Deep-vein thrombosis and continuous passive motion after total knee arthroplasty.

Continuous passive motion compared to active physical therapy after knee arthroplast:Similar hospitalization times in a randomized study of 68 patients

“…Basso and Knapp (1987) found no improvement in knee motion in patients receiving CPM 20 hours daily compared with 5 hours. When CPM was prescribed for as long as the patient could tolerate, the averagc time was 1 0 hours daily from the third postoperative day (Lynch et al 1988). For practical reasons+.g., patients leaving the ward for radiographic examinations-we found strict continuous treatment difficult to perform.…”

“…These benefits were also noted by Coutts et al (1984) in a prospective study of 82 patients. One randomized study (Colwell and Morris 1992) reported a decreased length of hospital stay while others could not reproduce the favorable influence of CPM (Lynch et al 1988, Nielsen et al 1988, although an initial improvement in ROM during the early postoperative period was demonstrated (Vince et al 1987). The duration of hospitalization, postoperative pain and knee swelling are related to knee motion.…”

Toxic effects of methylmethacrylate monomer on leukocytes and endothelial cells in vitro

“…in particular at the site of cemented areas (Staniatakis et al 1977, Rinecker 1980, Ferris and Kinsella 1984, Dahl et al 1988a. Lynch et al 1988, Duncan 1989. Francis et al 1989.…”

“…compared to non-cemented total joint replacements (Stamatakis et al 1977, Lynch et al 1988, Francis et al 1989, Hogevold et al 1990). Recently we have demonstrated that MMA in doses equivalent to blood concentrations found in patients during total hip replacement (THR) (Svartling et al 1985, Wenda et al 1988, Dahl et al 1992a) modulate blood coagulation triggering in different ways (Dahl et al 1992b).…”

Lower thrombosis risk with epidural blockade in knee arthroplasty

“…The incidence of deep venous thrombosis associated with knee arthroplasty is about 50 percent without prophylactic treatment (McKenna et al 1976, Lotke et al 1984, Stulberg et al 1984, Lynch et al 1988, Stringer et al 1989. Unlike morphine, regional local anesthetics produce a hyperkinetic lower limb circulation, and both spinal and epidural regional anesthesia reduce the incidence of thrombosis and pulmonary embolism following hip surgery (Davis et al 1980, Thorbum et al 1980, Davis et al 1989).…”