Fracturas intraarticulares de calcáneo. ¿Las placas bloqueadas mantienen la reducción mejor que las convencionales? / Intra-articular calcaneal fractures. Do locking plates keep the reduction better than conventional plates?

Introducción: Desde el desarrollo de las placas bloqueadas, las fracturas de calcáneo han sido consideradas como ideales para este tipo de fijación, debido a la necesidad de mantener la altura de la articulación subastragalina tras las fracturas con hundimiento, en una localización donde la calidad ósea suele ser pobre. Sin embargo, no contamos con estudios comparativos que apoyen la superioridad teórica de estas placas frente a las convencionales. El objetivo de este estudio es comparar los resultados de las fracturas intraarticulares de calcáneo tratadas mediante placas bloqueadas versus convencionales, en cuanto a pérdida de reducción radiológica, complicaciones y número de reintervenciones. Material y métodos: Diseñamos un estudio comparativo de fracturas de calcáneo intervenidas en nuestro centro mediante abordaje en «L». Se establecieron 2 grupos: grupo B, formado por 15 pacientes intervenidos entre los años 2010 y 2015 con placas bloqueadas de calcáneo, y grupo A, formado por una muestra aleatoria estratificada de 23 pacientes extraídos de una cohorte histórica de 90 pacientes intervenidos en nuestro centro entre 1997 y 2007 con placas convencionales de calcáneo. Se registraron datos demográficos (edad, sexo, diabetes mellitus, tabaquismo) y datos relacionados con la fractura (tipo de fractura según la clasificación de Sanders, complicaciones, demora prequirúrgica). Para evaluar la pérdida de reducción se evaluaron radiográficamente la angulación en varo del calcáneo (medida en la proyección axial), el ángulo de Böhler y el ángulo de Gissane. Dichos ángulos se midieron preoperatoriamente, en el postoperatorio inmediato y al final del seguimiento. Finalmente, se registraron las complicaciones y el número de reintervenciones. Resultados: No hubo diferencias en cuanto a la edad, el sexo y el tipo de fractura entre ambos grupos. Hubo mayor pérdida de la angulación en varo en el grupo A, 0,6 vs. 0,41°, también hubo mayor disminución del ángulo de Böhler en el grupo A, 3,79 vs. 2,6°, mientras que el ángulo de Gissane disminuyó más en el grupo B, 4,13 vs. 2,52°. No hubo diferencias significativas en la proporción de complicaciones y reintervenciones entre ambos grupos. Conclusión: En nuestro estudio no se observan diferencias significativas entre ambos grupos en cuanto a la pérdida de reducción radiológica, las complicaciones y el número de reintervenciones. Sin embargo, observamos una mayor pérdida de reducción en el ángulo de Böhler en los pacientes intervenidos con placas convencionales

Introduction: Since the development of locking plates, calcaneal fractures have been considered ideal for this type of fixation, due to the need to maintain the height of the subastragaline joint after depression fractures in a location where bone quality tends to be poor. However, there are no comparative studies that support the theoretical superiority of these plates over conventional plates. The aim of this study was to compare the results of intraarticular calcaneal fractures treated using locking plates vs. conventional plates in terms of radiological reduction, complications and number of reinterventions. Material and methods: We designed a comparative study of calcaneal fractures operated in our centre using the "L" approach. Two groups were established: group B, comprising 15 patients operated between 2010 and 2015 with calcaneal locking plates, and group A, comprising a stratified random sample of 23 patients taken from a historical cohort of 90 patients operated in our centre between 1997 and 2007 using conventional calcaneal plates. Demographic data were recorded (age, sex, diabetes mellitus, smoking) and data relating to the fracture (type of fracture according to Sander's classification system, complications, presurgical delay). To evaluate loss of reduction, varus angulation of the calcaneus (measured from the axial view), Böhler's angle and Gissane's angle were assessed radiographically. These angles were measured preoperatively, immediately postoperatively, and at the end of follow-up. Finally, we recorded complications and the number of reinterventions. Results: There were no differences in terms of age, sex or fracture type between the 2 groups. There was greater loss of varus angulation in group A, 0.6 vs. 0.41°, and there was greater reduction in Böhler's angle in group A, 3.79 vs. 2.6°, while Gissane's angle decreased more in group B, 4.13 vs. 2.52°. There were no significant differences in the proportion of complications and reinterventions between the 2 groups. Conclusion: In our study we observed no significant differences between the 2 groups in terms of radiological reduction, complications or number of reinterventions. However, we did observe a greater loss of reduction of Böhler's angle in the patients who were operated using conventional plates

Intra-articular calcaneal fractures. Do locking plates keep the reduction better than conventional plates? / Fracturas intraarticulares de calcáneo. ¿Las placas bloqueadas mantienen la reducción mejor que las convencionales?

INTRODUCTION: Since the development of locking plates, calcaneal fractures have been considered ideal for this type of fixation, due to the need to maintain the height of the subastragaline joint after depression fractures in a location where bone quality tends to be poor. However, there are no comparative studies that support the theoretical superiority of these plates over conventional plates. The aim of this study was to compare the results of intraarticular calcaneal fractures treated using locking plates vs. conventional plates in terms of radiological reduction, complications and number of reinterventions. MATERIAL AND METHODS: We designed a comparative study of calcaneal fractures operated in our centre using the "L" approach. Two groups were established: group B, comprising 15 patients operated between 2010 and 2015 with calcaneal locking plates, and group A, comprising a stratified random sample of 23 patients taken from a historical cohort of 90 patients operated in our centre between 1997 and 2007 using conventional calcaneal plates. Demographic data were recorded (age, sex, diabetes mellitus, smoking) and data relating to the fracture (type of fracture according to Sander's classification system, complications, presurgical delay). To evaluate loss of reduction, varus angulation of the calcaneus (measured from the axial view), Böhler's angle and Gissane's angle were assessed radiographically. These angles were measured preoperatively, immediately postoperatively, and at the end of follow-up. Finally, we recorded complications and the number of reinterventions. RESULTS: There were no differences in terms of age, sex or fracture type between the 2 groups. There was greater loss of varus angulation in group A, 0.6 vs. 0.41°, and there was greater reduction in Böhler's angle in group A, 3.79 vs. 2.6°, while Gissane's angle decreased more in group B, 4.13 vs. 2.52°. There were no significant differences in the proportion of complications and reinterventions between the 2 groups. CONCLUSION: In our study we observed no significant differences between the 2 groups in terms of radiological reduction, complications or number of reinterventions. However, we did observe a greater loss of reduction of Böhler's angle in the patients who were operated using conventional plates.

[Femoral superficial vein thrombosis due to a large iliopsoas bursitis secondary to polyethylene wear debris in total hip arthroplasty]. / Trombosis de la vena femoral superficial por gran bursitis en psoas secundaria a enfermedad de las partículas en artroplastia total de cadera.

A 76 year old male patient with a history of implantation of a total hip arthroplasty Perfecta (Orthomet(®)), who presented with an iliac fossa mass, increased diameter of the thigh, and pain during hip flexion and extension. CT and ultrasound show the presence of a giant cystic mass in left iliac fossa about 7 cm in diameter next to the prosthesis. A pseudo-tumour secondary to wear debris after placement of a total arthroplasty is rare. We present a case of a large iliopsoas bursitis caused by polyethylene particles, which caused compression and thrombosis of the superficial femoral vein.

Trombosis de la vena femoral superficial por gran bursitis en psoas secundaria a enfermedad de las partículas en artroplastia total de cadera / Femoral superficial vein thrombosis due to a large iliopsoas bursitis secondary to polyethylene wear debris in total hip arthroplasty

Paciente varón de 76 años, con antecedente de implantación de prótesis total de cadera tipo Perfecta (Orthomet®), que consulta por masa en fosa ilíaca, con aumento del diámetro del muslo y dolor flexión y extensión de la cadera. Los estudios complementarios de ecografía y tomografía evidencian la presencia de una tumoración quística gigante lobulada en fosa ilíaca izquierda de unos 7cm de diámetro en la proximidad de la prótesis. La formación quística ocasionada por la enfermedad del polietileno tras la colocación de una artroplastia total de cadera es poco frecuente. Presentamos un caso de bursitis del psoas de gran tamaño, secundaria a la liberación de partículas del polietileno, que ocasionó compresión y trombosis de la vena femoral superficial (AU)

A 76 year old male patient with a history of implantation of a total hip arthroplasty Perfecta (Orthomet®), who presented with an iliac fossa mass, increased diameter of the thigh, and pain during hip flexion and extension. CT and ultrasound show the presence of a giant cystic mass in left iliac fossa about 7cm in diameter next to the prosthesis. A pseudo-tumour secondary to wear debris after placement of a total arthroplasty is rare. We present a case of a large iliopsoas bursitis caused by polyethylene particles, which caused compression and thrombosis of the superficial femoral vein (AU)

[Superficial femoral vein thrombosis due to large psoas bursitis secondary to particle disease in total hip arthroplasty]. / Trombosis de vena femoral superficial por bursitis del psoas posterior a artroplastía total de cadera.

Male, 76 year-old patient with a history of total hip arthroplasty who presents with a mass in the iliac fossa with swelling of the thigh and hip pain upon flexion and extension. Complementary ultrasound and computed tomography scan studies show a giant lobulated cystic mass in the left iliac fossa, 7 cm in diameter, near the prosthesis. Cyst formation caused by polyethylene disease after total hip arthroplasty is infrequent. We present a case of large psoas bursitis secondary to the release of polyethylene particles which caused superficial femoral vein compression and thrombosis.

[Thrombosis of the superficial femoral vein due to psoas bursitis secondary to particle disease in total hip arthroplasty]. / Trombosis de la vena femoral superficial por bursitis del psoas secundaria a enfermedad de las partículas en artroplastía total de cadera.

The case of a male 76 year-old patient with a history of total hip replacement surgery is presented herein. The patient had tumors in the iliac fossa with swelling of the thigh and pain upon hip flexion and extension. The complementary ultrasound and computed tomography show a large lobed cystic tumor in the left iliac fossa, 7 cm in diameter, close to the prosthesis. The diagnosis was psoas bursitis secondary to the release of polyethylene particles that caused compression and thrombosis of the superficial femoral vein. Cyst formation caused by polyethylene disease after total hip arthroplasty is infrequent.