1Majola A, Vainionpaa S, Rokkanen P, et al. Absorbable self-reinforced polylactide(SR-PLLA) composite rods for fracture fixation: strength and strength retention in the bone and subcutaneous tissue of rabbits[J ]. J Mater Sci Mater Med, 1992,3:43-47.
2Manninen MJ. Self-reinforced poly-L-lactide screws in the fixation of cortical bone osteotomies in rabbits[J]. J Mater Sei Mater Med. 1993,4 : 179-185.
3Mainil-Varlet P, Curtis R, Gogolewski S. Effect of in vivo and in vitro degradation on molecular and mechanical properties ofvarious low-molecular-weight polylactides[J ]. J Biomed Mater Res, 1997,36:360-380.
4Li SM, Vert M. Morphological changes resulting from the hydrolytic degradation of stereocopolymers derived from L-and DL-lactides[J ]. Macromolecules. 1994,27 : 3107-3110.
5Athanasion KA, Singhal AR, Agrawal CM. In vitro degradation and release characteristics of biodegradable implants containing trypsin inhibitor[J]. Clin Orthop, 1995,315:272-281.
6Gogolewski S. Liquid-induced crystallization and annealing of polyester-urethane elastomers[J ]. Colloid Polym Sci, 1978,256:323-331.
2Gould D, Kelly D, Goldstone L, et al. Examining the validity of pressure ulcer risk assessment scales : developing and using illustrated patient simulations to collect the data ~ J ] . J Clin Nuts, 2001, 10 ( 5 ) : 697-706.
3Maguire MF, Ravenscrofi A, Beggs D, et al. A questionnaire study investigating the prevalence of the neuropathic component of chronic pain after thoracic surgery [J] . Eur J Cardiothorac Surg, 2006, 29 ( 5 ) : 800-805.
4Gottschalk A, Cohen SP, Yang S, et al. Preventing and treating pain after thoracic surgery [ J ] . Anesthesiology, 2006, 104 ( 3 ) : 594- 600.
5Searl CP, Ahmed ST. Core Topics in Thoracic Anesthesia [ M ] .Cambridgeshire : Cambridge University Press, 2009 : 197.
6Shields TW, LoCicero J, Reed CE, et al. General thoracic surgery [ M ] . 6th ed. Philadelphia : Lippincott williams & Wilkins, 2005 : 412.
7Solak O, Metin M, Esme H, et al. Effectiveness ofgabapentin in the treatment of chronic post-thoracotomy pain [ J ] . Eur J Cardiothorae Surg, 2007, 32 ( 1 ) : 9-12.
9Gotoda Y, Kambara N, Sakai T, et al. The morbidity, time course and predictive factors for persistent post-thoracotomy pain [J] . Eur J Pain, 2001, 5 ( 1 ) : 89-96.
10Dajczman E, Gordon A, Kreisman H, et al. Long-term postthoracotomy pain [ J ] . Chest, 1991, 99 ( 2 ) : 270-274.