Resumo

GONZALEZ MORAN, Fernando. Artroplastia de rodilla en pacientes con poliomielitis y déficit de extensores. Revisión y experiencia en nueve casos. Rev. Asoc. Argent. Ortop. Traumatol. [online]. 2022, vol.87, n.5, pp.667-675. ISSN 1852-7434.  http://dx.doi.org/https://doi.org/10.15417/issn.1852-7434.2022.87.5.1646.

Objectives: To report the clinical and functional outcomes of patients affected with postpolio syndrome (PPS) treated with total knee arthroplasty, evaluating whether the choice of the prosthesis is conditioned by the quadriceps functional deficit. Materials and Methods: Patients with PPS were evaluated in their muscle deficit condition and with functional tests such as 10-meter walk test (10MWT), 2-minute walk test (2MWT) and timed up and go test (TUG), as well as KSS preoperatively and 1 year after knee arthroplasty. Results: All patients significantly improved functional values ​that directly impacted their quality of life. The KSS did not present significant differences between the most severe cases with quadriceps deficit with recurvatum and those with less involvement, but the functional tests did show a significant difference between these subgroups. Conclusions: Total knee arthroplasty is a valid treatment alternative in this complex pathology, providing the patient with pain relief, recovery of function and improving their quality of life. The restoration of stability through constrained prosthetic designs is a key factor in the recovery of a functional gait pattern in patients with recurvatum. Patients with quadriceps strength who overcome the resistance of gravity have functional outcomes comparable to non-PPS patients and do not require hinged prostheses.

Palavras-chave : Poliomyelitis; total knee arthroplasty; rotating hinge.

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