Biologic valve re-replacement was examined in a series of 1343 patients who underwent aortic valve replacement at The Prince Charles Hospital, Brisbane, with a cryopreserved or 4 degrees C stored allograft valve or a xenograft valve. A parametric model approach was used to simultaneously model the competing risks of death without re-replacement and re-replacement before death. One hundred eleve...

BACKGROUND Fresh osteochondral allografts represent a treatment option for early ankle posttraumatic arthritis. Transplanted cartilage survivorship, integration, and colonization by recipient cells have not been fully investigated. The aim of this study was to evaluate the ability of recipient cells to colonize the allograft cartilage and to assess allograft cell phenotype. METHODS Seventeen ...

Structural bone allograft has been used in bone defect reconstruction during the last fifty years with acceptable results. However, allograft selection methods were based on 2-dimensional templates using X-rays. Thanks to preoperative planning platforms, three-dimensional (3D) CT-derived bone models were used to define size and shape comparison between host and donor. The purpose of this study ...

INTRODUCTION The aim of the study was to compare and analyze retrospectively the outcomes of arthroscopic posterior cruciate ligament reconstruction with autograft versus allograft. MATERIAL AND METHODS Seventy-one patients who underwent arthroscopic posterior cruciate ligament reconstruction with an autograft or allograft met our inclusion criteria. There were 36 patients in the autograft gr...

 Abstract  Background: Despite the long-standing association of macrophage migration inhibitory  factor (MIF) with delayed-type hypersensitivity response, the potential role  of MIF in chronic allograft nephropathy is unknown. The association between upregulation of MIF expression, macrophage and T cell infiltration and the severity of  chronic allograft nephropathy suggests that MIF may be an ...

BACKGROUND Long-term studies of posterior cruciate ligament (PCL) reconstruction suggest that normal stability is not restored in the majority of patients. The Achilles tendon allograft is frequently utilized, although recently, the quadriceps tendon has been introduced as an alternative option due to its size and high patellar bone density. PURPOSE/HYPOTHESIS The purpose of this study was to...

Keywords superior capsular reconstruction, superior, shoulder capsule, SCR, rotator cuff tear, fascia lata autograft, dermal allograft

Bulk allograft reconstruction plays an important role in limb-salvage reconstructive surgery but is complicated by nonunion in up to one-third of cases. Because allograft-host healing is mediated via creeping substitution, intimate bone contact is desirable. Intraoperative assessment and optimization of the allograft-host junction site using a conventional transverse osteotomy is challenging an...

Intratubular calcification is a common finding in renal allografts. However, possible harmful effect of this calcification is not well recognized, and allograft failure purely due to this condition has not been reported. We report a kidney transplant recipient who suffered from severe secondary hyperparathyroidism and unexplained early allograft failure. A diagnosis of acute phosphate nephropat...

We report a surgical case of infected thoracic aortic aneurysm. Before arrival of the cryopreserved aortic allograft, the patient had hemoptysis resulting from aneurysm rupture. Therefore endovascular stent grafting was urgently performed three days prior to in situ allograft implantation. Palliative stent grafting prevented circulatory collapse and stabilized the patient until successful allog...