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Harput G, Demirci S, Nyland J, Soylu AR, Tunay VB. Sports activity level after ACL reconstruction is predicted by vastus medialis or vastus medialis obliquus thickness, single leg triple hop distance or 6-m timed hop, and quality of life score. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2023; 33:3483-3493. [PMID: 37198499 DOI: 10.1007/s00590-023-03571-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 05/05/2023] [Indexed: 05/19/2023]
Abstract
PURPOSE Recovery after anterior cruciate ligament reconstruction (ACLR) may take > 2 years, and younger athletes have higher re-injury risk. The purpose of this prospective longitudinal study was to determine how the early to mid-term Tegner Activity Level Scale (TALS) scores of athletically active males ≥ 2 years post-ACLR follow-up was predicted by bilateral isokinetic knee extensor and flexor torque, quadriceps femoris thickness, single leg hop test performance, and self-reported knee function (Knee Injury and Osteoarthritis Outcome Score (KOOS); International Knee Documentation Committee (IKDC) Subjective Assessment score). METHODS After ACLR with a hamstring tendon autograft and safely returning to sports at least twice weekly, 23 men (18.4 ± 3.5 years of age) were evaluated at final follow-up (mean = 4.5, range = 2-7 years). Exploratory forward stepwise multiple regression was used to determine the relationship between independent surgical and non-surgical lower limb variables peak concentric isokinetic knee extensor-flexor torque at 60°/sec and 180°/sec, quadriceps femoris muscle thickness, single leg hop test profile results, KOOS subscale scores, IKDC Subjective Assessment scores, and time post-ACLR on TALS scores at final follow-up. RESULTS Subject TALS scores were predicted by KOOS quality of life subscale score, surgical limb vastus medialis obliquus (VMO) thickness, and surgical limb single leg triple hop for distance (SLTHD) performance. Subject TALS scores were also predicted by KOOS quality of life subscale score, non-surgical limb vastus medialis (VM) thickness, and non-surgical limb 6 m single leg timed hop (6MSLTH) performance. CONCLUSION TALS scores were influenced differently by surgical and non-surgical lower extremity factors. At ≥ 2 years post-ACLR, ultrasound VM and VMO thickness measurements, single leg hop tests that challenge knee extensor function, and self-reported quality of life measurements predicted sports activity levels. The SLTHD test may be better than the 6MSLTH for predicting long-term surgical limb function.
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Affiliation(s)
- Gulcan Harput
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Serdar Demirci
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Balıkesir University, Balıkesir, Turkey
| | - John Nyland
- Kosair Charities College of Health and Natural Sciences, Athletic Training Program, Norton Orthopedic Institute, Spalding University, 901 South 4Th Street, Louisville, KY, USA.
| | - Abdullah Ruhi Soylu
- Department of Biophysics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Volga Bayrakci Tunay
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
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Harput G, Demirci S, Soylu AR, Bayrakci Tunay V. Association between quadriceps muscle thickness and knee function in anterior cruciate ligament reconstructed athletes: a cross-sectional study. Physiother Theory Pract 2023; 39:2171-2179. [PMID: 35442153 DOI: 10.1080/09593985.2022.2068096] [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: 09/29/2021] [Revised: 04/13/2022] [Accepted: 04/13/2022] [Indexed: 10/18/2022]
Abstract
OBJECTIVE This study aimed to investigate the association between vastus medialis obliquus (VMO), rectus femoris (RF), and vastus lateralis (VL) muscle thickness and quadriceps isokinetic strength, single-leg hop performance, and self-reported knee function in male athletes who had undergone anterior cruciate ligament reconstruction (ACLR). METHODS Forty-two male athletes [mean ± standard deviation, age: 21.4 ± 3.4 years], who had undergone ACLR and had cleared to return to activity, were included in this study. Real-time ultrasound images of VMO, RF, and VL thicknesses were obtained from both reconstructed and contralateral limbs. Concentric quadriceps peak torque at 60°/s and 180°/s, single-leg hop for Distance (SLHD), and self-reported knee function scores were also assessed. Linear regression analysis and student t tests were used for statistical analysis. RESULTS In reconstructed limb, greater VMO, RF, and VL thicknesses were associated with greater quadriceps peak torque at 60°/s (p = .008, r2 = 0.46) and at 180°/s (p = .006, r2 = 0.47). Greater quadriceps thickness was related to greater SLHD score in reconstructed limb (p = .002, r2 = 0.21). Self-reported knee function scores were not related to quadriceps thickness. VMO, RF, and VL thicknesses were smaller in reconstructed limb compared to contralateral limb (p < .001, p = .01, and p = .002, respectively). CONCLUSION Quadriceps thickness by using ultrasound was associated with concentric quadriceps strength and single-leg hop distance in individuals who had undergone ACLR. However, quadriceps thickness was not related to self-reported knee function. The ultrasonography may be included in the evaluation of the knee function after ACLR, and it may be a useful and easy method in the follow-up of the quadriceps strength recovery following ACLR.
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Affiliation(s)
- Gulcan Harput
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - Serdar Demirci
- Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Balıkesir University, Bigadic, Turkey
| | - Abdullah Ruhi Soylu
- Faculty of Medicine, Department of Biophysics, Hacettepe University, Ankara, Turkey
| | - Volga Bayrakci Tunay
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
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Driban JB, Vincent HK, Trojian TH, Ambrose KR, Baez S, Beresic N, Berkoff DJ, Callahan LF, Cohen B, Franek M, Golightly YM, Harkey M, Kuenze CM, Minnig MC, Mobasheri A, Naylor A, Newman CB, Padua DA, Pietrosimone B, Pinto D, Root H, Salzler M, Schmitt L, Snyder-Mackler L, Taylor JB, Thoma LM, Vincent KR, Wellsandt E, Williams M. Evidence Review for Preventing Osteoarthritis After an Anterior Cruciate Ligament Injury: An Osteoarthritis Action Alliance Consensus Statement. J Athl Train 2023; 58:198-219. [PMID: 37130279 PMCID: PMC10176847 DOI: 10.4085/1062-6050-0504.22] [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] [Indexed: 05/04/2023]
Abstract
CONTEXT The Osteoarthritis Action Alliance formed a secondary prevention task group to develop a consensus on secondary prevention recommendations to reduce the risk of osteoarthritis after a knee injury. OBJECTIVE Our goal was to provide clinicians with secondary prevention recommendations that are intended to reduce the risk of osteoarthritis after a person has sustained an anterior cruciate ligament injury. Specifically, this manuscript describes our methods, literature reviews, and dissenting opinions to elaborate on the rationale for our recommendations and to identify critical gaps. DESIGN Consensus process. SETTING Virtual video conference calls and online voting. PATIENTS OR OTHER PARTICIPANTS The Secondary Prevention Task Group consisted of 29 members from various clinical backgrounds. MAIN OUTCOME MEASURE(S) The group initially convened online in August 2020 to discuss the target population, goals, and key topics. After a second call, the task group divided into 9 subgroups to draft the recommendations and supportive text for crucial content areas. Twenty-one members completed 2 rounds of voting and revising the recommendations and supportive text between February and April 2021. A virtual meeting was held to review the wording of the recommendations and obtain final votes. We defined consensus as >80% of voting members supporting a proposed recommendation. RESULTS The group achieved consensus on 15 of 16 recommendations. The recommendations address patient education, exercise and rehabilitation, psychological skills training, graded-exposure therapy, cognitive-behavioral counseling (lacked consensus), outcomes to monitor, secondary injury prevention, system-level social support, leveraging technology, and coordinated care models. CONCLUSIONS This consensus statement reflects information synthesized from an interdisciplinary group of experts based on the best available evidence from the literature or personal experience. We hope this document raises awareness among clinicians and researchers to take steps to mitigate the risk of osteoarthritis after an anterior cruciate ligament injury.
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Affiliation(s)
| | - Jeffrey B. Driban
- Division of Rheumatology, Allergy, and Immunology, Tufts Medical Center, Boston, MA
| | - Heather K. Vincent
- UF Health Sports Performance Center, Department of Physical Medicine and Rehabilitation, University of Florida, Gainesville
| | - Thomas H. Trojian
- UF Health Sports Performance Center, Department of Physical Medicine and Rehabilitation, University of Florida, Gainesville
| | | | - Shelby Baez
- Osteoarthritis Action Alliance, Thurston Arthritis Research Center, University of North Carolina at Chapel Hill
| | | | - David J. Berkoff
- Department of Kinesiology, Michigan State University, East Lansing
| | - Leigh F. Callahan
- Osteoarthritis Action Alliance, Thurston Arthritis Research Center, University of North Carolina at Chapel Hill
| | | | - Madison Franek
- University of North Carolina Therapy Services, UNC Wellness Center at Meadowmont, Chapel Hill
| | - Yvonne M. Golightly
- Department of Epidemiology, Thurston Arthritis Research Center, Injury Prevention Research Center, Osteoarthritis Action Alliance, University of North Carolina at Chapel Hill
| | - Matthew Harkey
- Department of Kinesiology, Michigan State University, East Lansing
| | | | - Mary Catherine Minnig
- Department of Epidemiology, Thurston Arthritis Research Center, Injury Prevention Research Center, Osteoarthritis Action Alliance, University of North Carolina at Chapel Hill
| | - Ali Mobasheri
- Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Finland; Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania; Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; World Health Organization Collaborating Centre for Public Health Aspects of Musculoskeletal Health and Aging, Liege, Belgium
| | | | - Connie B. Newman
- Department of Medicine, Division of Endocrinology, Diabetes & Metabolism, NYU Grossman School of Medicine, New York, NY
| | - Darin A. Padua
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill
| | - Brian Pietrosimone
- Department of Physical Therapy, Congdon School of Health Sciences, High Point University, NC
| | - Daniel Pinto
- Department of Physical Therapy, Marquette University, Milwaukee, WI
| | - Hayley Root
- Department of Physical Therapy, Marquette University, Milwaukee, WI
| | - Matthew Salzler
- Department of Physical Therapy and Athletic Training, Northern Arizona University, Flagstaff
| | - Laura Schmitt
- Division of Physical Therapy, School of Health and Rehabilitation Sciences, Ohio State University, Columbus
| | | | - Jeffrey B. Taylor
- Department of Physical Therapy, Congdon School of Health Sciences, High Point University, NC
| | - Louise M. Thoma
- Division of Physical Therapy, Department of Allied Health Sciences, University of North Carolina at Chapel Hill
| | - Kevin R. Vincent
- UF Health Sports Performance Center, Department of Physical Medicine and Rehabilitation, University of Florida, Gainesville
| | - Elizabeth Wellsandt
- Division of Physical Therapy Education, University of Nebraska Medical Center, Omaha
| | - Monette Williams
- Division of Physical Therapy Education, University of Nebraska Medical Center, Omaha
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Arthrogenic Muscle Inhibition Following Anterior Cruciate Ligament Injury. J Sport Rehabil 2022; 31:694-706. [PMID: 35168201 DOI: 10.1123/jsr.2021-0128] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 10/06/2021] [Accepted: 10/28/2021] [Indexed: 11/18/2022]
Abstract
Arthrogenic muscle inhibition (AMI) is a common impairment in individuals who sustain an anterior cruciate ligament (ACL) injury. The AMI causes decreased muscle activation, which impairs muscle strength, leading to aberrant movement biomechanics. The AMI is often resistant to traditional rehabilitation techniques, which leads to persistent neuromuscular deficits following ACL reconstruction. To better treat AMI following ACL injury and ACL reconstruction, it is important to understand the specific neural pathways involved in AMI pathogenesis, as well as the changes in muscle function that may impact movement biomechanics and long-term structural alterations to joint tissue. Overall, AMI is a critical factor that limits optimal rehabilitation outcomes following ACL injury and ACL reconstruction. This review discusses the current understanding of the: (1) neural pathways involved in the AMI pathogenesis following ACL injury; (2) consequence of AMI on muscle function, joint biomechanics, and patient function; and (3) development of posttraumatic osteoarthritis. Finally, the authors review the evidence for interventions specifically used to target AMI following ACL injury.
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Ericsson YB, McGuigan FE, Akesson KE. Knee pain in young adult women- associations with muscle strength, body composition and physical activity. BMC Musculoskelet Disord 2021; 22:715. [PMID: 34419011 PMCID: PMC8380389 DOI: 10.1186/s12891-021-04517-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 07/12/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Knee pain is studied mostly in older age groups, although in young adults it may be an indicator of future impaired musculoskeletal health. Therefore, the aim of this study was to examine the longitudinal association between knee pain and thigh muscle strength in young adult women and to explore the associations between muscle strength, body composition, physical activity and knee pain. METHODS The PEAK-25 cohort consists of women aged 25 at baseline (N=1064). At the 10-year follow-up n=728 attended for DXA-measured body composition and muscle strength assessment and n=797 answered the questionnaire on health and lifestyle. Independent samples t-test was used to compare women with and without knee pain, Spearman correlation was used to test the longitudinal association between strength and knee pain. RESULTS Knee pain was reported by one third of the women at follow-up (n=260, 33%), although physical activity levels were similar in those with and without pain (high level 50 vs 45 % (p= 0.18). Body composition differed, however. Women with knee pain had higher BMI (25.6 vs 24.1), fat mass index (9.2 vs 8.2) and % total body fat mass (34.7 vs 33.2). Simultaneously, they had lower % lean mass (total body 61.5 vs 62.8; legs 20.6 vs 21.0) and lower thigh muscle strength (extensors 184.9 vs 196.8, flexors 96.6 vs 100.9, p<0.05), but slightly higher hamstrings-to -quadriceps ratio (0.53 vs 0.51, p=0.04). Muscle strength at baseline weakly correlated with knee pain at follow-up (extensor rs= -0.04; flexor -0.02, p>0.2). Overweight women had higher absolute thigh muscle strength, but lower weight-adjusted strength than normal weight women (p<0.001). Leg lean mass explained 26-34% of the variation in muscle strength and adjustment for physical activity level had little effect. CONCLUSION Knee pain is already common among women in their mid-thirties. Lower thigh muscle strength in the mid-twenties was not associated with future knee pain, however women with knee pain tended to have lower thigh muscle strength and a body composition of higher body fat combined with lower lean mass. Maintaining a healthy body composition and adequate thigh muscle strength may be beneficial for knee joint health.
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Affiliation(s)
- Ylva B Ericsson
- Department of Clinical Sciences, Lund University, Malmö, Sweden.,Department of Ortopedics, Skane University Hospital, 205 02, Malmö, Sweden
| | | | - Kristina E Akesson
- Department of Clinical Sciences, Lund University, Malmö, Sweden. .,Department of Ortopedics, Skane University Hospital, 205 02, Malmö, Sweden.
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Is good muscle function a protective factor for early signs of knee osteoarthritis after anterior cruciate ligament reconstruction? The SHIELD cohort study protocol. OSTEOARTHRITIS AND CARTILAGE OPEN 2020; 2:100102. [DOI: 10.1016/j.ocarto.2020.100102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 09/16/2020] [Indexed: 11/18/2022] Open
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Birchmeier T, Lisee C, Kane K, Brazier B, Triplett A, Kuenze C. Quadriceps Muscle Size Following ACL Injury and Reconstruction: A Systematic Review. J Orthop Res 2020; 38:598-608. [PMID: 31608490 DOI: 10.1002/jor.24489] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/20/2019] [Indexed: 02/04/2023]
Abstract
Image-based assessments of quadriceps muscle size facilitate examination of structural changes after anterior cruciate ligament (ACL) injury and reconstruction (ACLR). Understanding the effects of ACLR on muscle size measures may aid in clarifying the contribution of quadriceps atrophy toward quadriceps strength. The purpose of this study was to systematically review the literature examining the effects of ACLR on quadriceps muscle volume and cross-sectional area (CSA). An online database search was conducted using Web of Science, SportDISCUS, PubMed (Medline), CINHAL (EBSCO), and Cochrane Library limited to articles published after January 1, 1980. Means and standard deviations were extracted for the ACLR limb and the contralateral limb, and sample characteristics from relevant articles. Magnitude of between limb differences were assessed using pooled effect sizes (Hedge's g) and 95% confidence intervals. Eleven articles (five CSA, six muscle volume) were included in this systematic review. Included studies reported negative effective sizes, indicating that the ACLR limb was smaller in CSA or muscle volume compared with the contralateral limb; however, 36% of the included articles reported meaningful difference between the limbs. Quadriceps atrophy may occur following ACL injury and persist after rehabilitation, however, the magnitude of these reductions may not be clinically meaningful and may only partially explain the persistent quadriceps weakness that is ubiquitous among this patient population. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 38:598-608, 2020.
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Affiliation(s)
- Thomas Birchmeier
- Department of Kinesiology, College of Education, Michigan State University, IM Sports Circle, Rm 1, 308 W. Circle Dr, East Lansing, Michigan, 48824
| | - Caroline Lisee
- Department of Kinesiology, College of Education, Michigan State University, IM Sports Circle, Rm 1, 308 W. Circle Dr, East Lansing, Michigan, 48824
| | - Kevin Kane
- Department of Osteopathic Surgical Specialties, College of Osteopathic Medicine, Michigan State University, East Lansing, Michigan
| | - Brett Brazier
- Department of Orthopaedic Surgery, San Antonio Military Medical Center, Fort Sam Houston, Texas
| | - Ashley Triplett
- Department of Kinesiology, College of Education, Michigan State University, IM Sports Circle, Rm 1, 308 W. Circle Dr, East Lansing, Michigan, 48824
| | - Christopher Kuenze
- Department of Kinesiology, College of Education, Michigan State University, IM Sports Circle, Rm 1, 308 W. Circle Dr, East Lansing, Michigan, 48824.,Department of Orthopedics, College of Osteopathic Medicine, Michigan State University, East Lansing, Michigan
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Shultz SJ, Schmitz RJ, Cameron KL, Ford KR, Grooms DR, Lepley LK, Myer GD, Pietrosimone B. Anterior Cruciate Ligament Research Retreat VIII Summary Statement: An Update on Injury Risk Identification and Prevention Across the Anterior Cruciate Ligament Injury Continuum, March 14-16, 2019, Greensboro, NC. J Athl Train 2019; 54:970-984. [PMID: 31461312 PMCID: PMC6795093 DOI: 10.4085/1062-6050-54.084] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sandra J. Shultz
- Applied Neuromechanics Research Laboratory, University of North Carolina at Greensboro
| | - Randy J. Schmitz
- Applied Neuromechanics Research Laboratory, University of North Carolina at Greensboro
| | - Kenneth L. Cameron
- John A. Feagin Jr Sports Medicine Fellowship, Keller Army Hospital, United States Military Academy, West Point, NY
| | - Kevin R. Ford
- Human Biomechanics and Physiology Laboratory, Department of Physical Therapy, High Point University, NC
| | - Dustin R. Grooms
- Ohio Musculoskeletal & Neurological Institute and Division of Athletic Training, School of Applied Health Sciences and Wellness, College of Health Sciences and Professions, Ohio University, Athens
| | | | - Gregory D. Myer
- The SPORT Center, Division of Sports Medicine, and Departments of Pediatrics and Orthopaedic Surgery, Cincinnati Children's Hospital Medical Center, College of Medicine, University of Cincinnati, OH
| | - Brian Pietrosimone
- MOTION Science Institute, Department of Exercise and Sport Science, University of North Carolina at Chapel Hill
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Pietrosimone B, Pfeiffer SJ, Harkey MS, Wallace K, Hunt C, Blackburn JT, Schmitz R, Lalush D, Nissman D, Spang JT. Quadriceps weakness associates with greater T1ρ relaxation time in the medial femoral articular cartilage 6 months following anterior cruciate ligament reconstruction. Knee Surg Sports Traumatol Arthrosc 2019; 27:2632-2642. [PMID: 30560446 DOI: 10.1007/s00167-018-5290-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 11/09/2018] [Indexed: 01/06/2023]
Abstract
PURPOSE Quadriceps weakness following anterior cruciate ligament reconstruction (ACLR) is linked to decreased patient-reported function, altered lower extremity biomechanics and tibiofemoral joint space narrowing. It remains unknown if quadriceps weakness is associated with early deleterious changes to femoral cartilage composition that are suggestive of posttraumatic osteoarthritis development. The purpose of the cross-sectional study was to determine if quadriceps strength was associated with T1ρ relaxation times, a marker of proteoglycan density, of the articular cartilage in the medial and lateral femoral condyles 6 months following ACLR. It is hypothesized that individuals with weaker quadriceps would demonstrate lesser proteoglycan density. METHODS Twenty-seven individuals (15 females, 12 males) with a patellar tendon autograft ACLR underwent isometric quadriceps strength assessments in 90°of knee flexion during a 6-month follow-up exam. Magnetic resonance images (MRI) were collected bilaterally and voxel by voxel T1ρ relaxation times were calculated using a five-image sequence and a monoexponential equation. Following image registration, the articular cartilage for the weight-bearing surfaces of the medial and lateral femoral condyles (MFC and LFC) were manually segmented and further sub-sectioned into posterior, central and anterior regions of interest (ROI) based on the corresponding meniscal anatomy viewed in the sagittal plane. Univariate linear regression models were used to determine the association between quadriceps strength and T1ρ relaxation times in the entire weight-bearing MFC and LFC, as well as the ROI in each respective limb. RESULTS Lesser quadriceps strength was significantly associated with greater T1ρ relaxation times in the entire weight-bearing MFC (R2 = 0.14, P = 0.05) and the anterior-MFC ROI (R2 = 0.22, P = 0.02) of the ACLR limb. A post hoc analysis found lesser strength and greater T1ρ relaxation times were significantly associated in a subsection of participants (n = 18) without a concomitant medial tibiofemoral compartment meniscal or chondral injury in the entire weight-bearing MFC, as well as anterior-MFC and central-MFC ROI of the ACLR and uninjured limb. CONCLUSIONS The association between weaker quadriceps and greater T1ρ relaxation times in the MFC suggests deficits in lower extremity muscle strength may be related to cartilage composition as early as 6 months following ACLR. Maximizing quadriceps strength in the first 6 months following ACLR may be critical for promoting cartilage health early following ACLR. LEVEL OF EVIDENCE Prognostic level 1.
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Affiliation(s)
- Brian Pietrosimone
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, CB# 8700, 209 Fetzer Hall South Road, Chapel Hill, NC, 27599, USA. .,Human Movement Science Curriculum, University of North Carolina at Chapel Hill, Fetzer Hall 209 South Road, Chapel Hill, NC, 27599, USA. .,Department of Orthopaedics, University of North Carolina at Chapel Hill, 102 Mason Farm Rd # 2, Chapel Hill, NC, 27599, USA.
| | - Steven J Pfeiffer
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, CB# 8700, 209 Fetzer Hall South Road, Chapel Hill, NC, 27599, USA.,Human Movement Science Curriculum, University of North Carolina at Chapel Hill, Fetzer Hall 209 South Road, Chapel Hill, NC, 27599, USA
| | - Matthew S Harkey
- Division of Rheumatology, Tufts Medical Center, 800 Washington Street, South Building, 3rd Floor, Boston, MA, 02111, USA
| | - Kyle Wallace
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, CB# 8700, 209 Fetzer Hall South Road, Chapel Hill, NC, 27599, USA
| | - Christian Hunt
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, CB# 8700, 209 Fetzer Hall South Road, Chapel Hill, NC, 27599, USA
| | - J Troy Blackburn
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, CB# 8700, 209 Fetzer Hall South Road, Chapel Hill, NC, 27599, USA.,Human Movement Science Curriculum, University of North Carolina at Chapel Hill, Fetzer Hall 209 South Road, Chapel Hill, NC, 27599, USA.,Department of Orthopaedics, University of North Carolina at Chapel Hill, 102 Mason Farm Rd # 2, Chapel Hill, NC, 27599, USA
| | - Randy Schmitz
- Department of Kinesiology, University of North Carolina at Greensboro, Coleman Building, 1408 Walker Avenue, Greensboro, NC, 27402, USA
| | - David Lalush
- Joint Department of Biomedical Engineering, North Carolina State University and University of North Carolina at Chapel Hill, 333 S Columbia St, Raleigh, NC, 27514, USA
| | - Daniel Nissman
- Department of Radiology, University of North Carolina at Chapel Hill, 101 Manning Dr # 2, Chapel Hill, NC, 27599, USA
| | - Jeffrey T Spang
- Department of Orthopaedics, University of North Carolina at Chapel Hill, 102 Mason Farm Rd # 2, Chapel Hill, NC, 27599, USA
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Song X, Zhu M, Li H, Liu B, Yan Z, Wang W, Li H, Sun J, Li S. USF1 promotes the development of knee osteoarthritis by activating the NF-κB signaling pathway. Exp Ther Med 2018; 16:3518-3524. [PMID: 30233704 PMCID: PMC6143875 DOI: 10.3892/etm.2018.6608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 07/19/2018] [Indexed: 01/16/2023] Open
Abstract
The current study mainly aims to evaluate the expression pattern and underlying mechanism of upstream stimulating factor 1 (USF1) in the muscle tissues of knee osteoarthritis (KOA) patients. In accordance with previous findings, our data showed that muscle strength was significantly decreased in KOA patients compared with controls. Furthermore, several inflammatory factors, including tumor necrosis factor α (TNFα), IL-8, IL-6 and MCP-1, were associated with reduced muscle strength in KOA patients. Not surprisingly, NF-κB signaling was significantly activated in the muscle tissues of KOA patients compared with control individuals. Furthermore, we showed that USF1 was increased in the muscles of KOA patients compared with controls. More importantly, overexpression of USF1 in primary human skeletal muscle cells significantly increased the activation of NF-κB signaling as well as the levels of pro-inflammatory factors. In summary, we showed novel data that the upregulation of USF1 promoted NF-κB activation-induced inflammatory responses in muscle tissues of KOA patients.
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Affiliation(s)
- Xiandong Song
- Department of Orthopedics, Hongqi Hospital Affiliated with Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Min Zhu
- Department of Radiology, Hongqi Hospital Affiliated with Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Hao Li
- Department of Radiology, Hongqi Hospital Affiliated with Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Bo Liu
- Department of Orthopedics, Hongqi Hospital Affiliated with Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Zhaowei Yan
- Department of Orthopedics, Hongqi Hospital Affiliated with Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Weican Wang
- Department of Orthopedics, Hongqi Hospital Affiliated with Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Hongyi Li
- Department of Radiology, Hongqi Hospital Affiliated with Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Jiping Sun
- Department of Radiology, Hongqi Hospital Affiliated with Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Shixing Li
- Department of Radiology, Hongqi Hospital Affiliated with Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
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PAMUKOFF DEREKN, MONTGOMERY MELISSAM, MOFFIT TYLERJ, VAKULA MICHAELN. Quadriceps Function and Knee Joint Ultrasonography after ACL Reconstruction. Med Sci Sports Exerc 2018; 50:211-217. [DOI: 10.1249/mss.0000000000001437] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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