目的 探讨外伤性脾破裂非手术治疗的可行性、适应证及其治疗效果。 方法 回顾性分析我院1990年1月至2005年1月收治的外伤性脾破裂非手术治疗46例临床资料。结果 非手术治愈43例，3例因提前下床活动致大出血而中转手术，其中1例并发膈下脓肿，仍经保守治疗痊愈。无死亡病例。结论 在严格掌握适应证前提下非手术治疗外伤性脾破裂安全可行，年龄及腹腔外合并伤不是影响非手术治疗的主要因素。
ObjectiveTo study the feasibility of acellular matrix materials prepared from deer antler cartilage and its biological compatibility so as to search for a new member of the extracellular matrix family for cartilage regeneration. MethodsThe deer antler mesenchymal (M) layer tissue was harvested and treated through decellular process to prepare M layer acellular matrix; histologic observation and detection of M layer acellular matrix DNA content were carried out. The antler stem cells [antlerogenic periosteum (AP) cells] at 2nd passage were labelled by fluorescent stains and by PKH26. Subsequently, the M layer acellular matrix and the AP cells at 2nd passage were co-cultured for 7 days; then the samples were transplanted into nude mice to study the tissue compatibility of M layer acellular matrix in the living animals. ResultsHE and DAPI staining confirmed that the M layer acellular matrix did not contain nucleus; the DNA content of the M layer acellular matrix was (19.367±5.254) ng/mg, which was significantly lower than that of the normal M layer tissue [(3 805.500±519.119) ng/mg](t=12.630, P=0.000). In vitro co-culture experiments showed that AP cells could adhere to or even embedded in the M layer acellular matrix. Nude mice transplantation experiments showed that the introduced AP cells could proliferate and induce angiogenesis in the M layer acellular matrix. ConclusionThe deer antler cartilage acellular matrix is successfully prepared. The M layer acellular matrix is suitable for adhesion and proliferation of AP cells in vitro and in vivo, and it has the function of stimulating angiogenesis. This model for deer antler cartilage acellular matrix can be applied in cartilage tissue engineering in the future.