[Translated article] Experience in major complications with total trapezometacarpal prostheses.

INTRODUCTION: The treatment of rhizarthrosis using trapeziometacarpal prostheses (TMP) is increasing. Complications may lead to loss of the implant and result in salvage surgery. Our aim was to assess major complications with the use of some TMP models and their rescue. MATERIAL AND METHOD: Retrospective study on TMP implanted between 2006 and 2021. Models studied: Arpe®, Elektra®, Ivory®, Maïa®, Isis® and Touch®. Demographic data were assessed, implant placement by radiographic study, technical data, complications, salvage surgeries and final survival. RESULTS: Review of 224 TMP, 45 Arpe® (95.5% survival, rate follow-up [R] 6-16 years), 5 Elektra® (80% survival, R 13-14), 14 Ivory® (92.8% survival, R 9-11), 7 Maïa® (100% survival, R 8-9), 115 Isis® (99.1% survival, R 1-8), 38 Touch® (100% survival, R 1-4). The medial angle of the dome with the proximal articular surface of the trapezium in the lateral plane, was: Arpe®: 8.85°, Elektra®: not assessable, Ivory®: 6.6°, Maïa®: 14.4°, Isis®: 3.8°, and Touch®: 5.95°. The Isis® was placed 100% with scopic guidance presenting a significantly lower angle respect to the medial angle of the dome with the proximal articular surface of the trapezium. As main complications, we observed 3.5% of dislocations and 4% of mobilisations, with the Elektra® being responsible for 47% of these. Nineteen salvage surgeries were performed, with 3% of the implants being lost. CONCLUSIONS: Dislocation and mobilisation are the most observed complications, the Elektra® responsible for almost half of them. Correct placement and implant design appear to be crucial to avoid them in the short and long term.

Experience in major complications with total trapezometacarpal prostheses. / Experiencia en complicaciones mayores con las prótesis totales trapeciometacarpianas.

INTRODUCTION: The treatment of rhizarthrosis using trapeziometacarpal prostheses (TMP) is increasing. Complications may lead to loss of the implant and result in salvage surgery. Our aim was to assess major complications with the use of some TMP models and their rescue. MATERIAL AND METHOD: Retrospective study on TMP implanted between 2006 and 2021. Models studied: Arpe®, Elektra®, Ivory®, Maïa®, Isis® and Touch®. Demographic data were assessed, implant placement by radiographic study, technical data, complications, salvage surgeries and final survival. RESULTS: Review of 224 TMP, 45 Arpe® (95.5% survival, rate follow-up [R] 6-16 years), 5 Elektra® (80% survival, R 13-14), 14 Ivory® (92.8% survival, R 9-11), 7 Maïa® (100% survival, R 8-9), 115 Isis® (99.1% survival, R 1-8), 38 Touch® (100% survival, R 1-4). The medial angle of the dome with the proximal articular surface of the trapezium in the lateral plane, was: Arpe®: 8.85°, Elektra®: not assessable, Ivory®: 6.6°, Maïa®: 14.4°, Isis®: 3.8°, and Touch®: 5.95°. The Isis® was placed 100% with scopic guidance presenting a significantly lower angle respect to the medial angle of the dome with the proximal articular surface of the trapezium. As main complications, we observed 3.5% of dislocations and 4% of mobilisations, with the Elektra® being responsible for 47% of these. Nineteen salvage surgeries were performed, with 3% of the implants being lost. CONCLUSIONS: Dislocation and mobilisation are the most observed complications, the Elektra® responsible for almost half of them. Correct placement and implant design appear to be crucial to avoid them in the short and long term.

Initial survival of the Isis® total trapeziometacarpal prosthesis with conical trunk threaded cups. / Supervivencia inicial de la prótesis total trapeciometacarpiana de cúpula roscada Isis®.

INTRODUCTION: The treatment of trapeziometacarpal osteoarthritis through the implantation of total trapeziometacarpal prostheses is in continuous expansion. The Isis® prosthesis is a trunk-conical threaded anchorage prosthesis. Our objective was to assess the functional results and survival of this implant for at least one year of follow-up. MATERIAL AND METHOD: Prospective study on 53 Isis® prosthesis, implanted from april 2014 to january 2019. The Van Cappelle functional test, pain, strength, mobility, return to previous activity, radiological variables and placement of the trapezial component were evaluated. The surgical technique was performed with a guide wirefocused on the trapezius and control of the scopia. Observed complications were recorded and statistical analysis was performed. RESULTS: Fifty-one implants (49 patients) were reviewed. Mean follow-up was 2.1 years (1-5.7). Van Cappelle's test, pain, mobility, and grip and clamp strength improved significantly, as did the distance between the metacarpal head and the trapezius base; 96% of the patients returned in less than 6 months to their activities. Minor complications, 3 De Quervain's tendinopathy and 2 intra-operative metacarpal and 2 trapezium fractures were recorded, and one carpal tunnel syndrome. There was no dislocation, mobilization, or implant infection. CONCLUSIONS: The functional results of the Isis® prosthesis are excellent in the short term, far exceeding the first year of 100% of survival. The complications that arose were minor and few. The anchorage and placement of the trapezial component guided by scopia seem to be crucial for the good result.

Distal radius fractures: Should we use supplemental bone grafts or substitutites in cases of severe osteoporotic or conminution?

OBJECTIVES: The purpose of this study was to assess the need of bone graft or bone substitutes in unstable distal radius fractures (DRF) treated with locking compression plates (LCP) PATIENTS AND METHODS: An observational and prospective study was conducted on 60 patients with DRF AO-type A3 and AO-type C3, treated surgically by LCP plates without bone grafts or substitutes. Ranges of motion in flexion (F), extension (E), pronation (P), and supination (S) were measured in the injured wrist and compared with the healthy contralateral wrist. X-ray parameters: palmar tilt (PT), radial inclination (RI), ulnar variance (UV), and radial height (RH) were calculated in the injured wrist one year after surgery and then compared, with those parameters in the healthy contralateral wrist and in the follow-up postoperative x-ray of the injured wrist. PRWE and DASH scores were used to evaluate patient satisfaction. RESULTS: The range of motion loss was F 12° ± 16.1°, E 9° ± 13.1°, P 2.5° ± 7.5°, and S 5°±10°, but they remained within functional parameters. Good results were also obtained in the PRWE and DASH scores (DASH 12.6 ± 14.16 and PRWE 9.5 ± 9.5). All the fractures were healed without significant collapse (IP 0.55 ± 1.7°, IR 0.31 ± 1.5°, VC 0.25±0.8mm, and AR 0.1 ± 0.9 mm). CONCLUSIONS: All fractures healed without problems or with significant loss of reduction. Bone graft and bone substitutes are not mandatory for treatment of unstable DRF with LCP plates. Their use increases the cost and is not exempt of morbidities. This study also reinforces the role of LCP plates in surgical treatment of unstable DRF.

Fracturas de radio distal: ¿es necesario el aporte de injerto o sustitutivo óseo en los casos con osteoporosis o conminución severa? / Distal radius fractures: Should we use supplemental bone grafts or substitutites in cases of severe osteoporotic or conminution?

Objetivo: Evaluar la necesidad de injertos o sustitutivos óseos en el tratamiento quirúrgico de las fracturas de radio distal (FDR) con placas bloqueadas (LCP). Material y métodos: Estudio prospectivo observacional de 60 pacientes con FDR A3 o C3 tratadas mediante placa LCP sin aporte de injerto o sustitutivo óseo. Se comparó la movilidad en flexión (F), extensión (E), supinación (S) y pronación (P) de la muñeca fracturada con respecto a la sana; y los parámetros radiográficos de inclinación palmar (IP), inclinación radial (IR), varianza cubital (VC) y altura radial (AR) de la muñeca fracturada al año de la cirugía respecto a la muñeca contralateral sana y a la fracturada en el postoperatorio. Evaluamos el grado de satisfacción del paciente mediante las escalas PRWE y DASH. Resultados: Las diferencias de movilidad de la muñeca fracturada con respecto a la muñeca contralateral sana fueron F 12° ± 16,1°, E 9° ± 13,1°, P 2,5° ± 7,5° y S 5° ± 10°, pero se mantuvieron dentro de rangos funcionales y obtuvimos un buen nivel de satisfacción de los pacientes (DASH 12,6 ± 14,16 y PRWE 6,31 ± 9,5). El 100% de FDR consolidaron sin colapso significativo (IP 0,55 ± 1,7°, IR 0,31 ± 1,5°, VC 0,25 ± 0,8 mm, AR 0,1 ± 0,9 mm). Conclusiones: Todas las fracturas consolidaron sin problemas y la pérdida de reducción no fue estadísticamente significativa. El uso de injertos o sustitutivos óseos no es imprescindible en el tratamiento de las FDR inestables con placas LCP, cuya utilización encarece el procedimiento y no está exenta de morbilidades. Como conclusión secundaria, el estudio afianza el papel de las placas LCP en el tratamiento de las FDR (AU)

Objectives: The purpose of this study was to assess the need of bone graft or bone substitutes in unstable distal radius fractures (DRF) treated with locking compression plates (LCP) Patients and Methods: An observational and prospective study was conducted on 60 patients with DRF AO-type A3 and AO-type C3, treated surgically by LCP plates without bone grafts or substitutes. Ranges of motion in flexion (F), extension (E), pronation (P), and supination (S) were measured in the injured wrist and compared with the healthy contralateral wrist. X-ray parameters: palmar tilt (PT), radial inclination (RI), ulnar variance (UV), and radial height (RH) were calculated in the injured wrist one year after surgery and then compared, with those parameters in the healthy contralateral wrist and in the follow-up postoperative x-ray of the injured wrist. PRWE and DASH scores were used to evaluate patient satisfaction. Results: The range of motion loss was F 12° ± 16.1°, E 9° ± 13.1°, P 2.5° ± 7.5°, and S 5°±10°, but they remained within functional parameters. Good results were also obtained in the PRWE and DASH scores (DASH 12.6 ± 14.16 and PRWE 9.5 ± 9.5). All the fractures were healed without significant collapse (IP 0.55 ± 1.7°, IR 0.31 ± 1.5°, VC 0.25 ± 0.8 mm, and AR 0.1 ± 0.9 mm). Conclusions: All fractures healed without problems or with significant loss of reduction. Bone graft and bone substitutes are not mandatory for treatment of unstable DRF with LCP plates. Their use increases the cost and is not exempt of morbidities. This study also reinforces the role of LCP plates in surgical treatment of unstable DRF (AU)

Pseudoaneurisma Postraumático de Arteria Radial / Postraumatic pseudoaneurysm of the Radial Artery

Los aneurismas se clasifican en verdaderos o falsos (pseudoaneurismas) dependiendo del daño de la pared arterial. La mayoría de los aneurismas distales de la extremidad superior surgen de la arteria cubital. Las lesiones con origen en la arteria radial son poco comunes y casi siempre se deben a traumatismos penetrantes o lesiones iatrogénicas. La mayor parte se localizan a nivel distal, en la caravolar del antebrazo. La clínica de un pseudoaneurisma de arteria radial puede manifestarse horas después de la lesión o insidiosamente a los meses o años siendo a menudo mal diagnosticado. El diagnóstico y tratamiento se realiza por medios no invasivos en el momento actual, aunque de fallar estas opciones se puede recurrir a métodos invasivos, tanto en el diagnóstico (arteriografía) como en el tratamiento (cirugía), permitiendo lograr un resultado satisfactorio en ausencia de complicaciones isquémicas. Presentamos el caso de un varón de 25 años de edad que sufrió una herida penetrante en primera comisura de manoizquierda y que fue enviado 1 O días después de la lesión inicial, con una masa pulsátil a dicho nivel. Una vez realizado el diagnóstico, se intento la trombosis del mismo y tras fracasar esta opción se opto por la resección.Ocho meses después se encuentra sin recidiva (AU)

Aneurysms are classified as "true" or "false" (pseudoaneurysrns), depending upon the extent of arterial wall damage. Most distal upper extremity aneurysms arise from the ulnarartery. Rare lesions originating from the radial artery are almost always related either to penetrating trauma or to iatrogenic injury. Most of them are located on the volar aspect of the distal foreann. The clinical picture of a radial artery aneurysm may appear within hours following injury or insidiously over a period of months to years and frequently is misdiagnosed. Actually the diagnosis and treatment can be made by non­invasive methods, but in case of failure of these options, the invasive methods, as in diagnostic (arteriography) or in treatment (surgery), can be feasibles too, obtaining a satisfactory result in absent of ischemic complications. We report the case of a man 25 years old who presented a penetrating injury on the first web of the left hand and was sent 10 days after the original injury with a pulsatil mass at this level. After the diagnosis we tried to embolizate it without suc­ cess and then we had to remove it. Patient is in absent of recidiva eight rnonths later (AU)