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Introduction: The treatment of type III Masson radius head fractures is variable; there is not a clear solution., Material and Methods: This study addresses the course of patients treated with radius head replacement for type III Masson fractures at ISSEMYM Medical Center, Ecatepec, Mexico., Results: Four male patients were included; mean age was 34.5 years (range 28-41). The mechanism of injury was direct contusion; 3 of the elbows were left (75%) and one was right (25%). A bipolar uncemented prosthesis was used. According to Broberg and Morrey functional assessment criteria, patients had an excellent course. The mean time elapsed after surgery is 13 months., Conclusion: We concluded that the radius head prosthesis for type III Masson fractures is a good alternative. Patients may start rehabilitation right away, unlike what occurs with other surgical techniques.

Campylobacter jejuni is a common agent of enterocolitis in humans. Campylobacteriosis has been recognized as a zoonotic disease whose reservoir is the intestinal flora of poultry. The reposition of fluid and electrolytes is the recommended treatment, and antimicrobials are required only in severe and/or in prolonged disease. Given the emergence of resistance to drugs commonly used in the treatment of acute diarrhea, we studied the antimicrobial susceptibility of 73 strains of Campylobacter jejuni isolated from stool culture. The antimicrobials tested were: erythromycin, azithromycin, ampicillin and ciprofloxacin. Of the 73 strains tested by E-test, 32.4% were resistant to ciprofloxacin and 6.4% were resistant to ampicillin. Resistance to erythromycin and azithromycin was not detected. The surveillance of antimicrobial resistance of Campylobacter jejuni is important in the evaluation of empirically used antimicrobials in the treatment of bacterial enterocolitis.

Introduction: Freeman-Sheldon syndrome, described in 1938, is an infrequent form of arthrogryposis., Material and Methods: We reviewed the files of the patients with the diagnosis of Freeman-Sheldon syndrome from 1990 to 2003, and carried out an evaluation of the clinical data, family history and malformations of extremities., Results: 5 patients were included, 4 male and 1 female. Upper extremities: All patients presented adducted thumbs, 3 patients were treated with a first web release and dorsal graft with improvement of grip on larger objects. Feet: Four patients had severe bilateral rigid clubfeet, they were operated on with a posteromedial release and bilateral talectomy, satisfactory results were obtained in 4 of 6 feet according to Niki criteria. Other non orthopedic anomalies: In three patients unilateral right undescended testis; 1 right inguinal hernia., Conclusions: The patients have as common factor the whistler appearance, accompanied with mill crosses hand deformity, adducted thumbs, accompanied or not with inferior extremities deformities, intellectual capacity was normal.

Background: Methicillin resistant strains of Staphylococcus aureus (MRSA) are an important cause of nosocomial infections., Aim: To determine the genotypes of MRSA strains., Material and Methods: Fifty five strains of MRSA, isolated from patients hospitalized in Hospital Base Valdivia, were studied. The phenotype was determined through MicroScan in all strains and by minimum inhibitory concentration (MIC) in 41. The genotype of the strains was analyzed by a duplex polymerase chain reaction (PCR) of the mecA gene, amplifying eight hypervariable DNA regions associated to such gene., Results: According to MIC, 88% of strains had a pattern of resistance against multiple antimicrobial (penicillin, ampicillin, cephradine, gentamycin, ciprofloxacin, lincomycin and erythromycin). Vancomicin resistan strains were not detected. Only 53 strains (96%) had at least one of the eight hypervariable regions and were classified as MRSA. Genotypic patterns types 15 were the most commonly detected in 38% and 34% of strains, respectively. MicroScan erroneously classified five strains in an incorrect phenotype, according to results obtained with duplex PCR. MIC results did not differ from those of duplex PCR., Conclusions: Duplex- PCR is a useful tool to detect hyper variable regions associated to mecA gene.