhibition via burst superimposition. However, gluteal inhibition has yet to be evaluated using this approach in females with PFP. The study objectives are to (1) describe gluteal activation in the context of subjective function, hip strength, and squatting biomechanics and (2) examine the relationship of gluteal activation with subjective function and squatting biomechanics in females with PFP. DESIGN Cross-sectional. METHODS Seven females with PFP (age = 22.8 [3.6] y; mass = 69.4 [18.0] kg; height = 1.67 [0.05] m, duration of pain = 6-96 mo) completed this study. Subjective function was assessed with the Anterior Knee Pain Scale, while fear-avoidance beliefs were assessed with the Fear-Avoidance Belief Questionnaire physical activity and work subscales. Biomechanical function was assessed with peak hip and knee angles and moments in the sagittal and frontal planes during SLS. Gluteus medius (GMed) and gluteus maximus (GMax) activation were assessed with the CAR. Descriptive statistics were calculated, and relationships between variables were assessed with Spearman rho correlations. RESULTS The CAR of GMed and GMax was 90.5% (8.1%) and 84.0% (6.3%), respectively. Lesser GMed CAR was strongly associated with greater hip adduction during SLS (ρ = -.775, P = .02) and greater fear-avoidance beliefs-physical activity subscale (ρ = -.764, P = .018). CONCLUSION We found a wide range in GMed and GMax activation across females with PFP. Lesser GMed activation was associated with greater hip adduction during SLS and fear of physical activity, suggesting that gluteal inhibition should be assessed in patients with PFP.
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Kısacık P, Tunay VB, Bek N, Atay ÖA, Selfe J, Karaduman AA. 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; 34:1093-1104. [PMID: 34024814 DOI: 10.3233/bmr-200255] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
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. OBJECTIVE This study aimed to investigate the additional effects of SFE on knee pain, foot biomechanics, and lower extremity muscle strength in patients with PFP following a standard exercise program. METHODS Thirty patients with a 'weak and pronated' foot subgroup of PFP were randomized into a control group (ConG, n= 15) and a short foot exercise group (SFEG, n= 15) with concealed allocation and blinded to the group assignment. The program of ConG consisted of hip and knee strengthening and stretching exercises. SFEG program consisted of additional SFE. Both groups performed the supervised training protocol two times per week for 6 weeks. Assessment measures were pain visual analog scale (pVAS), Kujala Patellofemoral Score (KPS), navicular drop test (NDT), rearfoot angle (RA), foot posture index (FPI), and strength tests of the lower extremity muscles. RESULTS Both groups displayed decreases in pVAS scores, but it was only significant in favor of SFEG. NDT, RA, and FPI scores decreased in SFEG whereas they increased in ConG. There was a significant group-by-time interaction effect in hip extensor strength and between-group difference was found to be significantly in favor of SFEG. CONCLUSIONS An intervention program consisting of additional SFE had positive effects on knee pain, navicular position, and rearfoot posture. An increase in the strength of the hip extensors may also be associated with improved stabilization by SFE.
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Affiliation(s)
- Pınar Kısacık
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Volga Bayrakcı Tunay
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Nilgün Bek
- Department of Physical Therapy and Rehabilitation, Faculty of Health Sciences, Lokman Hekim University, Ankara, Turkey
| | - Özgür Ahmet Atay
- Department of Orthopedics and Traumatology, Faculty of Medicine, Hacettepe University Ankara, Ankara, Turkey
| | - James Selfe
- Department of Health Professions, Faculty of Health, Manchester Metropolitan University, Manchester, UK
| | - Aynur Ayşe Karaduman
- Department of Physical Therapy and Rehabilitation, Faculty of Health Sciences, Lokman Hekim University, Ankara, Turkey
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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; 54:102399. [PMID: 34034123 DOI: 10.1016/j.msksp.2021.102399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 03/30/2021] [Accepted: 05/10/2021] [Indexed: 11/22/2022]
Abstract
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). Revisit inter-rater reliability of each assessment (secondary aim). DESIGN Cross-sectional and test-retest. METHOD The six assessments; rectus femoris length, gastrocnemius length, patellar mobility, hip abductor strength, quadriceps strength, and Foot Posture index (FPI) were measured in 89 New Zealanders (34% Māori, 45% female). Two raters independently assessed 17 participants to examine inter-rater reliability. RESULTS Significant interactions between ethnic group and sex were noted for rectus femoris length and patella mobility. Māori versus European males exhibited greater rectus femoris tightness (p = 0.001). Māori versus European females demonstrated greater patellar mobility (p = 0.002). Females were significantly weaker than males in normalised strength measures (p < 0.001), and had lower FPIs. Mean differences between testers for all measures were small and not significant, except for FPI which had a 2.0 point median difference (p = 0.021). CONCLUSIONS Our results indicate that sex is an important factor worth considering within the TIPPs subgrouping approach, more than ethnicity, especially for the normalised strength measures. The sub-optimal reliability of FPI warrant reconsideration of its inclusion within TIPPs.
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Greaves H, Comfort P, Liu A, Lee Herrington, Richard Jones. How effective is an evidence-based exercise intervention in individuals with patellofemoral pain? Phys Ther Sport 2021; 51:92-101. [PMID: 34303900 DOI: 10.1016/j.ptsp.2021.05.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 05/12/2021] [Accepted: 05/28/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Guidelines for a comprehensive rehabilitation programme for patellofemoral pain (PFP) have been developed by international experts. The aim of this study was to analyse the effect of such a rehabilitative exercise programme on pain, function, kinesiophobia, running biomechanics, quadriceps strength and quadriceps muscle inhibition in individuals with PFP. DESIGN Observational study. SETTING Clinical environment. PARTICIPANTS Twenty-seven participants with PFP. MAIN OUTCOME MEASURES Symptoms [numeric pain rating scale (NPRS)and the pain subscale of the Knee Injury and Osteoarthritis Outcome Score (KOOS)], function measured by using the KUJALA scale and KOOS, kinesiophobia measured by using the Tampa scale, three-dimensional biomechanical running data, quadriceps isometric, concentric and eccentric strength and arthrogenic muscle inhibition (AMI) were acquired before and after the six-week exercise programme. RESULTS Although pain did not significantly improve all patients were pain-free after the six-week exercise programme (NPRS: p = 0.074). Function, kinesiophobia and quadriceps AMI improved significantly after the six-week exercise programme (KUJALA: p = 0.001, KOOS: p = 0.0001, Tampa: p = 0.017, AMI: p = 0.018). Running biomechanics during stance phase did not change after the exercise intervention. Quadriceps strength was not different after the six-week exercise programme (isometric: p = 0.992, concentric: p = 0.075, eccentric: p = 0.351). CONCLUSION The results of this study demonstrate that the current exercise recommendations can improve function and kinesiophobia and reduce pain and AMI in individuals with PFP. There is a need for reconsideration of the current exercise guidelines in stronger individuals with PFP.
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Affiliation(s)
- Henrike Greaves
- School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK.
| | - Paul Comfort
- School of Health and Society, University of Salford, Salford, UK.
| | - Anmin Liu
- School of Health and Society, University of Salford, Salford, UK.
| | - Lee Herrington
- School of Health and Society, University of Salford, Salford, UK.
| | - Richard Jones
- School of Health and Society, University of Salford, Salford, UK.
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Rund JM, Hinckel BB, Sherman SL. Acute Patellofemoral Dislocation: Controversial Decision-Making. Curr Rev Musculoskelet Med 2021; 14:82-87. [PMID: 33523411 DOI: 10.1007/s12178-020-09687-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/17/2020] [Indexed: 12/30/2022]
Abstract
PURPOSE OF REVIEW The topic of acute patella dislocations is controversial. Discussions revolve around which individuals need early surgery, identification of risk factors, and rehabilitation protocol. The purpose of this review is to discuss the current recommendations for non-operative and/or operative management of first-time dislocators. RECENT FINDINGS Recent studies have made it clear that not all patellar dislocations are the same, not all patients do well with conservative treatment, and risk stratification can identify individuals at high risk of recurrence who would benefit from early surgical intervention. Risk factors that have been identified include younger age, skeletally immature, contralateral instability, trochlear dysplasia, patella alta, increased tibial tubercle-trochlear groove distance, and increased patella tilt. The PAPI (Pediatric and Adolescent Patellar Instability) RCT study and JUPITER (Justifying Patellar Instability Treatment by Early Results) prospective cohort study have been carefully developed, are under way, and will provide further guidance. In summary, the management of acute patellar dislocations is evolving. Surgery for patients with osteochondral loose bodies should include fixation as well as soft tissue stabilization. The standard of care for patients with an acute patellar dislocation without osteochondral loose bodies or fracture is non-operative treatment. However, imaging for all first-time dislocators is indicated to stratify risks and determine risk profile. If an individual is at high risk, soft tissue stabilization may be considered. Still, most patients will be treated non-operatively.
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Affiliation(s)
- Joseph M Rund
- School of Medicine, University of Missouri, Columbia, MO, USA
| | - Betina B Hinckel
- Oakland University, Rochester, MI, USA
- Department of Orthopaedic Surgery, William Beaumont Hospital, Royal Oak, MI, USA
| | - Seth L Sherman
- Department of Orthopaedic Surgery, Stanford University, Palo Alto, CA, USA.
- , Redwood City, USA.
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Ophey MJ, Crooijmans GAHM, Frieling SMW, Kardos DMA, van den Berg R, Kerkhoffs GMMJ, Tak IJR. Short-term effectiveness of an intervention targeting lower limb range of motion on pain and disability in patellofemoral pain patients: A randomized, non-concurrent multiple-baseline study. J Bodyw Mov Ther 2020; 26:300-308. [PMID: 33992263 DOI: 10.1016/j.jbmt.2020.12.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 10/03/2020] [Accepted: 12/19/2020] [Indexed: 01/10/2023]
Abstract
INTRODUCTION Patellofemoral pain (PFP) is a common and often long-standing musculoskeletal condition. Evidence of the effectiveness of interventions addressing soft tissue flexibility is conflicting and of inconsistent scientific quality. However, reduced soft tissue flexibility can negatively affect patellofemoral joint kinematics. Lower limb range of motion (LLROM) reflects soft tissue flexibility throughout the kinetic chain. The aim was to evaluate the short-term effectiveness of an intervention targeting LLROM on pain and disability in patients with PFP. METHODS A randomized, non-concurrent, multiple-baseline single-case design with a two-week intervention phase and baseline and postintervention phase with varying length was conducted. Eight participants (5 females, 3 males) of age 19(±1.6) years, weekly sports participation 12(±3.1) hours and 17(±14) months symptom duration were included. The Anterior Knee Pain Scale - Dutch Version (AKPS-DV) and the Patient Specific Complaint Scale (PSCS) were administered twice a week. After allocating participants to one of four subgroups of reduced LLROM the intervention was applied. The intervention consisted of soft tissue techniques (mobilization, taping, and stretching). RESULTS Participant 3 and 6 showed a medium and small but statistically significant positive effect on the AKPS-DV. Participant 2 showed a large and statistically significant positive effect on the PSCS. CONCLUSIONS This study provides moderate evidence that an intervention targeting LLROM in patients with PFP reduces pain and disability in the short-term. Further research is needed to evaluate the long-term effectiveness and optimize individual treatment outcomes.
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Affiliation(s)
- Martin J Ophey
- IJsveldFysio - Private Physical Therapy Clinic, Nijmegen, the Netherlands; Department of Orthopedic Surgery, Amsterdam Movement Sciences, Amsterdam University Medical Centers, Amsterdam, the Netherlands; ESP Science and Education, Vienna, Austria.
| | - Gwen A H M Crooijmans
- HAN - University of Applied Sciences, Physical Therapy Department, Nijmegen, the Netherlands
| | - Sophie M W Frieling
- HAN - University of Applied Sciences, Physical Therapy Department, Nijmegen, the Netherlands
| | - Donja M A Kardos
- HAN - University of Applied Sciences, Physical Therapy Department, Nijmegen, the Netherlands
| | - Robert van den Berg
- ESP Science and Education, Vienna, Austria; FH Burgenland - University of Applied Science, Physical Therapy Department, Pinkafeld, Austria; AIM - Austrian Institute of Management, Advanced Physiotherapy & Management, Eisenstadt, Austria
| | - Gino M M J Kerkhoffs
- Department of Orthopedic Surgery, Amsterdam Movement Sciences, Amsterdam University Medical Centers, Amsterdam, the Netherlands; Physiotherapy Utrecht Oost - Sports Rehabilitation and Manual Therapy, Utrecht, the Netherlands; Amsterdam Collaboration on Health and Safety in Sports (ACHSS) / IOC Research Center of Excellence, Amsterdam, the Netherlands; Center for Evidence Based Sports Medicine (ACES), Amsterdam, the Netherlands
| | - Igor J R Tak
- ESP Science and Education, Vienna, Austria; Physiotherapy Utrecht Oost - Sports Rehabilitation and Manual Therapy, Utrecht, the Netherlands; Amsterdam Collaboration on Health and Safety in Sports (ACHSS) / IOC Research Center of Excellence, Amsterdam, the Netherlands; Center for Evidence Based Sports Medicine (ACES), Amsterdam, the Netherlands
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Yosmaoğlu HB, Selfe J, Sonmezer E, Sahin İE, Duygu SÇ, Acar Ozkoslu M, Richards J, Janssen J. Targeted Treatment Protocol in Patellofemoral Pain: Does Treatment Designed According to Subgroups Improve Clinical Outcomes in Patients Unresponsive to Multimodal Treatment? Sports Health 2019; 12:170-180. [PMID: 31750786 DOI: 10.1177/1941738119883272] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Targeted intervention for subgroups is a promising approach for the management of patellofemoral pain. HYPOTHESIS Treatment designed according to subgroups will improve clinical outcomes in patients unresponsive to multimodal treatment. STUDY DESIGN Prospective crossover intervention. LEVEL OF EVIDENCE Level 3. METHODS Patients with patellofemoral pain (PFP; n = 61; mean age, 27 ± 9 years) were enrolled. Patients with PFP received standard multimodal treatment 3 times a week for 6 weeks. Patients not responding to multimodal treatment were then classified into 1 of 3 subgroups (strong, weak and tight, and weak and pronated foot) using 6 simple clinical tests. They were subsequently administered 6 further weeks of targeted intervention, designed according to subgroup characteristics. Visual analog scale (VAS), perception of recovery scale (PRS), 5-Level European Quality 5 Dimensions (EQ-5D-5L), and self-reported version of the Leeds Assessment of Neuropathic Symptoms and Signs scale (S-LANSS) were used to assess pain, knee function, and quality of life before and after the interventions. RESULTS In total, 34% (n = 21) of patients demonstrated recovery after multimodal treatment. However, over 70% (n = 29/40) of nonresponders demonstrated recovery after targeted treatment. The VAS, PRS, S-LANSS, and EQ-5D-5L scores improved significantly after targeted intervention compared with after multimodal treatment (P < 0.001). The VAS score at rest was significantly lower in the "weak and pronated foot" and the "weak and tight" subgroups (P = 0.011 and P = 0.008, respectively). Posttreatment pain intensity on activity was significantly lower in the "strong" subgroup (P = 0.006). CONCLUSION Targeted treatment designed according to subgroup characteristics improves clinical outcomes in patients unresponsive to multimodal treatment. CLINICAL RELEVANCE Targeted intervention could be easily implemented after 6 simple clinical assessment tests to subgroup patients into 1 of 3 subgroups (strong, weak and tight, and weak and pronated foot). Targeted interventions applied according to the characteristics of these subgroups have more beneficial treatment effects than a current multimodal treatment program.
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Affiliation(s)
- Hayri Baran Yosmaoğlu
- Department of Physiotherapy and Rehabilitation, Faculty of Health Science, Baskent University, Ankara, Turkey
| | - James Selfe
- Department of Health Professions, Faculty of Health, Psychology and Social Care, Manchester Metropolitan University, Manchester, UK
| | - Emel Sonmezer
- Department of Physiotherapy and Rehabilitation, Faculty of Health Science, Baskent University, Ankara, Turkey
| | - İlknur Ezgi Sahin
- Department of Physiotherapy and Rehabilitation, Faculty of Health Science, Baskent University, Ankara, Turkey
| | - Senay Çerezci Duygu
- Department of Physiotherapy and Rehabilitation, Faculty of Health Science, Baskent University, Ankara, Turkey
| | - Manolya Acar Ozkoslu
- Department of Physiotherapy and Rehabilitation, Faculty of Health Science, Baskent University, Ankara, Turkey
| | - Jim Richards
- Allied Health Research Unit, School of Health Sciences, University of Central Lancashire, Preston, UK
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Abstract
Patellofemoral pain (PFP) is a common musculoskeletal-related condition that is characterized by insidious onset of poorly defined pain, localized to the anterior retropatellar and/or peripatellar region of the knee. The onset of symptoms can be slow or acutely develop with a worsening of pain accompanying lower-limb loading activities (eg, squatting, prolonged sitting, ascending/descending stairs, jumping, or running). Symptoms can restrict participation in physical activity, sports, and work, as well as recur and persist for years. This clinical practice guideline will allow physical therapists and other rehabilitation specialists to stay up to date with evolving PFP knowledge and practices, and help them to make evidence-based treatment decisions. J Orthop Sports Phys Ther. 2019;49(9):CPG1-CPG95. doi:10.2519/jospt.2019.0302.
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Toward the Development of Data-Driven Diagnostic Subgroups for People With Patellofemoral Pain Using Modifiable Clinical, Biomechanical, and Imaging Features. J Orthop Sports Phys Ther 2019; 49:536-547. [PMID: 31213159 DOI: 10.2519/jospt.2019.8607] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Unfavorable treatment outcomes for people with patellofemoral pain (PFP) have been attributed to the potential existence of subgroups that respond differently to treatment. OBJECTIVES This study aimed to identify subgroups within PFP by combining modifiable clinical, biomechanical, and imaging features and exploring the prognosis of these subgroups. METHODS This was a longitudinal cohort study, with baseline cluster analyses. Baseline data were analyzed using a 2-stage cluster analysis; 10 features were analyzed within 4 health domains before being combined at the second stage. Prognosis of the subgroups was assessed at 12 months, with subgroup differences reported as global rating of change and analyzed with an exploratory logistic regression adjusted for known confounders. RESULTS Seventy participants were included (mean age, 31 years; 43 [61%] female). Cluster analysis revealed 4 subgroups: "strong," "pronation and malalignment," "weak," and "active and flexible." Descriptively, compared to the strong subgroup (55% favorable), the odds of a favorable outcome were lower in the weak subgroup (31% favorable; adjusted odds ratio [OR] = 0.30; 95% confidence interval [CI]: 0.07, 1.36) and the pronation and malalignment subgroup (50%; OR = 0.64; 95% CI: 0.11, 3.66), and higher in the active and flexible subgroup (63%; OR = 1.24; 95% CI: 0.20, 7.51). After adjustment, compared to the strong subgroup, differences between some subgroups remained substantive, but none were statistically significant. CONCLUSION In this relatively small cohort, 4 PFP subgroups were identified that show potentially different outcomes at 12 months. Further research is required to determine whether a stratified treatment approach using these subgroups would improve outcomes for people with PFP. LEVEL OF EVIDENCE Diagnosis, level 2b. J Orthop Sports Phys Ther 2019;49(7):536-547. doi:10.2519/jospt.2019.8607.
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Glaviano NR, Marshall AN, Mangum LC, Hart JM, Hertel J, Russell S, Saliba SA. Impairment-Based Rehabilitation With Patterned Electrical Neuromuscular Stimulation and Lower Extremity Function in Individuals With Patellofemoral Pain: A Preliminary Study. J Athl Train 2019; 54:255-269. [PMID: 30721093 DOI: 10.4085/1062-6050-490-17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
CONTEXT Patellofemoral pain (PFP) is a chronic condition that presents with lower extremity muscle weakness, decreased flexibility, subjective functional limitations, pain, and decreased physical activity. Patterned electrical neuromuscular stimulation (PENS) has been shown to affect muscle activation and pain after a single treatment, but its use has not been studied in a rehabilitation trial. OBJECTIVE To determine the effects of a 4-week impairment-based rehabilitation program using PENS on subjective function, pain, strength, range of motion, and physical activity in individuals with PFP. DESIGN Randomized controlled trial. SETTING Laboratory. PATIENTS OR OTHER PARTICIPANTS A total of 21 patients with PFP (5 males, 16 females; age = 23.4 ± 7.6 years, height = 168.0 ± 7.5 cm, mass = 69.0 ± 19.5 kg). INTERVENTION(S) Participants completed a 4-week supervised rehabilitation program in conjunction with random assignment to receive PENS or sham treatments. MAIN OUTCOME MEASURE(S) Subjective function, pain, strength, range of motion, and physical activity levels were assessed prerehabilitation and postrehabilitation. Subjective function and pain were also assessed at 6 and 12 months postrehabilitation. Repeated-measures analyses of variance and Tukey post hoc testing were conducted with α ≤ .05. We calculated Cohen d effect sizes with 95% confidence intervals. RESULTS Both groups had statistically and clinically meaningful differences in subjective function, pain, strength, range of motion, and activity level after 4 weeks of impairment-based rehabilitation. Improved subjective function was observed in both groups at 6 and 12 months after the interventions. The PENS group had improvements in current pain for all 3 postrehabilitation times compared with baseline measures. CONCLUSIONS An impairment-based intervention effectively improved subjective function, pain, strength, range of motion, and physical activity levels in individuals with PFP. Participants who received PENS in addition to the rehabilitation program had improved current pain at 6 and 12 months postrehabilitation compared with baseline scores. TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT02441712.
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Affiliation(s)
- Neal R Glaviano
- College of Health and Human Services, School of Exercise and Rehabilitation Sciences, University of Toledo, OH
| | - Ashley N Marshall
- Department of Interdisciplinary Health Sciences, A.T. Still University, Mesa, AZ
| | - L Colby Mangum
- College of Health Professions and Sciences, University of Central Florida, Orlando
| | - Joseph M Hart
- Department of Orthopedic Surgery, University of Virginia, Charlottesville
| | - Jay Hertel
- Department of Orthopedic Surgery, University of Virginia, Charlottesville
| | - Shawn Russell
- Department of Orthopedic Surgery, University of Virginia, Charlottesville
| | - Susan A Saliba
- Department of Kinesiology, University of Virginia, Charlottesville
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Increased Patellar Volume/Width and Decreased Femoral Trochlear Width Are Associated With Adolescent Patellofemoral Pain. Clin Orthop Relat Res 2018; 476:2334-2343. [PMID: 30422967 PMCID: PMC6259899 DOI: 10.1097/corr.0000000000000499] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Patellofemoral pain is one of the most common forms of knee arthralgia in adolescent females. Unlike in adults, in whom the etiology of patellofemoral pain is considered to be multifactorial (eg, altered bone shape and musculoskeletal dynamics), the etiology of adolescent patellofemoral pain has been historically attributed to overuse. Although it is highly plausible that adolescent patellofemoral pain results from excessive maltracking, as suggested by recent research, an increase in patellar, relative to femoral, size could also contribute to patellofemoral pain through altered cartilage stresses/strains, resulting in overloading of the subchondral bone. Because the role of bone morphology in the genesis of patellofemoral pain in adolescent females remains largely unknown, research is needed in this area to improve our understanding of patellofemoral pain and advance diagnosis/treatment. QUESTIONS/PURPOSES (1) Are patellar volume and width increased, and femoral trochlear width decreased, in female adolescents with patellofemoral pain compared with asymptomatic females? (2) Are measures of patellofemoral size correlated with patellofemoral tracking? METHODS Twenty adolescent females with patellofemoral pain (age, 13.7 ± 1.3 years) and 20 asymptomatic female control participants (age, 13.6 ± 1.3 years) were enrolled in this case-control institutional review board-approved study. This study focused on a strict definition of patellofemoral pain, peripatellar pain in the absence of other structural pathologic conditions (eg, tendinitis, ligament injury, Osgood-Schlatter disease) or a history of dislocations/trauma. Control participants with no history of patellofemoral pain or other lower extremity pathology were matched for age (within 6 months) and body mass index (within 5 kg/m). Participants self-referred and were recruited through clinicaltrails.gov, printed advertisements, and word of mouth. Three-dimensional (3-D), static, T1-weighted, gradient recalled echo MR images were acquired, from which 3-D patellofemoral models were created. Patellar volume and width, patellar-to-femoral volume and width ratios, and femoral trochlear width were compared across cohorts. In addition, 3-D patellofemoral tracking was quantified from dynamic MR images captured during cyclical flexion-extension volitional movements of the lower extremity. The size measures and ratios were correlated to patellofemoral tracking. RESULTS Compared with control participants, the cohort with patellofemoral pain had greater patellar volume (13,792 ± 2256 versus 11,930 ± 1902 mm; 95% confidence interval [CI], 1336 mm; p = 0.004; d = 0.89) and width (38.4 ± 3.0 versus 36.5 ± 2.7 mm; 95% CI, 1.8 mm; p = 0.021; d = 0.67). The femoral trochlear width was smaller (32.0 ± 1.8 versus 32.9 ± 1.8 mm; p = 0.043, d = 0.54). The patellar-to-femoral volume ratio and the patellar-to-trochlear width ratio were greater in adolescents with patellofemoral pain (0.15 ± 0.02 versus 0.13 ± 0.01, p = 0.006, d = 0.83 and 1.20 ± 0.09 versus 1.11 ± 0.09, p = 0.001, d = 1.02). No correlations were found between patellar size and patellofemoral tracking (r < 0.375, p > 0.103). CONCLUSIONS In adolescent females with patellofemoral pain, the increased patellar volume/width and patellar-to-trochlear width ratio, along with the decreased femoral trochlear width, may initiate a pathway to pain through improper engagement of the patella within the femoral trochlea. Specifically, the mean differences between cohorts in patellar and femoral trochlear width (1.9 mm and 0.9 mm) are 58% and 37% of the mean patellar and femoral cartilage thickness in females, respectively, as reported in the literature. Further studies are needed to fully elucidate the mechanism of pain. LEVEL OF EVIDENCE Level III, prognostic study.
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Bolgla LA, Boling MC, Mace KL, DiStefano MJ, Fithian DC, Powers CM. National Athletic Trainers' Association Position Statement: Management of Individuals With Patellofemoral Pain. J Athl Train 2018; 53:820-836. [PMID: 30372640 DOI: 10.4085/1062-6050-231-15] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE: To present recommendations for athletic trainers and other health care providers regarding the identification of risk factors for and management of individuals with patellofemoral pain (PFP). BACKGROUND: Patellofemoral pain is one of the most common knee diagnoses; however, this condition continues to be one of the most challenging to manage. Recent evidence has suggested that certain risk factors may contribute to the development of PFP. Early identification of risk factors may allow clinicians to develop and implement programs aimed at reducing the incidence of this condition. To date, clinicians have used various treatment strategies that have not necessarily benefitted all patients. Suboptimal outcomes may reflect the need to integrate clinical practice with scientific evidence to facilitate clinical decision making. RECOMMENDATIONS: The recommendations are based on the best available evidence. They are intended to give athletic trainers and other health care professionals a framework for identifying risk factors for and managing patients with PFP.
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Affiliation(s)
- Lori A Bolgla
- Department of Physical Therapy, Augusta University, GA
| | - Michelle C Boling
- Department of Clinical and Applied Movement Sciences, University of North Florida, Jacksonville
| | | | | | | | - Christopher M Powers
- Department of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles
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Naserpour M, Goharpey S, Saki A, Mohammadi Z. Dynamic postural control during step down task in patients with patellofemoral pain syndrome. J Phys Ther Sci 2018; 30:1289-1292. [PMID: 30349166 PMCID: PMC6181662 DOI: 10.1589/jpts.30.1289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 07/26/2018] [Indexed: 11/24/2022] Open
Abstract
[Purpose] This study aimed to examine the differences in dynamic postural control during forward step down (FSD) task in patients with patellofemoral pain syndrome (PFPS). [Participants and Methods] Sixty-eight participants (34 males and 34 females) were divided into the following 2 groups: 34 PFPS patients (17 males and 17 females) and 34 healthy controls (17 males and 17 females). Each participant performed FSD task from a height of 20 cm. A force platform was used to extract the center of pressure parameters during FSD task for calculation of time to stabilization (TTS) in the anterior-posterior (A/P) and medial-lateral (M/L) direction. [Results] PFPS group took longer time to stabilize than the healthy control group in A/P and M/L directions. A main effect for direction was found, and this indicated that the A/P TTS of 8.43 ± 0.79s was longer than the M/L TTS of 5.56 ± 1.95s in healthy participants and A/P TTS of 9.09 ± 0.82s was longer than the M/L TTS of 7.15 ± 2.11s in PFPS. [Conclusion] These findings suggest that dynamic postural control can be affected in PFPS patients.
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Affiliation(s)
- Mehdi Naserpour
- Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences: Golestan St., Ahvaz 6135733133, Iran
| | - Shahin Goharpey
- Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences: Golestan St., Ahvaz 6135733133, Iran
| | - Amal Saki
- Department of Biostatistics and Epidemiology School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Iran
| | - Zeinab Mohammadi
- Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences: Golestan St., Ahvaz 6135733133, Iran
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The Associations of Vitamin - D Deficiency with Knee Pain and Biomechanical Abnormalities in Young Iranian Patients with Patellofemoral Pain Syndrome: A Case-Control Study. IRANIAN RED CRESCENT MEDICAL JOURNAL 2018. [DOI: 10.5812/ircmj.59364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Targeted Functional Movement Retraining to Improve Pain, Function, and Biomechanics in Subjects With Anterior Knee Pain: A Case Series. J Sport Rehabil 2018; 27:218-223. [PMID: 28338386 DOI: 10.1123/jsr.2016-0164] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
CONTEXT Anterior knee pain (AKP) is a common condition, especially in a young active population. The clinical presentations of this condition vary considerably, and therefore, an individualized approach to treatment is needed. OBJECTIVE The primary objective of this study was to assess the effect of a novel targeted biomechanical intervention on subjects with AKP. DESIGN A case series was conducted on 8 participants with AKP. SETTING The study was conducted at the Tygerberg Motion Analysis Laboratory and Tygerberg Physiotherapy Clinic in Cape Town, South Africa. PARTICIPANTS Eight subjects (5 females and 3 males) diagnosed with AKP were included in this case series. INTERVENTION Participants received a 6-week subject-specific functional movement retraining intervention. MAIN OUTCOME MEASURES Three-dimensional hip, knee, and ankle kinematics were used for analysis for each participant preintervention and postintervention. Pain was measured weekly using the Numeric Pain Rating Scale. Two functional scales (Lower-Extremity Functional Scale and Anterior Knee Pain Scale) were used to assess pain and function the preintervention and postintervention. RESULTS All 8 subjects demonstrated improved pain levels (Numeric Pain Rating Scale) and functional outcomes (Anterior Knee Pain Scale and Lower-Extremity Functional Scale). Seven of the 8 participants (87.7%) demonstrated improvements in their main biomechanical outcome. CONCLUSION A subject-specific functional movement retraining intervention may be successful in the treatment of subjects with AKP presenting with biomechanical risk factors. Research on a larger sample is required to further investigate this approach.
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Gallina A, Hunt MA, Hodges PW, Garland SJ. Vastus Lateralis Motor Unit Firing Rate Is Higher in Women With Patellofemoral Pain. Arch Phys Med Rehabil 2018; 99:907-913. [DOI: 10.1016/j.apmr.2018.01.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 12/08/2017] [Accepted: 01/11/2018] [Indexed: 10/18/2022]
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Selfe J, Janssen J, Callaghan M, Witvrouw E, Sutton C, Richards J, Stokes M, Martin D, Dixon J, Hogarth R, Baltzopoulos V, Ritchie E, Arden N, Dey P. Are there three main subgroups within the patellofemoral pain population? A detailed characterisation study of 127 patients to help develop targeted intervention (TIPPs). Br J Sports Med 2016; 50:873-80. [PMID: 26834185 PMCID: PMC4975826 DOI: 10.1136/bjsports-2015-094792] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2015] [Indexed: 11/04/2022]
Abstract
Background Current multimodal approaches for the management of non-specific patellofemoral pain are not optimal, however, targeted intervention for subgroups could improve patient outcomes. This study explores whether subgrouping of non-specific patellofemoral pain patients, using a series of low cost simple clinical tests, is possible. Method The exclusivity and clinical importance of potential subgroups was assessed by applying à priori test thresholds (1 SD) from seven clinical tests in a sample of adult patients with non-specific patellofemoral pain. Hierarchical clustering and latent profile analysis, were used to gain additional insights into subgroups using data from the same clinical tests. Results 130 participants were recruited, 127 had complete data: 84 (66%) female, mean age 26 years (SD 5.7) and mean body mass index 25.4 (SD 5.83), median (IQR) time between onset of pain and assessment was 24 (7–60) months. Potential subgroups defined by the à priori test thresholds were not mutually exclusive and patients frequently fell into multiple subgroups. Using hierarchical clustering and latent profile analysis three subgroups were identified using 6 of the 7 clinical tests. These subgroups were given the following nomenclature: (1) ‘strong’, (2) ‘weak and tighter’ and (3) ‘weak and pronated foot’. Conclusions We conclude that three subgroups of patellofemoral patients may exist based on the results of six clinical tests which are feasible to perform in routine clinical practice. Further research is needed to validate these findings in other data sets and, if supported by external validation, to see if targeted interventions for these subgroups improve patient outcomes.
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Affiliation(s)
- James Selfe
- University of Central Lancashire, Preston, Lancashire, UK
| | - Jessie Janssen
- University of Central Lancashire, Preston, Lancashire, UK
| | - Michael Callaghan
- Institute for Inflammation and Repair, Centre for Musculoskeletal Research, University of Manchester, Manchester, UK
| | - Erik Witvrouw
- Aspetar, Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Chris Sutton
- University of Central Lancashire, Preston, Lancashire, UK
| | - Jim Richards
- University of Central Lancashire, Preston, Lancashire, UK
| | - Maria Stokes
- Faculty of Health Sciences, University of Southampton, Southampton, UK
| | | | | | | | | | - Elizabeth Ritchie
- Department of Physiotherapy, Harrogate & District NHS Foundation Trust, Harrogate District Hospital, Harrogate, North Yorkshire, UK
| | - Nigel Arden
- University of Oxford, Nuffield Orthopaedic Centre, Oxford, UK
| | - Paola Dey
- University of Central Lancashire, Preston, Lancashire, UK
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de Oliveira Silva D, Magalhães FH, Faria NC, Pazzinatto MF, Ferrari D, Pappas E, de Azevedo FM. Lower Amplitude of the Hoffmann Reflex in Women With Patellofemoral Pain: Thinking Beyond Proximal, Local, and Distal Factors. Arch Phys Med Rehabil 2016; 97:1115-20. [PMID: 26763946 DOI: 10.1016/j.apmr.2015.12.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 12/14/2015] [Accepted: 12/18/2015] [Indexed: 11/24/2022]
Abstract
OBJECTIVES To investigate whether vastus medialis (VM) Hoffmann reflexes (H-reflexes) differ on the basis of the presence or absence of patellofemoral pain (PFP) and to assess the capability of VM H-reflex measurements in accurately discriminating between women with and without PFP. DESIGN Cross-sectional study. SETTING Laboratory of biomechanics and motor control. PARTICIPANTS Women (N=30) aged 18 to 35 years were recruited, consisting of 2 groups: women with PFP (n=15) and asymptomatic controls (n=15). INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES Maximum evoked responses were obtained by electrical stimulation applied to the femoral nerve, and peak-to-peak amplitudes of maximal Hoffmann reflex (Hmax) and maximal motor wave (Mmax) ratios were calculated. Independent samples t tests were performed to identify differences between groups, and a receiver operating characteristic curve was constructed to assess the discriminatory capability of VM H-reflex measurements. RESULTS VM Hmax/Mmax ratios were significantly lower in participants with PFP than in pain-free participants (P=.007). In addition, the VM Hmax/Mmax ratios presented large and balanced discriminatory capability values (sensitivity, 73%; specificity, 67%). CONCLUSIONS This study is the first to show that VM H-reflexes are lower in women with PFP than in asymptomatic controls. Therefore, increasing the excitation of the spinal cord in PFP participants may be essential to maintaining the gains acquired during the rehabilitation programs.
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Affiliation(s)
- Danilo de Oliveira Silva
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | | | - Nathálie Clara Faria
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | - Marcella Ferraz Pazzinatto
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil
| | - Deisi Ferrari
- Bioengineering Department, School of Engineering, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Evangelos Pappas
- Discipline of Physiotherapy, Faculty of Health Sciences, University of Sydney, Sydney, New South Wales, Australia
| | - Fábio Mícolis de Azevedo
- Physical Therapy Department, School of Science and Technology, University of São Paulo State, Presidente Prudente, Brazil.
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Sinclair J, Selfe J. Sex differences in knee loading in recreational runners. J Biomech 2015; 48:2171-5. [PMID: 26054425 DOI: 10.1016/j.jbiomech.2015.05.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 05/13/2015] [Accepted: 05/15/2015] [Indexed: 10/23/2022]
Abstract
Patellofemoral pain is the most common chronic pathology in recreational runners. Female runners are at greater risk of developing patellofemoral pain, although the exact mechanism behind this is not fully understood. This study aimed to determine whether female recreational runners exhibit distinct knee loading compared to males. Fifteen males and 15 females recreational runners underwent 3D running analysis at 4.0 ms(-1)±5%. Sagittal/coronal joint moments, patellofemoral contact forces (PTF) and pressures (PCP) were compared between sexes. The results show that females exhibited significantly greater knee extension (p<0.008, pη(2)=0.27: males=3.04; females=3.47 N m kg(-1)) and abduction (p<0.008, pη(2)=0.28: males=0.54; females=0.82 N m kg(-1)) moments as well as PTF (p<0.008, pη(2)=0.29: males=3.25; females=3.84 B.W.) and PCP (p<0.008, pη(2)=0.26: males=7.96; females=9.27 MPa) compared to males. Given the proposed relationship between knee joint loading and patellofemoral pathology, the current investigation provides insight into the incidence of patellofemoral pain in females.
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Affiliation(s)
- J Sinclair
- Centre for Applied Sport and Exercise Sciences, University of Central Lancashire, Preston PR1 2HE, Lancashire, UK.
| | - J Selfe
- Department of Allied Health Professionals, University of Central Lancashire, Lancashire, UK
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Selhorst M, Rice W, Degenhart T, Jackowski M, Tatman M. Evaluation of a treatment algorithm for patients with patellofemoral pain syndrome: a pilot study. Int J Sports Phys Ther 2015; 10:178-88. [PMID: 25883866 PMCID: PMC4387725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND Treatment of patellofemoral pain syndrome (PFPS) has been extensively studied in physical therapy literature. Patients with PFPS demonstrate quadriceps and hip musculature weakness, altered lower extremity (LE) kinematics, and decreased LE flexibility. Psychosocial factors have also been identified as an important factor in patients with PFPS. The authors hypothesize that an ordered approach addressing each of these impairments sequentially will result in greater improvement in PFPS symptoms. The purpose of this pilot study was to assess the feasibility of performing a randomized trial and to determine the sample size necessary to examine the validity of this hypothesis. METHODS Patients received a sequential treatment approach using a PFPS treatment algorithm (PFPS Algorithm) designed by the authors. Patients were evaluated assessing psychosocial factors, flexibility, LE kinematics, and LE strength. Impairments that were found in the evaluation were addressed sequentially over the episode of care. Patients were prescribed therapy two times per week for six weeks. Pain, Anterior Knee Pain Scale (AKPS), and Global Rating of Change (GROC) were measured at evaluation and discharge. RESULTS Thirty consecutive patients with PFPS who were referred to physical therapy were enrolled in the pilot study. All phases of the feasibility study including recruitment, treatment protocols and data collection were effectively carried out. One hundred percent of patients treated with the PFPS algorithm who completed the prescribed treatment had a clinically significant improvement in the AKPS and GROC. A floor effect was noted with NPRS with 38% of patients unable to achieve clinically significant improvement. CONCLUSIONS With minor changes to the protocol and outcome measures used, a full randomized trial is feasible and merited. Steps must be taken to reduce the high drop-out rate among both groups. LEVEL OF EVIDENCE 1b.
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Affiliation(s)
- Mitchell Selhorst
- Sports and Orthopedic Physical Therapy, Nationwide Children’s Hospital, Columbus, Ohio, USA
| | - William Rice
- Sports and Orthopedic Physical Therapy, Nationwide Children’s Hospital, Columbus, Ohio, USA
| | - Todd Degenhart
- Sports and Orthopedic Physical Therapy, Nationwide Children’s Hospital, Columbus, Ohio, USA
| | - Michael Jackowski
- Sports and Orthopedic Physical Therapy, Nationwide Children’s Hospital, Columbus, Ohio, USA
| | - Melissa Tatman
- Sports and Orthopedic Physical Therapy, Nationwide Children’s Hospital, Columbus, Ohio, USA
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Hott A, Liavaag S, Juel NG, Brox JI. Study protocol: a randomised controlled trial comparing the long term effects of isolated hip strengthening, quadriceps-based training and free physical activity for patellofemoral pain syndrome (anterior knee pain). BMC Musculoskelet Disord 2015; 16:40. [PMID: 25879452 PMCID: PMC4342827 DOI: 10.1186/s12891-015-0493-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Accepted: 02/03/2015] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Patellofemoral pain syndrome (PFPS), also known as Anterior Knee Pain, is a common cause of recurrent or chronic knee pain. The etiology is considered to be multifactorial but is not completely understood. At the current time the leading theory is that pathomechanics in the patellofemoral joint leads to PFPS. Traditionally, conservative treatment has focused on improving strength and timing in the quadriceps muscles. In recent years, evidence has been accumulating to support the importance of hip control and strengthening in PFPS. Two recent studies have shown promising results for hip strengthening as an isolated treatment for PFPS. The aim of this randomised controlled trial (RCT) is to compare isolated hip strengthening to traditional quadriceps-based training and a control group with free physical activity. METHODS/DESIGN An observer-blinded RCT will be performed. We intend to include 150 patients aged 16-40 years, referred from primary care practitioners to the department of Physical Medicine and Rehabilitation in Kristiansand, Norway for PFPS with more than three months duration. Patients meeting the inclusion criteria will be randomised using opaque sequentially numbered sealed envelopes to one of three groups: isolated hip strengthening, quadriceps based training, or a control group (free physical activity). All groups will receive standardized information about PFPS formulated with the intention to minimize fear avoidance and encourage self-mastery of symptoms. Standardized exercises will be performed under supervision of a study physiotherapist once per week in addition to home training two times per week for a total of six weeks. The primary outcome measure will be the Anterior Knee Pain Score (AKPS) at three and 12 months. Secondary outcome measures will include Visual analogue scale (VAS) for pain, hip abductor and quadriceps strength, the generic EuroQol (EQ-5D), Hopkins Symptom Checklist (HSCL), Knee self-efficacy score and Tampa score for Kinesiophobia. DISCUSSION This trial will help to elucidate the role of hip and quadriceps strengthening in the treatment of PFPS. Information as to the role of anxiety and depression, kinesiophobia and self-efficacy will be collected, also as regards prognosis and response to exercise therapy. TRIAL REGISTRATION ClinicalTrials.gov reference: NCT02114294.
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Affiliation(s)
- Alexandra Hott
- Department of Physical Medicine and Rehabilitation, Sorlandet Hospital Kristiansand, PO box 416, 4604, Kristiansand, Norway.
| | - Sigurd Liavaag
- Department of Orthopedic Surgery, Sorlandet Hospital Arendal, PO box 783 Stoa, 4809, Arendal, Norway.
| | - Niels Gunnar Juel
- Department of Physical Medicine and Rehabilitation, Oslo University Hospital-Ullevål, PO box 4956, Nydalen, 0424, Oslo, Norway.
| | - Jens Ivar Brox
- Department of Physical Medicine and Rehabilitation, Oslo University Hospital-Ullevål, PO box 4956, Nydalen, 0424, Oslo, Norway.
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Trunk biomechanics and its association with hip and knee kinematics in patients with and without patellofemoral pain. ACTA ACUST UNITED AC 2015; 20:189-93. [DOI: 10.1016/j.math.2014.08.013] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 08/25/2014] [Accepted: 08/28/2014] [Indexed: 11/23/2022]
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Benjafield A, Killingback A, Robertson C, Adds P. An investigation into the architecture of the vastus medialis oblique muscle in athletic and sedentary individuals: An in vivo ultrasound study. Clin Anat 2014; 28:262-8. [DOI: 10.1002/ca.22457] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 06/05/2014] [Accepted: 07/28/2014] [Indexed: 11/11/2022]
Affiliation(s)
- A.J. Benjafield
- Division of Biomedical Sciences (Anatomy); St. George's University of London; London United Kingdom
| | - A. Killingback
- Department of Medical Physics and Clinical Engineering; St. George's Healthcare NHS Trust; London United Kingdom
| | - C.J. Robertson
- Department of Rehabilitation Sciences; Kingston University/St. George's University of London; London United Kingdom
| | - P.J. Adds
- Division of Biomedical Sciences (Anatomy); St. George's University of London; London United Kingdom
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Selfe J, Dey P, Richards J, Cook N, Chohan A, Payne K, Masters R. Do people who consciously attend to their movements have more self-reported knee pain? An exploratory cross-sectional study. Clin Rehabil 2014; 29:95-100. [DOI: 10.1177/0269215514536208] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objectives: This study explored the relationship between propensity for conscious control of movement (assessed by the Movement-Specific Reinvestment Scale) and self-reported knee pain. Design: Cross-sectional study. Setting: General population. Subjects: Adults aged 18 to 55 years of age. Measures: Participants completed the movement-specific reinvestment scale and a self-report questionnaire on knee pain at the same time on one occasion. Results: Data was collected on 101 adults of whom 34 (33.7%) self-reported knee pain. Mean scores on the conscious motor processing subscale of the movement-specific reinvestment scale, but not the movement self-consciousness subscale, were significantly higher for participants who reported knee pain within the previous year compared with those who did not (mean difference 3.03; t-test 2.66, df = 97, P = 0.009; 95% confidence interval (CI) 0.77 to 5.30). The association between self-reported knee pain and propensity for conscious motor processing was still observed, even after controlling for movement self-consciousness subscale scores, age, gender and body mass index (adjusted odds ratio 1.16, 95% CI 1.04 to 1.30). Conclusions: Propensity for conscious control of movement may play a role in knee pain.
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Affiliation(s)
- James Selfe
- Allied Health Research Unit, University of Central Lancashire, Lancashire, UK
| | - Paola Dey
- School of Medicine and Dentistry, University of Central Lancashire, Lancashire, UK
| | - Jim Richards
- Allied Health Research Unit, University of Central Lancashire, Lancashire, UK
| | - Neil Cook
- School of Medicine and Dentistry, University of Central Lancashire, Lancashire, UK
| | - Ambreen Chohan
- Allied Health Research Unit, University of Central Lancashire, Lancashire, UK
| | - Katherine Payne
- Allied Health Research Unit, University of Central Lancashire, Lancashire, UK
| | - Rich Masters
- Department of Sport and Leisure Studies, University of Waikato, New Zealand
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