BACKGROUND Very severe osteoporotic vertebral compression fractures (vsOVCFs) are osteoporotic vertebral compression fractures with vertebral body collapse to less than one third of their original height. Few data are available about the use of percutaneous kyphoplasty (PKP) in treating vsOVCFs with spinal canal compromise. The aim of this study was to evaluate the safety and efficacy of percut...

[1] Cylindrical anisotropy in Earth’s inner core has been invoked to account for travel times of PKP core‐sensitive seismic waves, such as from the South Sandwich Islands (SSI) earthquakes observed in Alaska, which depart from predictions. Newly collected travel‐time residuals from seismic waves from the SSI region that sample only Earth’s mantle (PcP and P waves) have a comparable range to the...

BACKGROUND Sclerocornea, a congenital corneal pathology characterized by bilateral scleralization of the cornea, which can be found in few cases with posterior fossa malformationshemangiomas-arterial anomalies-cardiac defects-eye abnormalities-sternal cleft and supraumbilical raphe (PHACES) syndrome. Presence of vascularization in peripheral cornea and smaller diameter of recipient cornea corre...

OBJECTIVES To evaluate the complications, and visual and graft survival outcomes in eyes that had undergone penetrating keratoplasty (PKP) for keratoconus. METHODOLOGY This restrospective study includes 311 patients with keratoconus who had undergone PKP between January 1, 2001, and December 31, 2002, at King Khaled Eye Specialist Hospital. All patients were followed up postoperatively (maxim...

PURPOSE Herpetic keratitis is a common sequel of a corneal infection with herpes simplex virus (HSV)-1. Recrudescent herpetic keratitis (RHK) may result in irreversible damage to the cornea. Recurrences may be caused by reactivation of endogenous HSV-1 or reinfection with exogenous HSV-1. The objective of this study was to determine the incidence and risk factors involved of HSV-1 superinfectio...

PURPOSE: To report long-term results in a case series of patients treated with systemic immune suppression for prevention of penetrating keratoplasty (PKP) graft rejection. DESIGN: Retrospective noncomparative chart review. PARTICIPANTS: Three patients presented with PKP graft failure. METHODS: Patients received oral prednisone, azathioprine and cyclosporine to prevent rejection of repeat corne...

PURPOSE To evaluate the long-term outcome of ocular surface reconstruction, including keratolimbal allograft (KLAL) and amniotic membrane transplantation (AMT) with or without penetrating keratoplasty (PKP), in patients with nonambulatory vision secondary to total limbal stem cell deficiency (LSCD). DESIGN Retrospective, non-comparative interventional case series. PARTICIPANTS Thirty-nine e...

PURPOSE To report the visual results and success rate of penetrating keratoplasty (PKP) in a series of young children with congenital hereditary endothelial dystrophy (CHED). METHODS This is a retrospective study on twenty-four eyes of 15 patients (seven male and eight female) operated on for CHED. Children less than 12 years of age at the time of surgery who were followed for at least 6 mont...

Recent studies of the core-mantle boundary (CMB) have revealed some very anomalous tructures interpreted in terms of ultra low velocity zones (ULVZ). However, there remains considerable uncertainties about their physical descriptions or even if they occur above or below the CMB. They have only been detected in isolated situations using rather special techniques; these includes: distortions in S...

BACKGROUND Chronic low back pain is a highly prevalent condition with no definitive treatment. Professional Kinesiology Practice (PKP) is a little known complementary medicine technique using non-standard muscle testing; no previous effectiveness studies have been performed. METHODS This is an exploratory, pragmatic single-blind, 3-arm randomised sham-controlled pilot study with waiting list ...