Results 81 to 90 of about 132,736 (383)
Two cases of combined patellar tendon avulsion from the tibia and patella
Avulsion fractures of the inferior pole of the patella and proximal tibial apophysis are independently rare injuries. They occur in children due to the relative weakness of the apophyseal cartilage compared to the ligaments and tendons.
Bradko Viachaslau+4 more
doaj +1 more source
Gearing effects of the patella (knee extensor muscle sesamoid) of the helmeted guineafowl during terrestrial locomotion [PDF]
Human patellae (kneecaps) are thought to act as gears, altering the mechanical advantage of knee extensor muscles during running. Similar sesamoids have evolved in the knee extensor tendon independently in birds, but it is unknown if these also affect ...
Alexander+30 more
core +1 more source
ABSTRACT The TBX4 gene has a critical importance in the development of the lower limbs and lungs. Pathogenic variants in this gene are associated with a variable spectrum of skeletal anomalies of the lower limb and pneumological manifestations, with dominant or recessive inheritance.
Simone Carbonera+12 more
wiley +1 more source
Patella Footprint Technique—A Surgical Method for Medial Patellofemoral Ligament Reconstruction
Recurrent patella instability is a common condition that may potentiate substantial knee dysfunction resulting in loss of time from work and sports. There are numerous factors that contribute to recurrent patella instability including tearing of the ...
Jennifer Kurowicki, M.D.+5 more
doaj
Giant-cell tumor of the patella: An uncommon cause of fracture
Primary patellar tumors are highly unusual. Most are benign neoplasms with giant-cell tumors being the most common, followed by chondroblastomas and aneurysmal bone cysts.
Esther Carbó-Laso+6 more
doaj +1 more source
JC is a 13 year old boy who presented with a 3 week history of anterior right knee pain. Pain is activity related and brought on whenever JC plays football or basketball. He never needed to stop from any particular activity because of the pain.
Formosa, Aaron
core +1 more source
Patella instability in children and adolescents
Patellar instabilities are the most common knee pathologies during growth. Congenital dislocations are rare. Extensive, early soft tissue releases relocate the extensor mechanism and may enable normal development of the femoro-patellar anatomy ...
C. Hasler, D. Studer
semanticscholar +1 more source
The hypothesis diagram illustrates the function and mechanism of circNR3C2: circNR3C2 overexpression can up‐regulate COL2, Aggrecan and SOX9 expression, and regulate chondrogenic differentiation of hADSCs by targeting hsa‐miR‐647. Abstract Background Human adipose‐derived stem cells (hADSCs) are seed cells with application prospects in cartilage repair.
Dabiao Hou+5 more
wiley +1 more source
Background: Anterior knee pain is a major problem in total knee arthroplasty (TKA). It is accepted that anterior knee pain (AKP) often contributes to a patellofemoral etiology; however, its etiology or treatment is not understood completely.
Mehdi Motififard+3 more
doaj +1 more source
Tibiofemoral and patellofemoral joint 3D-kinematics in patients with posterior cruciate ligament deficiency compared to healthy volunteers [PDF]
Background: The posterior cruciate ligament (PCL) plays an important role in maintaining physiological kinematics and function of the knee joint. To date mainly in-vitro models or combined magnetic resonance and fluoroscopic systems have been used for ...
Burgkart, Rainer+7 more
core +1 more source