Gonzalo Altube - Academia.edu (original) (raw)
Papers by Gonzalo Altube
International Orthopaedics, 2013
The Journal of Hand Surgery, 2021
Background: Volar locking plates have provided the capability to repair both simple and complex f... more Background: Volar locking plates have provided the capability to repair both simple and complex fractures. However, complications related to the inability to fix or to maintain the fixation of some fracture patterns have been reported with volar locking plates. The purpose of this study was to evaluate the results of dorsal plating treatment for specific pattern of fractures. Methods: Patients with distal radius fractures were retrospectively evaluated. Inclusion criteria for this study were those related to the patient and treatment (adult patients, internal fixation with dorsal plating, a minimum follow-up of 12 months), and those related to the fracture pattern (displaced central articular fragment, volar distal fracture line not enough to allow volar fixation, displaced dorsal-ulnar fragment, dorsal partial fractures, combination of these patterns). Clinical outcome information including active range of motion, radiographs, PRWE and DASH questionnaires were collected. Complications were recorded. Results: During a 6-year period, 679 distal radius fractures were treated with open reduction and internal fixation. Of these, 27 patients fulfilled the inclusion criteria. Patients were examined at a median of 34 months’ follow-up. All but pronation, supination, and radial deviation had a statistically significant difference compared to the opposite side. The median score on the DASH was 4.5 and 3.2 on the PRWE. No patient suffered loss of reduction during the follow-up nor were tendon ruptures recorded. Conclusions: Although most of the distal radius fractures can be treated with volar locking plates, almost 5% of them present specific patterns that are amenable to treatment with dorsal fixation, without postoperative loss of reduction. These specific patterns are: (1) displaced central articular fragment, (2) volar distal fracture with less of 1cm distance from the distal volar edge of the radius, (3) displaced dorso-ulnar fragment, (4) Barton’s fracture, (5) combination of these patterns.
Introducción: La distancia TT-TG representa la medición radiográfica del vector del cuádriceps. S... more Introducción: La distancia TT-TG representa la medición radiográfica del vector del cuádriceps. Se utiliza en pacientes con patología patelofemoral y se obtiene generalmente con tomografía computada (TAC). Objetivos: 1) Correlacionar las mediciones de la distancia TT-TG realizadas con tomografía computada (TAC) y Resonancia Magnética (RMN). 2) Analizar la variabilidad inter e intraobservador en un grupo de pacientes adolescentes evaluados con RMN. Métodos: 15 pacientes (edad media, 16,7 años) con diagnóstico de inestabilidad patelofemoral fueron evaluados con TAC y RMN. Usando el software PACS se midió la distancia TT-TG con ambos métodos y correlacionamos los resultados. Se calculó el coeficiente de correlación de Pearson. En un segundo grupo de 50 pacientes (edad media, 16 años), tres observadores evaluaron de manera independiente, una serie de 50 Resonancias Magnéticas. Se utilizó un modelo ANOVA de efectos mixtos para calcular los coeficientes de correlación. Este procedimiento se aplicó a los tres observadores (variabilidad inter-observador) y a la pruebareprueba (variabilidad intra-observador). Un valor p <0.05 a dos colas se consideró estadísticamente significativo. Resultados: Existe una excelente correlación de la distancia TT-TG medida por TAC y RMN (0,984, p <0,001), y una excelente reproducibilidad inter e intraobservador en las mediciones por RMN (0.94 p<0.001, CI 95%: 0.91-0.97 y 0.96 p<0.001, CI 95%: 0.93-0.98 respectivamente). Conclusiones: La medición de la distancia TT-TG por RMN es un método fiable y reproducible para la evaluación de alineación distal del aparato extensor en adolescentes.
International Orthopaedics, 2014
The objective of this study was to evaluate the results achieved after revision with plates of hu... more The objective of this study was to evaluate the results achieved after revision with plates of humeral nonunions secondary to failed intramedullary nailing. We retrospectively evaluated 32 patients with humeral nonunions secondary to failed intramedullary nailing, treated by internal fixation with plates between 1998 and 2012. Nonunions were diaphyseal in 19 cases, they were located in the proximal humeral metaphysis in nine cases, and in the distal humeral metaphysis in four cases. There were 11 atrophic nonunions and 21 oligotrophic nonunions. Initial treatment was performed with static locked nails in 12 cases, nails with expansive locking systems in 11 cases, and using thin elastic nails in nine cases. The nails were placed antegrade in 18 cases and retrograde in 14 cases. Time between initial surgery and revision surgery averaged 14.5 months. In seven diaphyseal nonunions, the intramedullary nail was left in-situ. Bone graft was added in 25 cases. Follow-up averaged 35 months. Union was achieved in all cases, after an average of 3.8 months. Disabilities of the Arm, Shoulder and Hand (DASH) score at last follow-up averaged 14 points, and Constant's score averaged 82 points. The analogue scale of pain averaged 0.8 points. Out of seven patients with radial nerve compromise, six recovered completely and one needed tendon transfers. Revision with plates after failed intramedullary humeral nailing achieved union and good predictable objective and subjective results in all cases. Adequate implant selection and meticulous surgical technique are necessary to achieve successful osteosynthesis and bony union.
International Orthopaedics, 2013
The Journal of Hand Surgery, 2021
Background: Volar locking plates have provided the capability to repair both simple and complex f... more Background: Volar locking plates have provided the capability to repair both simple and complex fractures. However, complications related to the inability to fix or to maintain the fixation of some fracture patterns have been reported with volar locking plates. The purpose of this study was to evaluate the results of dorsal plating treatment for specific pattern of fractures. Methods: Patients with distal radius fractures were retrospectively evaluated. Inclusion criteria for this study were those related to the patient and treatment (adult patients, internal fixation with dorsal plating, a minimum follow-up of 12 months), and those related to the fracture pattern (displaced central articular fragment, volar distal fracture line not enough to allow volar fixation, displaced dorsal-ulnar fragment, dorsal partial fractures, combination of these patterns). Clinical outcome information including active range of motion, radiographs, PRWE and DASH questionnaires were collected. Complications were recorded. Results: During a 6-year period, 679 distal radius fractures were treated with open reduction and internal fixation. Of these, 27 patients fulfilled the inclusion criteria. Patients were examined at a median of 34 months’ follow-up. All but pronation, supination, and radial deviation had a statistically significant difference compared to the opposite side. The median score on the DASH was 4.5 and 3.2 on the PRWE. No patient suffered loss of reduction during the follow-up nor were tendon ruptures recorded. Conclusions: Although most of the distal radius fractures can be treated with volar locking plates, almost 5% of them present specific patterns that are amenable to treatment with dorsal fixation, without postoperative loss of reduction. These specific patterns are: (1) displaced central articular fragment, (2) volar distal fracture with less of 1cm distance from the distal volar edge of the radius, (3) displaced dorso-ulnar fragment, (4) Barton’s fracture, (5) combination of these patterns.
Introducción: La distancia TT-TG representa la medición radiográfica del vector del cuádriceps. S... more Introducción: La distancia TT-TG representa la medición radiográfica del vector del cuádriceps. Se utiliza en pacientes con patología patelofemoral y se obtiene generalmente con tomografía computada (TAC). Objetivos: 1) Correlacionar las mediciones de la distancia TT-TG realizadas con tomografía computada (TAC) y Resonancia Magnética (RMN). 2) Analizar la variabilidad inter e intraobservador en un grupo de pacientes adolescentes evaluados con RMN. Métodos: 15 pacientes (edad media, 16,7 años) con diagnóstico de inestabilidad patelofemoral fueron evaluados con TAC y RMN. Usando el software PACS se midió la distancia TT-TG con ambos métodos y correlacionamos los resultados. Se calculó el coeficiente de correlación de Pearson. En un segundo grupo de 50 pacientes (edad media, 16 años), tres observadores evaluaron de manera independiente, una serie de 50 Resonancias Magnéticas. Se utilizó un modelo ANOVA de efectos mixtos para calcular los coeficientes de correlación. Este procedimiento se aplicó a los tres observadores (variabilidad inter-observador) y a la pruebareprueba (variabilidad intra-observador). Un valor p <0.05 a dos colas se consideró estadísticamente significativo. Resultados: Existe una excelente correlación de la distancia TT-TG medida por TAC y RMN (0,984, p <0,001), y una excelente reproducibilidad inter e intraobservador en las mediciones por RMN (0.94 p<0.001, CI 95%: 0.91-0.97 y 0.96 p<0.001, CI 95%: 0.93-0.98 respectivamente). Conclusiones: La medición de la distancia TT-TG por RMN es un método fiable y reproducible para la evaluación de alineación distal del aparato extensor en adolescentes.
International Orthopaedics, 2014
The objective of this study was to evaluate the results achieved after revision with plates of hu... more The objective of this study was to evaluate the results achieved after revision with plates of humeral nonunions secondary to failed intramedullary nailing. We retrospectively evaluated 32 patients with humeral nonunions secondary to failed intramedullary nailing, treated by internal fixation with plates between 1998 and 2012. Nonunions were diaphyseal in 19 cases, they were located in the proximal humeral metaphysis in nine cases, and in the distal humeral metaphysis in four cases. There were 11 atrophic nonunions and 21 oligotrophic nonunions. Initial treatment was performed with static locked nails in 12 cases, nails with expansive locking systems in 11 cases, and using thin elastic nails in nine cases. The nails were placed antegrade in 18 cases and retrograde in 14 cases. Time between initial surgery and revision surgery averaged 14.5 months. In seven diaphyseal nonunions, the intramedullary nail was left in-situ. Bone graft was added in 25 cases. Follow-up averaged 35 months. Union was achieved in all cases, after an average of 3.8 months. Disabilities of the Arm, Shoulder and Hand (DASH) score at last follow-up averaged 14 points, and Constant's score averaged 82 points. The analogue scale of pain averaged 0.8 points. Out of seven patients with radial nerve compromise, six recovered completely and one needed tendon transfers. Revision with plates after failed intramedullary humeral nailing achieved union and good predictable objective and subjective results in all cases. Adequate implant selection and meticulous surgical technique are necessary to achieve successful osteosynthesis and bony union.