PurposeEvaluation of a deep learning approach for the detection meniscal tears and their characterization (presence/absence migrated fragment).MethodsA large annotated adult knee MRI database was built combining medical expertise radiologists data scientists’ tools. Coronal sagittal proton density fat suppressed-weighted images 11,353 examinations (10,401 individual patients) paired with standa...

Background: Following an anterior cruciate ligament (ACL) tear, associated injuries in the knee involving menisci and articular cartilage increase with time. This study was performed to assess distribution of secondary after ACL tear time identify a suitable timing for reconstruction surgery. Methods: 74 patients were divided into three groups based on since injury- less than six months, months...

This prospective, randomized, blinded pilot study determined if a difference was present in the histology and apoptotic rate of articular cartilage after application of a negative pressure wound therapy (NPWT) device to an uninjured joint surface compared to a control side using Capra hircus goats. The goats were euthanized at 3 or 7 days after surgery. The en bloc joint resection was divided i...

INTRODUCTION Calcium crystals exist in the knee joint fluid of up to 65% of osteoarthritis (OA) patients and the presence of these calcium crystals correlates with the radiographic evidence of hyaline cartilaginous degeneration. This study sought to examine calcium deposition in OA meniscus and to investigate OA meniscal cell-mediated calcium deposition. The hypothesis was that OA meniscal cell...

Disruption of the major ligaments of the knee was seen in six young men, five parachutists and a house painter, after what we have termed abduction-traction injury. This unusual complaint results from the application of a sudden block to the ankle while falling head first, leading to traction and abduction of the knee. All the patients underwent operations, generally with unsatisfactory results...

The drying dynamics in three dimensional porous media are studied with confocal microscopy. We observe abrupt air invasions in size from single particle to hundreds of particles. We show that these result from the strong flow from menisci in large pores to menisci in small pores during drying. This flow causes air invasions to start in large menisci and subsequently spread throughout the entire...

The article evaluates the bearing capacity of hip joint endoprosthesis made carbon/carbon (С/C) composites under anatomical load. С/C is on basis carbon fiber Ural N/400-22 and phenolformaldehyde resin novolachny type RP-010. A significant complexity in modeling an prediction properties С/C. mathematical based mechanics composite materials consists impossibility experimentally determining mecha...

Objective Magnetic resonance imaging (MRI) is paramount in the assessment of knee pathology, particularly when planning for a surgical procedure. This study compared the diagnostic accuracy in MRI reading of pathological knees by radiologists and orthopaedic surgeons. Materials and methods Cross-sectional study comprising 80 randomly selected patients previously submitted to arthroscopic surg...

Cellular effect on meniscal healing Mauck and Burdick performed a review of the basic science of meniscal healing, and factors that affect it. They point out that over the age of 40, patients have far fewer meniscal fibrochondrocytes at the tear interface and are therefore less able to up-regulate production of matrix proteins and enzymes in a healing response. They discuss studies that suggest...

We study the dynamics of periodic arrays of micrometer-sized liquid-gas menisci formed at superhydrophobic surfaces immersed into water. By measuring the intensity of optical diffraction peaks in real time, we are able to resolve nanometer-scale oscillations of the menisci with submicrosecond time resolution. Upon driving the system with an ultrasound field at variable frequency, we observe a p...