This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Total knee arthroplasty (TKA) is one of the most common knee surgeries performed in the United States. Patients with TKA exhibit qualitative and quantitative deficits in functional tasks. Shortened stride length and limited knee excursion during weight acceptance is a common finding after TKA. The cause of persistent disability and aberrant movement patterns in individuals who have undergone TKA is unclear, but quadriceps weakness is a likely contributor. Quadriceps weakness is a common and persistent impairment after TKA and has been correlated with poor functional performance in older adults. Weakness is often pronounced even years after knee replacement surgery with deficits ranging from 30% to 40% when compared to age-matched comparison groups. The overall goal of this work is to determine if rehabilitation that normalizes quadriceps strength between limbs after TKA will result in symmetrical loading of the hips and knees and ultimately decrease the progression of contralateral hip and knee OA after primary TKA. Dr. Snyder-Mackler is a full professor and will not have a mentor.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Exploratory Grants (P20)
Project #
5P20RR016458-08
Application #
7959493
Study Section
Special Emphasis Panel (ZRR1-RI-5 (01))
Project Start
2009-06-01
Project End
2010-05-31
Budget Start
2009-06-01
Budget End
2010-05-31
Support Year
8
Fiscal Year
2009
Total Cost
$255,153
Indirect Cost
Name
University of Delaware
Department
Biomedical Engineering
Type
Schools of Engineering
DUNS #
059007500
City
Newark
State
DE
Country
United States
Zip Code
19716
Wellsandt, Elizabeth; Khandha, Ashutosh; Manal, Kurt et al. (2017) Predictors of knee joint loading after anterior cruciate ligament reconstruction. J Orthop Res 35:651-656
Pozzi, Federico; Marmon, Adam R; Snyder-Mackler, Lynn et al. (2016) Lower leg compensatory strategies during performance of a step up and over task in patient six-months after total knee arthroplasty. Gait Posture 49:41-46
Moore, A C; DeLucca, J F; Elliott, D M et al. (2016) Quantifying Cartilage Contact Modulus, Tension Modulus, and Permeability With Hertzian Biphasic Creep. J Tribol 138:0414051-414057
Rehmann, Matthew S; Luna, Jesus I; Maverakis, Emanual et al. (2016) Tuning microenvironment modulus and biochemical composition promotes human mesenchymal stem cell tenogenic differentiation. J Biomed Mater Res A 104:1162-74
Abujaber, Sumayeh; Gillispie, Gregory; Marmon, Adam et al. (2015) Validity of the Nintendo Wii Balance Board to assess weight bearing asymmetry during sit-to-stand and return-to-sit task. Gait Posture 41:676-82
Zimmerman, B K; Bonnevie, E D; Park, M et al. (2015) Role of interstitial fluid pressurization in TMJ lubrication. J Dent Res 94:85-92
Moore, A C; Zimmerman, B K; Chen, X et al. (2015) Experimental characterization of biphasic materials using rate-controlled Hertzian indentation. Tribol Int 89:2-8
Moore, A C; Burris, D L (2015) Tribological and material properties for cartilage of and throughout the bovine stifle: support for the altered joint kinematics hypothesis of osteoarthritis. Osteoarthritis Cartilage 23:161-9
Pozzi, Federico; Snyder-Mackler, Lynn; Zeni Jr, Joseph (2015) Relationship between biomechanical asymmetries during a step up and over task and stair climbing after total knee arthroplasty. Clin Biomech (Bristol, Avon) 30:78-85
Aravindan, Rolands G; Kirn-Safran, Catherine B; Smith, Michelle A et al. (2014) Ultrastructural changes and asthenozoospermia in murine spermatozoa lacking the ribosomal protein L29/HIP gene. Asian J Androl 16:925-6

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