DEEP VENOUS THROMBOSIS FOLLOWING POSTERIOR LUMBAR SPINAL SURGERY

Postoperative duplex scans were performed on 185 patients undergoing p osterior lumbar spinal surgery in order to identify deep venous thromb osis (DVT). Elastic compression stockings were used for prophylaxis in 74 patients (Group E.S.); intermittent pneumatic compression was used in the remaining 111 patients (Group P.C.). High-risk patients were n ot eliminated from either group. Laminectomy was performed on 84 patie nts (40 from Group E.S. and 44 from Group P.C.), and spinal fusion, on 101 patients (34 from Group E.S. and 67 from Group P.C.). A total of four patients, all from Group E.S., developed acute postoperative DVT. Intermittent pneumatic compression significantly reduced the incidenc e of acute postoperative DVT (P < 0.05). No statistically significant differences were found in the incidence of DVT in relation to the type of spinal procedure, length of procedure, duration of bed rest, or ag e of the patient. In conclusion, considering the low rate of DVT (2%) following posterior lumbar surgery and the potential complications of prophylactic anticoagulation, we continue to use intermittent pneumati c compression rather than elastic stockings for prophylaxis.