Evaluación clinicorradiológica en hemiartroplastia de hombro / Clinical and radiological evaluation in hemiarthroplasty of the shoulder

Objetivo: Establecer los resultados funcionales y radiológicos a mediano plazo en pacientes con hemiartroplastia de hombro. Material y métodos: Se realizó un estudio transversal descriptivo con 25 pacientes operados de hemiartroplastia del hombro con artrosis glenohumeral de cualquier etiología, edad, sexo y ocupación. A todos los pacientes incluidos durante el período que va de noviembre a diciembre de 2002 se les realizó un abordaje deltopectoral y colocación de hemiprótesis modular cementada; de noviembre de 2000 a diciembre de 2002. Se les realizó una evaluación funcional (escala de Constant, 0-100 puntos) y radiológica en busca de “riesgo radiológico” de aflojamiento clínico protésico. Se realizó estadística descriptiva e inferencial para las variables del estudio. Resultados: La prevalencia de la patología quirúrgica fue del 0,4% del total de primeras consultas ortopédicas de primera vez, la edad promedio fue de 61,7 ± 12,49 años (rango: 32-85 años); sexo masculino, 8,6%, y femenino, 91,4%. La etiología más frecuente fue la degenerativa con 45,8% y el lado mas afectado fue el izquierdo, 54,3%. Con un seguimiento promedio de 19 ± 8,6 meses, la evaluación funcional fue de 60 ± 12 puntos; en la evaluación radiológica se identificó que el 20,8% de los pacientes presentaron “riesgo” radiológico para aflojamiento protésico, mientras que sólo el 4,2% de ellos no tuvieron línea de radiolucencia. Hubo mejoría estadísticamente significativa del dolor postoperatorio con respecto al preoperatorio (p < 0,05); la satisfacción promedio fue del 72%; hubo un 8,3% de complicaciones. Conclusión: En pacientes a los que aplicó hemiartroplastia de hombro, la funcionalidad del hombro operado se consideró como buena y la evaluación radiológica con resultado regular en pacientes con hemiartroplastia de hombro a medio plazo(AU)

Objective: To determine the medium-term functional and radiological results in patients with hemiarthroplasty of the shoulder. Material and methods: A descriptive cross-sectional study was performed in 25 patients with glenohumeral osteoarthritis of any etiology, age, sex and occupation who underwent hemiarthroplasty of the shoulder using a deltopectoral approach with placement of a cemented modular hemiprosthesis; between November 2000 and December 2002. Functional evaluation (Constant 0-100 points) and radiological assessment were performed to determine the “radiological risk” of prosthetic clinical loosening. Descriptive and inferential statistics for the study variables were performed. Results: The prevalence of surgical disease was 0.4% of all first-time orthopedic consultations. The mean age was 61.7 ± 12.49 (range 32-85 years); men accounted for 8.6% and women for 91.4%. The most frequent etiology was degenerative (45.8%). The most frequently affected side was the left (54.3%). With a mean follow-up of 19 ± 8.6 months, functional evaluation was 60 ± 12 points; radiological evaluation showed that 20.8% of the patients presented “radiological risk” for prosthetic clinical loosening whereas only 4.2% showed no line of radiolucency. Postoperative pain was significantly lower than preoperative pain (p < 0.05); mean satisfaction was 72%. Complications occurred in 8.3%. Conclusion: The functionality of the operated shoulder was good and radiological evaluation showed satisfactory medium-term results in patients with hemiarthroplasty of the shoulder(AU)

[Clinical and radiological evaluation in hemiarthroplasty of the shoulder]. / Evaluación clinicorradiológica en hemiartroplastia de hombro.

OBJECTIVE: To determine the medium-term functional and radiological results in patients with hemiarthroplasty of the shoulder. MATERIAL AND METHODS: A descriptive cross-sectional study was performed in 25 patients with glenohumeral osteoarthritis of any etiology, age, sex and occupation who underwent hemiarthroplasty of the shoulder using a deltopectoral approach with placement of a cemented modular hemiprosthesis; between November 2000 and December 2002. Functional evaluation (Constant 0-100 points) and radiological assessment were performed to determine the "radiological risk" of prosthetic clinical loosening. Descriptive and inferential statistics for the study variables were performed. RESULTS: The prevalence of surgical disease was 0.4% of all first-time orthopedic consultations. The mean age was 61.7±12.49 (range 32-85 years); men accounted for 8.6% and women for 91.4%. The most frequent etiology was degenerative (45.8%). The most frequently affected side was the left (54.3%). With a mean follow-up of 19±8.6 months, functional evaluation was 60±12 points; radiological evaluation showed that 20.8% of the patients presented "radiological risk" for prosthetic clinical loosening whereas only 4.2% showed no line of radiolucency. Postoperative pain was significantly lower than preoperative pain (p<0.05); mean satisfaction was 72%. Complications occurred in 8.3%. CONCLUSION: The functionality of the operated shoulder was good and radiological evaluation showed satisfactory medium-term results in patients with hemiarthroplasty of the shoulder.

[An evaluation of the Reflotron portable analyzer for cholesterol determination in primary care]. / Evaluación de un analizador portátil, reflotron, para la determinación del colesterol en atención primaria.

We have evaluated serum cholesterol in a primary care center with a recently introduced portable analyzer: Reflotron (Boehringer Mannheim). The linearity and exactitude were investigated with Hitachi 704 (Boehringer Mannheim) used in the reference laboratory. Accuracy was also tested. We found a good accuracy after repeated analysis (n = 30) of two control sera with a variation coefficient of 2.77% in the first (mean = 125.14 mg/dl, SD 3.47) and 2.94% (mean = 254.53 mg/dl, SD 7.49) in the second. We found an overall lack of accuracy of Reflotron with a more pronounced negative bias in capillary blood (mean d = 30.93 mg/dl, dSE 3.25) than in serum (mean d = dSE 1.12). We found a positive linear correlation both using serum (r = 0.9845; n = 45) and capillary blood (r = 0.9094; n = 30). We feel that Reflotron is useful for primary care due to its good accuracy and linearity regarding the reference method, but its inexactitud should be taken into account. We emphasize the need for quality control to investigate its limitations when the results are analyzed.