[Rehabilitation after lumbar intervertebral disk operation]

122 patients were admitted 3 months after a lumbar disc operation to a rehabilitation clinic. Conservative treatment during the rehabilitation induced a decrease of low back pain (70 out of 107 patients), of paresis (30/51 patients), and of paresthesia (51/77 patients). More than 20 pre- and post-operative variables were tested with a rank-variance analysis regarding a possible influence on efficacy of the rehabilitation treatment. The success of the conservative treatment measured by improvement of paresis, paresthesia, pain and mobility of lumbar spine was influenced favourably by preoperative paresis (p less than 0.03). Women showed more often than men an improvement of paresis (p = 0.006) immediately after surgery. Patients with a preoperative paresis had a shorter history of radicular symptoms (p = 0.002), an acute onset was seen more often in patients with persistent paresis (p = 0.019). Paresthesia was found more frequently before surgery (p = 0.010) and at begin of rehabilitation (p = 0.006) in patients with paresis compared to patients without paresis. A statistically significant association was also evaluated between decreased lumbar mobility and laminectomy (p = 0.007). Patients with L5/S1 disc operation had a longer duration of radicular symptoms (p = 0.012), a decreased frequency of paresis (p = 0.040), but more often paresthesia (p = 0.001) compared with L4/5 operation.