RESUMO

OBJECTIVE: To evaluate postoperative epidemiological and functional factors in patients operated to treat duplicate thumb. METHODS: This retrospective case series evaluated 20 patients (23 thumbs) treated from January 2012 to December 2016 at our service. Epidemiological and clinical factors were studied, including Tada score. RESULTS: Of the 34 children who were treated surgically, only 20 appeared for the functional evaluation and were included in the study. Of the operated cases, 60% were Wassel type 4. All evaluated cases had good functional results (Tada score ≥5, mean score: 6.65). The most frequently used surgical technique was resection of the radial thumb with reconstruction of the radial collateral ligament (47.8% of cases). CONCLUSION: Surgical correction of duplicated thumb yields good results, as long as attention is paid to abnormalities in bones, ligaments, and tendons. Level of Evidence IV; Case series.

OBJETIVO: Avaliar os fatores epidemiológicos e funcionais pós operatórios dos pacientes operados por duplicação de polegar. MÉTODOS: Essa é uma série retrospectiva de casos em que foram avaliados 20 pacientes (23 polegares), operados entre janeiro de 2012 e dezembro de 2016, no Hospital Menino Jesus/ SP. Foram estudados fatores epidemiológicos e clínicos, dentre os quais o score funcional de Tada. RESULTADOS: Das 34 crianças operadas, apenas 20 compareceram para avaliação funcional. Dos casos operados, 60% eram Wassel tipo 4. Todos os casos avaliados obtiveram resultado funcional bom (Tada maior ou igual a 5), com score médio de 6,65. A técnica cirúrgica mais utilizada foi a ressecção do polegar radial com reconstrução do ligamento colateral radial, presente em 47,8% das vezes. CONCLUSÃO: A correção cirúrgica da duplicação de polegar cursa com bons resultados, desde que se atente para as anormalidades osteoligamentares e tendíneas. Nível de Evidência IV; Série de casos.

RESUMO

ABSTRACT Objective To evaluate postoperative epidemiological and functional factors in patients operated to treat duplicate thumb. Methods This retrospective case series evaluated 20 patients (23 thumbs) treated from January 2012 to December 2016 at our service. Epidemiological and clinical factors were studied, including Tada score. Results Of the 34 children who were treated surgically, only 20 appeared for the functional evaluation and were included in the study. Of the operated cases, 60% were Wassel type 4. All evaluated cases had good functional results (Tada score ≥5, mean score: 6.65). The most frequently used surgical technique was resection of the radial thumb with reconstruction of the radial collateral ligament (47.8% of cases). Conclusion Surgical correction of duplicated thumb yields good results, as long as attention is paid to abnormalities in bones, ligaments, and tendons. Level of Evidence IV; Case series.

RESUMO Objetivo Avaliar os fatores epidemiológicos e funcionais pós operatórios dos pacientes operados por duplicação de polegar. Métodos Essa é uma série retrospectiva de casos em que foram avaliados 20 pacientes (23 polegares), operados entre janeiro de 2012 e dezembro de 2016, no Hospital Menino Jesus/ SP. Foram estudados fatores epidemiológicos e clínicos, dentre os quais o score funcional de Tada. Resultados Das 34 crianças operadas, apenas 20 compareceram para avaliação funcional. Dos casos operados, 60% eram Wassel tipo 4. Todos os casos avaliados obtiveram resultado funcional bom (Tada maior ou igual a 5), com score médio de 6,65. A técnica cirúrgica mais utilizada foi a ressecção do polegar radial com reconstrução do ligamento colateral radial, presente em 47,8% das vezes. Conclusão A correção cirúrgica da duplicação de polegar cursa com bons resultados, desde que se atente para as anormalidades osteoligamentares e tendíneas. Nível de Evidência IV; Série de casos.

RESUMO

PURPOSE: Treating arthrosis in the base of the thumb has been a highly controverted subject. Many surgeries have been described, such as the isolated trapezium resection; resection with interposition with and without ligament plasty; arthrodesis, and arthroplasties. The purpose of this paper is to compare the two techniques which are currently the most used in this treatment. METHODS: A prospective study has been made to compare the surgical results between the trapezium resection with tendon interposition (tenoarthroplasty) - 22 cases - and tenoarthroplasty associated to ligament plasty-24 cases. Objective evaluation was done by measuring opponence, movements of the metacarpophalangeal joint, pinch and grasp strength, radiographic measurement of the distance between the base of first metacarpal and the scaphoid, and measurement of the angle between the first and the second metacarpals. Subjective evaluation was done with a DASH questionnaire, visual analog scale to evaluate pain and patient satisfaction. RESULTS AND CONCLUSION: After application of the criteria described and using Student 't' tests for statistical analysis, the authors concluded that the ligament reconstruction has no advantage over the simple resection and tendon interposition in carpometacarpal arthrosis of the thumb.