8Gilbert TB, Hawkes WG, Hebel JR, et al. Spinal anesthesia versus general anesthesia for hip fracture repair: a longitudinal observation of 741 elderly patients during 2 - year follow-up[J]. Am J Orthop, 2000, 29(1): 25-35.
9Minville V, Fourcade O, Grousset D, et al. Spinal Anesthesia Using Single Injection Small - Dose Bupivacaine Versus Continuous Catheter Injection Techniques for Surgical Repair of Hip Fracture in Elderly Patients [ J ]. Anesth Analg, 2006,102(5) :1 559-1 563.