Multiple Dimensions Define Thresholds for Population Resilience of the Eastern Oyster, .

A species' distribution depends on its tolerance to environmental conditions. These conditions are defined by a minimum, maximum, and optimal ranges of single and combined factors. Forays into environmental conditions outside the minimum or maximum tolerance of a species (i.

[Conventional radiology in the choice of surgical treatment of gonarthrosis].

Gonarthrosis is a pathologic condition the incident of which is high in people over 50. Its etiologic factors are varus-valgus deformities, traumatic lesions, meniscal tears, osteochondritis, and metabolic diseases. The authors report their experience with the setting of a radiographic protocol for the study of 100 patients over 50.

Extraarticular reconstruction in the treatment of chronic lesions of the anterior cruciate ligament.

The authors report the results of 40 patients treated with Lemaire extraarticular reconstruction for chronic anterior instability of the knee. The rate of success was 80%. The negative results did not have one single explanation, but were caused by either objective or subjective factors depending on the case.

The use of scintigraphy with Tc 99 pyrophosphate for the evaluation of meniscal lesions.

The preliminary results obtained in a study of the use of scintigraphy with Tc 99 PYP for the evaluation of meniscal lesions of the knee are presented. Three different captation curves are described. Those with an elevated peak and a restricted base are characteristic of meniscal lesions.

Massive discoid medial meniscus. A case report.

Only eight cases of massive discoid meniscus have previously been published in the English literature. Our case had a tear and was diagnosed by arthroscopy.