Using isokinetic dynamometry for treatment patients with compression radiculopathy after surgical treatment L4-L5 herniated disc

Abstract

Purpose was to evaluate the dynamics of the L5 root restoration. 17 patients (46,3 years old) with L4-L5 disc herniation and with L5 compression radiculopathy. A diagnostic test was the isokinetic dynamometry system by Humac of the hip and shin muscles in comparison with the healthy limb. The patient was tested before an operation, 1 month after microdiscectomy and 1 month after rehabilitation. Isokinetics and isometry in eccentricity and concentricity at the maximum torque (MT), joint angle with MT (JAMT) in the thigh and shin muscles were estimated. Isokinetic. M.Tibialis ant: Concentric: MT (before surgery vs 30 days after surgery vs 1 month after rehabilitation) 49.2Nm vs 60.1Nm vs 46.9Nm, JAMT -10.10 vs -16.30 vs -6.20. Eccentric: MT 53.3Nm vs 84.1Nm vs 43.4Nm, JAMT -22.10 vs -17.10 vs -220; Second part was isometry. M.Gastrocnemius: MT 5.2Nm vs 12Nm vs 15.4Nm, TRMT 1.75s. vs 0.9s vs 1.32s; M.Tibialis ant: MT 14Nm vs 28Nm vs 33.3Nm, TRMT 1.59s. vs 3.01s vs 1.7s; The comparison dynamics in intact legs was noted: M.Tibialis ant: Concentric: MT 53.2Nm vs 58.1Nm vs 41.6Nm, JAMT -11.10 vs -21.20 vs -30. Eccentric: MT 52.3Nm vs 65.1Nm vs 41.4Nm, JAMT -22.10 vs -20.10 vs -70; Second part was isometry. M.Gastrocnemius: MT 9.2Nm vs 12Nm vs 16.4Nm, TRMT 4.39s. vs 1.05s vs 1.64s; M.Tibialis ant: MT 19.1Nm vs 33.2Nm vs 28.3Nm. The isokinetic dynamometer system is an effective method and makes possible to evaluate muscular force and a joint range of motion in rehabilitation period.