abstract background: keratoconus is a bilateral corneal disease, which one way to cure it is to transplant. the transplantation may be rejected by recipient's immune system, which leads to failure of the graft. this study aimed to analysis the factors affecting bilateral corneal graft rejection based on copula function. methods: a sample of bilateral graft rejection times was assessed. since co...

Background: Peripheral vascular injury associated with lower limb trauma is a well-known emergency. The experience for the management of popliteal artery trauma have mainly come from managing the traumas of military personnels during Iran-Iraq war. The present study compared the effects of two currently-used surgical techniques in the management of popliteal trauma, namley femoropopliteal bypas...

The purpose of this paper is to give a brief survey the implications of the theories of modern physics for the doctrine of determinism. The survey will reveal a curious feature of determinism: in some respects it is fragile, requiring a number of enabling assumptions to give it a fighting chance; but in other respects it is quite robust and very difficult to kill. The survey will also aim to sh...

OBJECTIVE To examine the impact of residual pain on functional outcomes two years after arthroscopic anterior cruciate ligament (ACL) reconstruction and compare the types of graft used during the procedure (patellar vs. flexor). METHOD A retrospective epidemiological study on 129 ACL reconstructions with a mean follow-up of 28 months was conducted. The presence, intensity and location of the ...

Background Scapholunate reconstruction poses a challenge to orthopedic surgeons. Materials and Methods Prospective cohort. Description of Technique Our technique for scapholunate (SL) reconstruction involves ligament reconstruction utilizing a portion of the flexor carpi radialis tendon rerouted via transosseous tunnels across the scaphoid, lunate, and triquetrum (scapholunotriquetral tenodesis...

PURPOSE Severe neck contracture is a problem that must be resolved by priority. We consider the best contracture treatment to be the full-thickness skin graft. However, clinicians often encounter patients, especially extensive burn patients, who have insufficient donor sites for the full-thickness skin graft. We treated extensive burn patients with neck scar contractures with a split-thickness ...

OBJECTIVE To determine if a dual-purpose bone graft can regenerate bone and reduce infection in highly contaminated bone critical size defects in rats. METHODS Biodegradable polyurethane (PUR) scaffolds were loaded with recombinant human bone morphogenetic protein-2 (BMP-2) and vancomycin (Vanc). The release kinetics of the BMP-2 were tuned to take advantage of its mechanism of action (ie, an...