提高自体软骨移植物活性的研究进展

软骨移植物主要包括自体软骨、同种异体软骨、冷冻同种胚胎软骨、骨膜、软骨膜和生物材料等。但软骨移植存在许多缺陷,如供区继发性病变、进行性供区结构异常、移植物弯曲变形,移植物吸收与存活等问题。本文就提高自体软骨移植物活性的方法,包括软骨碎片或颗粒移植和包裹技术等进行综述。     

Characteristics of emergency department transfers for hand surgery consultation

Background

The purpose of this study was to establish the characteristics of patients who are transferred from referring emergency departments (EDs) to two receiving institutions for hand-related emergencies. Our primary hypothesis was that many transferred patients would not require emergent specialty intervention. Our secondary hypotheses were that treatment would differ by day of presentation and type of insurance coverage.

Methods

We searched ED records for all hand-related cases over 1 year. We reviewed charts for demographics and treatment details. The main outcome measures were whether patients were seen by a hand surgeon or underwent surgery within 24 h of transfer.

Results

The study group comprised 296 patients. Ninety-two percent saw a specialty resident, and 48 % saw a hand surgeon. Thirty-nine percent of patients were taken to the operating room within 24 h of presentation. Of patients transferred on the weekends, 48 % saw a hand surgeon versus 61 % of those transferred on weekdays. Similarly, 51 % of patients transferred on a weekday were taken to the OR within 24 h, while 38 % of patients transferred on a weekend were taken to the OR in the same time frame.

Conclusions

More than half of transfers for hand emergencies did not result in examination by a hand surgeon, and nearly two thirds did not require a visit to the OR within 24 h. Patients transferred on the weekend were less likely to see a hand surgeon than those transferred on weekdays. Alternative methods of consultation might allow avoidance of transfer.