BACKGROUND After pulmonary autograft replacement of the aortic valve and root, the pulmonary artery (PA) wall is subjected to higher pressures. Concern exists that this may lead to structural and functional changes in the implanted autograft and subsequent aortic root dilatation and neoaortic regurgitation. We therefore assessed root dimensions and neoaortic regurgitation, morphological structu...

objective: as effectiveness of the autologous graft in the repair of long nerve defects is very limited an effective substitute is needed. this study was conducted to determine the poled polyvinylidene fluoride (pvdf) tube as an alternative to nerve autograft. materials and methods: the left sciatic nerve was transected in 45 male wistar rats. the animals were then divided randomly into three g...

In pediatric patients, the further growth potential is a major advantage in using the pulmonary autograft (Ross procedure). The authors describe a modified annuloplasty technique that appears to prevent the development of undesirable aortic regurgitation associated with root enlargement while not affecting overall tissue growth in the autograft.

Aim: To compare the recurrence rate of pterygium after excision with free conjunctival autograft versus amniotic membrane graft. Methods: The present study was a comparative, randomised prospective study. One hundred patients who presented with primary pterygium during the study period were randomly assigned to one of the two groupsone group (comprising of 50 patients) underwent pterygium excis...

OBJECTIVE To evaluate the safety, efficacy, and recurrence of pterygium following 90 degrees versus zero degrees and 180 degrees rotation autograft for treating primary pterygium. METHODS We included in this observational, prospective, and comparative study, 74 patients (47 males, 27 females) with advanced primary pterygium, with a mean age of 47.5 years (range 19-79 years). This study was co...

AIMS We analysed the outcome of young adults with congenital aortic valve disease who underwent allograft or autograft aortic valve or root replacement in our institution and evaluated whether there is a preference for either valve substitute. METHODS AND RESULTS Between 1987 and 2007, 169 consecutive patients with congenital aortic valve disease aged 16-55, participating in our ongoing prosp...

UNLABELLED In 38 consecutive patients the pulmonary autograft was used in aortic root replacement. Investigations were performed with transthoracic echocardiography, transoesophageal echocardiography and magnetic resonance imaging in 31, 27 and 27 patients respectively. The mean age at operation was 28.7 years (range 19.0-52.0) and the follow-up period was 2.8 years (range 0.8-6.7). The pulmona...

BACKGROUND Prior studies suggest the cost of allograft anterior cruciate ligament (ACL) reconstruction is less than that for autograft reconstruction. Charges in these studies were influenced by patients requiring inpatient hospitalization. QUESTION/PURPOSE: We therefore determined if allograft ACL reconstruction would still be less costly if all procedures were performed in a completely outpat...

PURPOSE To compare the results and outcome of anterior cruciate ligament (ACL) reconstruction using autogenous hamstring tendon versus fresh-frozen allograft anterior tibialis tendon. METHODS A prospective randomized study was conducted from September 2002 to October 2006. We randomized 147 patients to undergo ACL reconstruction with either autogenous hamstring or fresh-frozen allograft anter...

BACKGROUND Much controversy still exists surrounding graft choice in anterior cruciate ligament (ACL) reconstruction. Over the past decade, an increase in comparative studies with longer follow-up has enhanced our understanding of current graft options and outcomes. PURPOSE To describe the long-term comparative outcomes of ACL reconstruction with autograft bone-patellar tendon-bone (BPTB) ver...