in this prospective descriptive study, all patients with acute lower limb ischemia who presented to shohada tajrish hospital (sth) between july 200 1 and july 2003 were analyzed and followed for 6 months. the total population of 109 patients, with no significant difference in sexual distribution had a mean age of 64± 16 years. 23% had af and 31 % had a history of mi, 'but in the ecg of 30%...

Sexual dimorphism is regarded as the consequence of differential responses by males and females to selection pressures. Limb muscle plays a very important role during amplexus, which likely be under both natural sexual in anurans. Here, we studied effects on limb mass across 64 species The results showed that there were non-significant differences relative between sexes among species, exhibitin...

Many of the great morphologists of the nineteenth century marvelled at similarities between the limbs of diverse species, and Charles Darwin noted these homologies as significant supporting evidence for descent with modification from a common ancestor. Sir Richard Owen also took great care to highlight each of the elements of the forelimb and hindlimb in a multitude of species with focused atte...

In the last few decades signiÞ cant advances have occurred in the diagnosis and therapy of bone and soft tissue sarcomas of the extrimities, which has made it possible to avoid amputations and conserve the limb in many cases. But careful case selection has to be done and consideration has to be given to the inß uence of adjuant modalities needed in the management.This article reviews the variou...

Developing supernumerary limbs is a rare congenital condition that only a few cases have been documented. Depending on the cause and developmental conditions, they may be single, multiple or complicated, and occur as a syndrome or associated with other anomalies. Polymelia is defined as the presence of extra limb(s) which have been reported in human, mouse, chicken, calf and lamb. It seems that...

The independent evolution of similar morphologies has long been a subject of considerable interest to biologists. Does phenotypic convergence reflect the primacy of natural selection, or does development set the course of evolution by channelling variation in certain directions? Here, we examine the ontogenetic origins of relative limb length variation among Anolis lizard habitat specialists to...

In underwater diving, decompression schedules are based on compartmental models of nitrogen and helium tissue kinetics. However, these models are not based on direct measurements of nitrogen and helium kinetics. In isoflurane-anesthetized sheep, nitrogen and helium kinetics in the hind limb (n = 5) and brain (n = 5) were determined during helium-oxygen breathing and after return to nitrogen-oxy...

BACKGROUND Osteosarcoma is a high malignant neoplasm, and conflicting findings have been reported on the survival and function recovery of osteosarcoma patients experiencing limb salvage or amputation. In the present study, we compared limb salvage surgery (LSS) with amputation in clinical outcomes of osteosarcoma patients by a meta-analysis. METHODS The survival rate of osteosarcoma patients...

One hundred and one patients with through-knee amputations attending the Manchester limb-fitting centre are reviewed. Most amputations were performed for trauma or vascular disease. The interval from amputation to measurement for the first prosthesis averaged 12 weeks in cases of primary healing, and 21 weeks when healing was delayed. Artificial limbs were successfully fitted to 83%, and only 1...