Propagation in l inear planar wa vegui des is a wel l-known pro blem , whereas pro pagati on in nonl inear waveguides wa s considered onl y in parti cular cases. Tha t is the caseof the nonl inear waveguide wi th a l inear Ùlm on a nonl inear substra te [1], then the l inear Ùlm surro unded by the nonl inear substra te and cover [2{ 7], the nonl inear Ùlm surro unded by l inear isotro pi c m ed...

Father Hesburgh opened his second day back on campus yesterday by ho ld ing a three hour meeting w ith student leaders in w h ich he attem pted to get some idea o f the issues that they are concerned w ith th is year. O ut o f the m eeting came the fact tha t he fe lt tha t he was on a “ year to yea r" basis w ith the Board o f Trustees and tha t he w ou ld step dow n as U n ivers ity President...

BACKGROUND Severe acetabular deficiencies in cases of developmental dysplasia of the hip (DDH) often require complex reconstructive procedures in total hip arthroplasty (THA). The use of autologous femoral head grafts for acetabular reconstruction has been described, but few data is available about clinical results, the rates of non-union or aseptic loosening of acetabular components. METHODS...

Residual hip impairments, such as decreased hip muscle moment and power during walking, have been reported in patients with total hip arthroplasty (THA). Meanwhile, greater ankle power has also been reported in these patients. We investigated the interaction between hip and ankle joints during walking to determine the effects of different ankle pushoff instructions on hip biomechanics in patien...

OBJECTIVES The aim of this study was to describe work status and time to return to work in patients undergoing total hip arthroplasty (THA) or total knee arthroplasty (TKA) and to determine which factors are associated with work status. METHODS A systematic search strategy in various databases through April 2013 was performed. All clinical studies concerning patients undergoing THA or TKA pro...

Abstract Operative time is a potential modifiable target for reducing cost and optimizing efficiency in total hip arthroplasty (THA). Shorter operative times are associated with decreased costs complications. One proposed solution operating room (OR) to preferentially perform THAs at higher volume center. The purpose of this study investigate the impact different hospital settings on mean THA. ...

Abstract Background Of late, periarticular analgesic injection (PAI) has become a common alternative treatment for pain following total hip arthroplasty (THA). However, the systemic effects of PAI containing corticosteroids in patients subjected to THA have not been investigated. This study evaluated efficacy and corticosteroid THA. Methods single-center, retrospective cohort enrolled undergoin...

BACKGROUND Patient-reported scoring systems have recently been used after surgical procedures. The purpose of this prospective study was to evaluate the patient-reported outcomes of femoral osteotomy and total hip arthroplasty (THA) for osteonecrosis of the femoral head (ONFH). METHODS Forty-two symptomatic ONFH patients with asymptomatic contralateral hip underwent either transtrochanteric a...

Metal-on-metal (MoM) total hip arthroplasty (THA) can be associated with adverse metal reactions, including pseudotumors. This case report describes a 58-year-old female with an MoM THA-related pseudotumor that caused unilateral leg edema from compression of her external iliac vein. After thorough preoperative workup to rule out infection and deep vein thrombosis and consultation with a vascula...

Revision total hip arthroplasty (THA) is associated with greater blood loss than primary THA. Jehovah's Witnesses will not accept transfusions of blood or blood products and are thus at an increased risk for complications due to perioperative anemia. The purpose of this study was to report the clinical outcomes, radiographic outcomes, morbidity, and mortality of Jehovah's Witnesses who were med...