应用腹股沟带蒂皮瓣修复多指中节软组织缺损

目的 探讨多指中节软组织缺损的手术治疗方法。方法 总结 2 9例应用腹股沟连蒂皮瓣修复多指中节软组织缺损的手术治疗方法和效果。结果 2 9例皮瓣全部成活 ,3周后断蒂分指 ,一期剔薄皮瓣修复手指外形。随访 3～18个月 ,除 4例出现屈肌腱 区粘连 ,3个月后行粘连松解术 ,手的抓捏握持功能和外观均恢复满意。结论 腹股沟连蒂皮瓣是修复多指中节软组织缺损实用有效且可靠的方法 ,技术要求不高 ,适宜基层医院推广应用。

Nested Bethe Ansatz for Spin Ladder Model with Open Boundary Conditions

The nested Bethe ansatz (BA) method is applied to find the eigenvalues and the eigenvectors of the transfer matrix for spin-ladder model with open boundary conditions. Based on the reflection equation, we find the general diagonal solution, which determines the generalboundary interaction in the Hamiltonian. We introduce the spin-ladder model with open boundary conditions. By finding the solution K± of the reflection equation which determines the nontrivial boundary terms in the Hamiltonian, we diagonalize the transfer matrix of the spin-ladder model with open boundary conditions in the framework of nested BA.