Gait changes after tendon functional surgery for equinovarus foot in patients with stroke: assessment of temporo-spatial, kinetic, and kinematic parameters in 177 patients.

OBJECTIVE: In patients with hemiplegic stroke, equinovarus foot is one of the most frequent deformities. Outcome evidence for surgical correction of equinovarus foot is scarce, and results are usually assessed only clinically. Moreover, concerns about possible loss of function after elongation of the plantar flexor muscles are still at issue. The objective of this study was to verify if surgical correction of equinovarus foot can improve gait speed and function. DESIGN: We used a retrospective, nonrandomized design. One hundred seventy-seven chronic hemiplegic patients who underwent surgical correction of equinovarus foot were evaluated before and 1 yr after surgery. Outcome measures were walking handicap score, temporal-spatial parameters, gait kinematics and kinetics, and paretic propulsion. RESULTS: After surgery, walking handicap and temporal-spatial parameters significantly improved, as did ankle kinematic data and gait kinetic data. Patients' gait at follow-up was faster, with a more normal base of support and with better foot advancement. Paretic propulsion increased significantly after surgery, even if ankle power at push-off was reduced. We also observed a low complication rate. CONCLUSIONS: Surgical correction of equinovarus foot deformity in patients with stroke is a safe and effective procedure. Even if the power generation at the ankle decreased, overall gait function and parameters improved after surgery.

Instrumental evaluation of gait modifications before and during intrathecal baclofen therapy: a 2-year follow-up case study.

Intrathecal baclofen therapy has been used for several years, despite the fact that long-term gait modifications in ambulatory patients have not been thoroughly investigated. A 31-yr-old male patient affected by hereditary spastic paraparesis was evaluated clinically and by gait analysis. Evaluations were made before and at 6, 12, 16, and 24 mos after implantation. The patient showed a clear improvement in self-selected speed, step and stride length, knee and ankle kinematics, and ankle kinetics. Moreover, the response observed on self-selected speed is consistent with the intrathecal baclofen dose administered. To our knowledge, this is the first report of a long-term instrumental gait analysis assessment of a patient receiving intrathecal baclofen. Gait analysis could be a reliable and feasible assessment tool to evaluate ambulatory patients receiving intrathecal baclofen therapy over time and to help clinicians in determining exact dose requirements.