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      Caso clínico: tratamiento quirúrgico de la neuropatía cubital por pseudoartrosis del gancho del hueso ganchoso Translated title: Caso clínico: tratamento cirúrgico da neuropatia ulnar no canal de guyon, devido à não-união do gancho do hamato Translated title: Clinical case: surgical treatment for ulnar neuropathy due to pseudoarthrosis of the hook of the hamate

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          Abstract

          Resumen Objetivo: Presentar el caso de un varón, jugador de tenis, con dolor en la muñeca asociado a neuropatía cubital en el canal de Guyon, sin historia de traumatismo conocido. Método: La valoración incluyó datos clínicos, de imagen y de función nerviosa. El estudio neurofisiológico confirmó la neuropatía cubital, pero ni la radiología convencional ni la ecografía proporcionaron un diagnóstico etiológico, para lo que precisamos tomografía axial computarizada. El paciente fue intervenido mediante abordaje volar, apertura del canal de Guyon y osteosíntesis con dos tornillos de 1.5 mm de diámetro. Resultados: La recuperación clínica y la consolidación de la pseudoartrosis se alcanzaron a los cuatro meses del procedimiento. Conclusiones: El dolor en el margen cubital de la mano, con tenosinovitis flexora de los tendones del cuarto y quinto dedos y/o manifestaciones de neuropatía cubital distal, cuando se produce en pacientes que practican deporte de empuñadura, obliga a realizar tomografía axial computerizada, y, si hay pseudoartrosis del gancho del hueso ganchoso, intentar su osteosíntesis.

          Translated abstract

          Resumo Objetivo: Apresentamos o caso de um jogador de ténis masculino, com dor no punho associada a neuropatia ulnar no canal do Guyon, sem histórico de trauma conhecido. Método: A avaliação incluiu dados clínicos, de imagem e função nervosa. O estudo neurofisiológico confirmou neuropatia ulnar mas nem a radiologia convencional ou ultrassonografia, proporcionaram um diagnóstico etiológico, obtido apenas com o uso de tomografia computadorizada. O paciente foi operado por abordagem volar, abertura do canal Guyon e osteossíntese com dois rafusos de 1.5 mm diâmetro. Resultados: Recuperação clínica e consolidação da pseudoartrose foi alcançada em quatros após o procedimento. Conclusões: A dor na margem ulnar da mão associada com tenossinovite dos flexores dos tendões dos quarto e quinto dedos e/ou manifestações de neuropatia ulnar distal, quando ocorre em pacientes que praticam esportes de empulhadura, é uma indicação para realizar tomografia computadorizada e se houver pseudoartrose, tentar a sua osteossíntese.

          Translated abstract

          Abstract Objective: To present the case of a male tennis player, with wrist pain and ulnar neuropathy in the Guyon's canal, without known trauma history. Method: The assessment included clinical data, imaging and nerve function study. The neurophysiological study confirmed ulnar neuropathy, but neither conventional radiology nor ultrasound provided an etiologic diagnosis, achieved only with the use of computed tomography scan. The patient was operated via volar approach, Guyon's canal opening and osteosynthesis with two 1.5 mm diameter screws. Results: The clinical recovery and the consolidation of the pseudoarthrosis occurred at four months after the procedure. Conclusions: Pain in the ulnar border of the hand in association with flexor tenosynovitis of the fourth and fifth fingers and/or signs of distal ulnar neuropathy, in patients practicing sports that involves hand grip, forces to perform computed tomography scan, and if it shows a pseudoarthrosis of the hook of the hamate, osteosynthesis should be tried.

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          Most cited references20

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          Fracture of the hook of the hamate in athletes.

          During an eight-year period, four tennis players, seven golfers, and nine baseball players were seen with a fracture of the hook of the hamate. Eighteen of these twenty patients were disabled by pain and after the fracture fragment was removed, all eighteen were relieved so that they returned to their athletic pursuits. Two patients were asymptomatic, their old fracture being discovered accidentally when they were treated for other injuries. Nineteen of the twenty patients had been examined before coming under our care, but the correct diagnosis had been made in only two. Conservative treatment, including rest, physical therapy, and injections of steroids into the wrist and hand, had not been beneficial. From the history and findings, we believe that these fractures were caused by a direct blow against the hook of the hamate caused by the handle of the tennis racket, golf club, or bat during a swing, and not by indirect force produced by the ligaments and muscles attached to the hook. The fracture was demonstrated in all twenty patients by a roentgenogram (profile view) of the carpal tunnel.
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            Stress fracture of the hook of the hamate.

            Fractures of the hook of the hamate have rarely been reported. They have usually resulted from blunt trauma or a sharp strike against the hamate hook while swinging a golf club, baseball bat, or tennis racquet. Patients present with acute onset of pain localised over the ulnar aspect of the wrist and reduction in grip strength. In the case reported here, the patient complained of gradual onset of pain on the ulnar aspect of the wrist after altering his grip for serving in tennis. Once the diagnosis was made, the fracture was treated conservatively and the patient made a complete recovery.
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              Classification and treatment of hamate fractures.

              Twenty-nine patients with hamate fractures were treated. The two main types of hamate fractures are hook fractures (type 1) and body fractures (type 2). We sub-divided type 2 fractures according to the fracture line into coronal, type 2a and transverse, type 2b. There were 15 type 1, 11 type 2a and three type 2b fractures. For type 1, nine were treated with excision, one with open reduction and internal fixation (ORIF) and five with cast immobilisation, in which two resulted in non-union followed by excision. For type 2, five type 2a cases were treated with ORIF and the others with closed reduction and pinning. Most of the patients had satisfactory results at the seventh month follow-up. However, those with associated neurovascular and musculotendinous injuries were likely to have unfavourable results. On the basis of study findings, it appears that functional results are influenced mainly by the associated soft tissue damage.
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                Author and article information

                Journal
                ramd
                Revista Andaluza de Medicina del Deporte
                Rev Andal Med Deporte
                Centro Andaluz de Medicina del Deporte (Sevilla, Sevilla, Spain )
                1888-7546
                2172-5063
                2017
                : 10
                : 1
                : 42-45
                Affiliations
                [1] Marbella Málaga orgnameInstituto de Traumatología Deportiva de la Costa del Sol España
                Article
                S1888-75462017000100042 S1888-7546(17)01000100042
                10.1016/j.ramd.2016.11.016
                3a3390f8-a2ae-4340-aee8-edebfe7208f9

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 14 November 2016
                : 06 August 2016
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 20, Pages: 4
                Product

                SciELO Spain

                Categories
                Caso Clínico

                Hamato,Uncinate process,Apófisis unciforme,Hamate,Processo uncinado,Hueso ganchoso,Neuropatia ulnar,Ulnar neuropathy,Neuropatía cubital

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