Proximal humeral fractures: association between displacement and fatty degeneration of the supraspinatus muscle.

INTRODUCTION: To evaluate the relationship between initial displacement in proximal humeral fractures and fatty degeneration of the rotator cuff measured by CT according to the Goutallier classification. MATERIAL AND METHODS: This cross-sectional observational study evaluated patients with proximal humeral fractures over a six-month period. The study included patients ≥ 18 years old with complete radiological views (anteroposterior, lateral, and Grashey) and a CT scan of the affected shoulder; previous fracture or ipsilateral shoulder surgery were excluded. Neer's classification system and Goutallier stages were used to evaluate the patients. Demographic data were collected and, two groups were analysed according to age (≤ 50 years and > 50 years). RESULTS: Sixty-two patients were included (m = 36, f = 26, ratio 1.3:1); seven patients were excluded. Male patients (36, 58.1%), patients older than 50 years (33, 53.2%) and a low-energy injury mechanism (36, 58.1%) were the most frequent cases. According to the Neer system, the most common proximal humerus fracture was fracture-dislocation in 17 (27.4%) cases. The most common stage in Goutallier's classification was I (some fatty streaks) in 22 (35.4%) cases. Younger patients (≤ 50 years) had more displaced fractures with low fatty degeneration (p = < 0.001) than older patients (> 50 years), who had minimally displaced fractures with greater fatty degeneration (p = 0.567). CONCLUSIONS: High-energy mechanisms are associated with younger patients and a more displaced fracture according to the Neer classification. Older patients had a more advanced Goutallier stage and lesser displaced fracture. We should consider a more aggressive approach in the treatment of non-displaced fractures in elderly patients, less conservative and more surgical management, to obtain a better clinical evolution after the treatment of these kinds of fractures. LEVEL OF EVIDENCE: IV.

Intususcepción como complicación de bypass en Y de Roux en pacientes embarazadas, una complicación infrecuente. Reporte de caso y revisión de la literatura.

La obesidad es actualmente un problema de salud pública de ámbito internacional. Es considerada como la segunda causa de muerte prevenible en México, después del tabaquismo, según la Organización Mundial de la Salud. Actualmente, las opciones quirúrgicas son la gastrectomía en manga, el bypass gástrico o derivación gástrica, la banda gástrica y el bypass gástrico en omega, cada una con sus indicaciones. Se presenta el caso clínico de una paciente con intususcepción yeyuno-yeyunal secundaria a bypass gástrico en el embarazo.Obesity is currently an international public health problem. It is considered the second preventable cause of death in Mexico, after smoking, according to the World Health Organization. Currently, surgical options are sleeve gastrectomy, gastric bypass or gastric derivation, gastric banding, and omega gastric bypass, each with specific indications. The objective of the article is to present the clinical case of a patient with jejuno-jejunal intussusception secondary to gastric bypass in pregnancy.

Obesity-related non-alcoholic steatohepatitis and TGF-beta1 serum levels in relation to morbid obesity.

Non-alcoholic steatohepatitis (NASH) can vary from mild hepatic inflammation and steatosis to cirrhosis, and is most frequently associated with obesity, Type 2 diabetes mellitus, hypertension, and the female gender. The prevalence of fatty liver and NASH in the general population is 20% and 3%, respectively. In Western countries, 15-20% of the population is obese and 74-90% of them exhibit fatty changes in liver biopsies. We assessed the prevalence of NASH in morbidly obese patients and evaluated serum TGF-beta1 concentrations in different stages of liver fibrosis. Thirty-five obese patients were evaluated, nine male and 26 female. Their mean body mass index (BMI) was 43.62 +/- 7.92 kg/m2. Liver biopsies were evaluated by light microscopy; graded and staged according to Brunt's system. Serum obtained from patients was used to detect TGF-beta1 concentrations by an ELISA method. Serum alanine transaminase (ALT) levels were elevated in four of the patients and the mean level was 49.98 +/- 94.7 (8-65 IU/L). NASH was diagnosed in 32 (91%) of the biopsies, and the most common pattern seen was mixed, predominantly macrovesicular steatosis. Some degree of fibrosis was seen in 34 (97%) of the biopsies and 22 (63%) were at stage 2 (range 1-3). Serum concentrations of TGF-beta1 had no relationship with the stages of fibrosis. In conclusion, NASH and fibrosis are common in our obese patients, as observed in other studies. TGF-beta1 may play a key role in liver fibrogenesis.

Fractura de Colles: correlación anatomo-funcional mediante el esquema de Green y O'Brian / Colles's fracture: anatomo-functional correlationship based upon the Green and O'Brian scale

Objetivo. Comparar los resultados anatómicos con los clínicos en pacientes tratados por fractura de Colles unilateral, según los criterios de Green y O'Brian. Material y métodos. De 30 pacientes con fractura de Colles unilateral tratados de marzo a julio de 1998, se presenta una serie de 19 por llenar criterios de inclusión al no tratarse de fracturas con antecedentes patológicos. Se comparó su estudio clínico y radiográfico inicial y final y los pacientes llenaron un cuestionario de evaluación personal de su resultado. Resultados. Independientemente del tratamiento, que fue cerrado en 17 de los 19 casos, los resultados fueron excelentes en 31 por ciento, buenos en 15 por ciento, regulares en 26 por ciento y malos en 26 por ciento. Asimismo, la correlación se pudo establecer en 52 por ciento (10 casos) y no así en los restantes nueve, ya fuera por un mal resultado radiológico y buen curso clínico o viceversa. Conclusión. No existe regla absoluta entre resultado anatómico y funcional. El mejor resultado funcional se obtiene en los casos que se apegaron estrictamente al programa domiciliario de rehabilitación.