Physico-chemical and biological treatment of a dairy liquid effluent.

The effluent dairy industries are among the most organic-rich food waste. With high values of lactose, proteins, vitamins and minerals, it is a favorable medium for the growth of microorganisms such as fecal coliforms and streptococci. In addition, it has high levels of COD, total nitrogen and total phosphorus that indicates a significant pollution of the ecosystems where it is drained. This study focuses on the treatment of dairy effluent by two different methods. The first is a physicochemical treatment by coagulation, flocculation; using aluminum sulphate and sodium alginate. While the second process is a biological treatment using Pseudomonas fluorescens and Bacillus spp. The results show a decrease of about 30% of chemical oxygen demand, 49% of turbidity, 78% of suspended solids and 20% of the total phosphorus. The second process has shown a significant reduction of all parameters better than the physico-chemical treatment, with fluctuations in efficacy between the strains tested. In conclusion, we have developed biotechnological processes, which are simple, economical and environmentally friendly for treating the discharges of the dairy industry and reduce polluting factor

Peroneal Nerve Palsy due to Bulky Osteochondroma from the Fibular Head: A Rare Case and Literature Review

Common peroneal neuropathy is the most common compressive neuropathy in the lower extremities. The anatomical relationship of the fibular head with the peroneal nerve explains entrapment in this location. We report the case of a 14-year-old boy admitted with a left foot drop. The diagnosis was an osteochondroma of the proximal fibula compressing the common peroneal nerve. The patient underwent surgical decompression of the nerve and resection of the exostosis. Three months postoperatively, there was a complete recovery of the deficits. The association of osteochondroma and peroneal nerve palsy is rare. Early diagnosis is required in order to adjust the management and improve the results. It is worth to underscore that surgical resection is proven to be the appropriate treatment method ensuring high success rates.</jats:p

Peroneal Nerve Palsy due to Bulky Osteochondroma from the Fibular Head: A Rare Case and Literature Review

Common peroneal neuropathy is the most common compressive neuropathy in the lower extremities. The anatomical relationship of the fibular head with the peroneal nerve explains entrapment in this location. We report the case of a 14-year-old boy admitted with a left foot drop. The diagnosis was an osteochondroma of the proximal fibula compressing the common peroneal nerve. The patient underwent surgical decompression of the nerve and resection of the exostosis. Three months postoperatively, there was a complete recovery of the deficits. The association of osteochondroma and peroneal nerve palsy is rare. Early diagnosis is required in order to adjust the management and improve the results. It is worth to underscore that surgical resection is proven to be the appropriate treatment method ensuring high success rates

Maladie de Freiberg : utilisation de l’ostéosuture pour fixer l’ostéotomie dorsale cunéiforme intra-articulaire : série rétrospective de 17 cas

L’ostéotomie de Gauthier est le traitement chirurgical conservateur de référence de la maladie de Freiberg. Une grande variabilité de fixation peut être appliquée après cette ostéotomie dorsale. On a revu les scores cliniques et radiologiques d’une série consécutive de 17 patients souffrant de la maladie de Freiberg qui ont bénéficié d’une ostéotomie dorsale cunéiforme au niveau de la tête métatarsienne fixée par ostéosuture, de décembre 2010 à janvier 2016. L’âge moyen était de 27,3 ± 6,6 ans. Le stade de Smillie variait entre II et IV. Les résultats cliniques ont été évalués par le score d’AOFAS, la satisfaction subjective du patient et la mobilité métatarsophalangienne. Sur des radiographies standard postopératoires, on a mesuré le raccourcissement métatarsien et évalué la sphéricité de la tête métatarsienne et la consolidation osseuse. Le recul moyen était de 44,5 ± 16,9 mois. Le score d’AOFAS a augmenté significativement de 47,41 ± 12,3 à 87 ± 10,7 (p&lt; 0,0001). Tous les patients étaient satisfaits de l’intervention. La mobilité métatarsophalangienne a diminué sans gêne fonctionnelle. Aucune complication n’a été observée. Aucun patient n’a souffert d’une métatarsalgie de transfert. Toutes les ostéotomies sont consolidées. La congruence articulaire a été restaurée chez tous les patients. Le raccourcissement moyen était de 2 mm ± 0,57 (1–3 mm). L’ostéotomie dorsale cunéiforme intraarticulaire a prouvé son efficacité dans le traitement de la maladie de Freiberg. La fixation par ostéosuture est simple, peu onéreuse, évite une intervention chirurgicale supplémentaire pour ablation de matériel et les complications liées au matériel.</jats:p