Abstract Laboratory tests and column were carried out in a waterwoks to investigate the removal of short- long-chain PFAS using activated carbon filtration ion exchange treatment. For all adsorbents, sorption affinity short-chain per- polyfluoroalkyl carboxylic acids (PFCA) was significantly lower than that or sulfonic (PFSA). In PFAS-polluted groundwater matrix, PFCA PFBA PFPeA could only be s...

The primary aim of this study is to document whether patellofemoral arthroplasty is a good treatment option for patellofemoral osteoarthritis and to identify prognostic outcome factors. Secondary aim is to investigate the influence of preoperative tibiofemoral osteoarthritis on the clinical outcome. From 2004 to 2010, 37 Avon patellofemoral prostheses were implanted in 32 patients. Clinical out...

In total knee arthroplasty (TKA), patellofemoral groove design varies greatly and likely has a distinct influence on patellofemoral biomechanics. To analyse the selective influence, five patellofemoral design variations were developed based on Genesis II total knee endoprosthesis (original design, being completely flat, being laterally elevated, being medially elevated, and both sides elevated)...

INTRODUCTION Isolated patellofemoral osteoarthritis can be treated with patellofemoral arthroplasty. CASE PRESENTATION We present two cases of isolated patellofemoral osteoarthritis treated with Low Contact Stress patellofemoral arthroplasty; in both cases the polyethylene mobile-bearing of the patellar component dissociated from the metal backing. One patient had a revision to a Richards pat...

INTRODUCTION Genovarum is a common orthopedic problem. Its optimal prompt treatment is an issue of importance. AIM This study was conducted to determine the radiographic changes in patella bone before and after open wedge high tibial osteotomy. MATERIAL AND METHODS In this quasi-experimental study, 43 patients were enrolled and underwent open wedge high tibial osteotomy and the radiographic...

OBJECTIVE To make a comparative analysis on three femoropatellar radiographic parameters, between knees with chronic failure of the anterior cruciate ligament (ACL) and normal knees. METHODS Thirty volunteer patients with a diagnosis of unilateral isolated chronic ACL injury for more than one year and a normal contralateral knee were selected. Digital radiographs were produced for all the pat...

Adders is widely used in applications such as digital signal processing (DSP) and microprocessors. In this paper Half adders are simulated and analyzed based on power dissipation, area and speed on 90nm technology using Microwind and Dsch tool. Half Adder is the basic building block in Parallel Feedback Carry Adder (PFCA).

BACKGROUND Patellofemoral chondral lesions are frequently identified incidentally during the arthroscopic treatment of other knee pathologies. A role has been described for arthroscopic debridement when symptoms are known to originate from pathology of the patellofemoral joint. However, it remains unclear how to manage lesions which are found incidentally whilst tackling other pathologies. The ...

OBJECTIVE Patellofemoral instability is common and affects a predominantly young age group. Chondral injury occurs in up to 95%, and includes osteochondral fractures and loose bodies acutely and secondary degenerative changes in recurrent cases. Biomechanical abnormalities, such as trochlear dysplasia, patella alta, and increased tibial tuberosity-trochlear groove distance, predispose to both r...

In a mental rotation study, if the degree of the rotation angle of a visual stimulus becomes large, the response time for congruence judgment increases. Simultaneously, the cranial nerve becomes active. However, the relevance of the reaction response time to the same mental rotation angle degree conditions (e.g., the angle difference is 180o), and cranial nerve activity is unclear. Therefore, t...