Ferree BA, Wright AM.
Deep venous thrombosis following posterior lumbar spinal surgery.
Spine 1993 Jun 15; 18(8):1079-82

New England Baptist Hospital, Boston, Massachusetts.

Postoperative duplex scans were performed on 185 patients undergoing posterior
lumbar spinal surgery in order to identify deep venous thrombosis (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 not eliminated from either group. Laminectomy was
performed on 84 patients (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 incidence 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 age 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 pneumatic compression rather than elastic stockings for prophylaxis.