RESUMEN

Patellar chondropathy has a high incidence in the general population, being more common in patients younger than 50 years, female and recreational athletes, and overweight and obese patients. The most common complaints are pain, limited mobility, crepitus, difficulty climbing and descending stairs, and joint instability, usually showing unsatisfactory results with anti-inflammatory, physiotherapy, rehabilitation, and many other conservative treatment methods. The presumed hyaluronic acid (HA) disease-modifying activity may include effects on cartilage degradation, endogenous HA synthesis, synoviocyte and chondrocyte function, and other cellular inflammatory processes. Currently, HA is widely used as a safe and effective conservative treatment for osteoarthritis in the knee and other joints. HA improves the physiological environment in an osteoarthritic joint and the shock absorption and lubrication properties of the osteoarthritic synovial fluid, thus restoring the protective viscoelasticity of the synovial HA, reducing the pain, and improving the mobility. The complete mechanism of HA in the joint is not fully understood, but a wide range of actions in the joint is recognized. Its anti-inflammatory, analgesic, and chondroprotective action is related to the modulation of the intra- and extracellular inflammation cascade. HA has been shown to be safe and effective in the treatment of pain related to patellar chondropathy.

RESUMEN

OBJECTIVE: To define a profile of the muscle groups affected by patellofemoral pain syndrome (PFPS) to determine a pattern of functional weaknesses around the knee. METHODS: Sixty-three female patients were randomly selected, and 17 included in this study, receiving a clinical evaluation with pre-established protocol which evaluated the quadriceps, abductors, range of motion in the internal rotators and ankle dorsiflexors, pelvic tilt, and dynamic valgus. RESULTS: Losses were seen in abductor strength and ankle dorsiflexor range of motion in comparison with the contralateral limb (0.031 and 0.040, respectively). There was a loss of quadriceps strength and decreased amplitude of internal hip rotation when compared to the Kujala score (0.032 and 0.002, respectively). Dynamic valgus and pelvic fall were greater in comparison with the Kujala score (0.668 and 0.567, respectively). CONCLUSION: Clinical evaluation showed deficits in the quadriceps and abductor muscle groups, as well as decreased range of motion in the internal hip rotators and ankle dorsiflexors and increased dynamic valgus and pelvic drop. Level of Evidence IV; Case series.

OBJETIVO: Definir o perfil de acometimento de grupos musculares envolvidos na síndrome de dor patelofemoral (SDPF) a fim de determinar um padrão de fraqueza funcional em torno do joelho. MÉTODOS: Foram selecionados randomicamente 63 pacientes do sexo feminino, dos quais 17 foram incluídos no trabalho e submetidos a uma avaliação clínica com protocolo preestabelecido que avaliou quadríceps, abdutores, amplitude de movimento de rotadores internos e dorsiflexores de tornozelo, além de inclinação pélvica e valgo dinâmico. RESULTADOS: Houve déficit de força de abdutores e diminuição de amplitude do movimento de dorsiflexores de tornozelo em comparação com o membro contralateral (0,031; 0,040, respectivamente). Houve déficit de força de quadríceps e diminuição de amplitude de rotação interna do quadril quando em comparação com o escore de Kujala (0,032; 0,002, respectivamente). Verificou-se aumento do valgo dinâmico e queda pélvica com relação ao escore de Kujala (0,668; 0,567, respectivamente). CONCLUSÕES: Após avaliação clínica dos pacientes incluídos, observaram-se déficits dos seguintes grupos musculares: quadríceps e abdutores, além da diminuição da amplitude de movimento de rotadores internos do quadril e dorsiflexores de tornozelo; por fim, foram identificados aumento do valgo dinâmico e queda pélvica. Nível de Evidência IV; Série de casos.

RESUMEN

ABSTRACT Objective: To define a profile of the muscle groups affected by patellofemoral pain syndrome (PFPS) to determine a pattern of functional weaknesses around the knee. Methods: Sixty-three female patients were randomly selected, and 17 included in this study, receiving a clinical evaluation with pre-established protocol which evaluated the quadriceps, abductors, range of motion in the internal rotators and ankle dorsiflexors, pelvic tilt, and dynamic valgus. Results: Losses were seen in abductor strength and ankle dorsiflexor range of motion in comparison with the contralateral limb (0.031 and 0.040, respectively). There was a loss of quadriceps strength and decreased amplitude of internal hip rotation when compared to the Kujala score (0.032 and 0.002, respectively). Dynamic valgus and pelvic fall were greater in comparison with the Kujala score (0.668 and 0.567, respectively). Conclusion: Clinical evaluation showed deficits in the quadriceps and abductor muscle groups, as well as decreased range of motion in the internal hip rotators and ankle dorsiflexors and increased dynamic valgus and pelvic drop. Level of Evidence IV; Case series.

RESUMO Objetivo: Definir o perfil de acometimento de grupos musculares envolvidos na síndrome de dor patelofemoral (SDPF) a fim de determinar um padrão de fraqueza funcional em torno do joelho. Métodos: Foram selecionados randomicamente 63 pacientes do sexo feminino, dos quais 17 foram incluídos no trabalho e submetidos a uma avaliação clínica com protocolo preestabelecido que avaliou quadríceps, abdutores, amplitude de movimento de rotadores internos e dorsiflexores de tornozelo, além de inclinação pélvica e valgo dinâmico. Resultados: Houve déficit de força de abdutores e diminuição de amplitude do movimento de dorsiflexores de tornozelo em comparação com o membro contralateral (0,031; 0,040, respectivamente). Houve déficit de força de quadríceps e diminuição de amplitude de rotação interna do quadril quando em comparação com o escore de Kujala (0,032; 0,002, respectivamente). Verificou-se aumento do valgo dinâmico e queda pélvica com relação ao escore de Kujala (0,668; 0,567, respectivamente). Conclusões: Após avaliação clínica dos pacientes incluídos, observaram-se déficits dos seguintes grupos musculares: quadríceps e abdutores, além da diminuição da amplitude de movimento de rotadores internos do quadril e dorsiflexores de tornozelo; por fim, foram identificados aumento do valgo dinâmico e queda pélvica. Nível de Evidência IV; Série de casos.