Técnica de Latarjet para la inestabilidad anterior de hombro: implicaciones en la inervación del músculo subescapular / Latarjet procedure for shoulder instability: Implications in the innervation of the subscapularis muscle

Introducción: El objetivo de este estudio es analizar la relación existente entre la inervación del músculo subescapular y los pasos quirúrgicos de la técnica de Latarjet. Material y método: Se realizó un estudio anatómico mediante disección de 12 hombros fijados en formol, y se analizó el patrón de inervación del músculo subescapular. Se midió el tamaño del tendón en la interlínea articular, la distancia craneocaudal desde el borde superior al borde inferior del subescapular, en la entrada de los nervios, y la distancia mediolateral, desde los nervios hasta la interlínea articular. Se realizó la técnica de Latarjet y se midieron las distancias horizontales de los nervios subescapulares a la interlínea articular y de los nervios a la división del subescapular. Se describió la zona de seguridad por la que transcurre la división del subescapular sin dañar los nervios. Resultados: El músculo subescapular está inervado por 3 ramas del nervio subescapular: superior, medio e inferior, que siguen una distribución constante. No se encontraron diferencias estadísticamente significativas en las distancias de los nervios medidas antes y después de la técnica de Latarjet. Para evitar lesionar los nervios, es preciso realizar la división del subescapular entre los dos tercios superiores y el tercio inferior a lo largo del músculo. Conclusión: El músculo subescapular presenta una triple inervación constante. No hemos apreciado cambios estadísticamente significativos en la inervación tras la cirugía de Latarjet. Por tanto, la técnica de Latarjet parece respetar esta inervación al realizar la división del subescapular en su zona de seguridad.

Introduction: Our aim was to describe whether Latarjet's technique affects subscapularis muscle innervation. Materials and methods: We studied 12 embalmed shoulders. Subscapularis muscle innervation pattern was registered. Dimensions of the subscapularis at the glenohumeral joint line and the nerves entry point were measured. Horizontal distances from the nerves to the glenohumeral joint line as well as vertical ones to the split were measured before and after Latarjet procedure. A safe zone for the split was designed to avoid damage to subscapularis innervation. Results: Subscapularis muscle is innervated by three principal branches: upper, middle, and inferior subscapularis nerves. No statistical differences were found between innervation distances before and after Latarjet procedure. To perform subscapularis split along the muscle safe zone, two thirds’ proportions throughout all the split must be maintained. Conclusions: Subscapularis muscle has a triple innervation and was not altered after Latarjet procedure. Therefore, Latarjet technique seems to respect subscapularis muscle innervation if its split is placed through the subscapularis muscle safe zone.(AU)

[Translated article] Latarjet procedure for shoulder instability: Implications in the innervation of the subscapularis muscle / Técnica de Latarjet para la inestabilidad anterior de hombro: implicaciones en la inervación del músculo subescapular

Introducción: El objetivo de este estudio es analizar la relación existente entre la inervación del músculo subescapular y los pasos quirúrgicos de la técnica de Latarjet. Material y método: Se realizó un estudio anatómico mediante disección de 12 hombros fijados en formol, y se analizó el patrón de inervación del músculo subescapular. Se midió el tamaño del tendón en la interlínea articular, la distancia craneocaudal desde el borde superior al borde inferior del subescapular, en la entrada de los nervios, y la distancia mediolateral, desde los nervios hasta la interlínea articular. Se realizó la técnica de Latarjet y se midieron las distancias horizontales de los nervios subescapulares a la interlínea articular y de los nervios a la división del subescapular. Se describió la zona de seguridad por la que transcurre la división del subescapular sin dañar los nervios. Resultados: El músculo subescapular está inervado por 3 ramas del nervio subescapular: superior, medio e inferior, que siguen una distribución constante. No se encontraron diferencias estadísticamente significativas en las distancias de los nervios medidas antes y después de la técnica de Latarjet. Para evitar lesionar los nervios, es preciso realizar la división del subescapular entre los dos tercios superiores y el tercio inferior a lo largo del músculo. Conclusión: El músculo subescapular presenta una triple inervación constante. No hemos apreciado cambios estadísticamente significativos en la inervación tras la cirugía de Latarjet. Por tanto, la técnica de Latarjet parece respetar esta inervación al realizar la división del subescapular en su zona de seguridad.

Introduction: Our aim was to describe whether Latarjet's technique affects subscapularis muscle innervation. Materials and methods: We studied 12 embalmed shoulders. Subscapularis muscle innervation pattern was registered. Dimensions of the subscapularis at the glenohumeral joint line and the nerves entry point were measured. Horizontal distances from the nerves to the glenohumeral joint line as well as vertical ones to the split were measured before and after Latarjet procedure. A safe zone for the split was designed to avoid damage to subscapularis innervation. Results: Subscapularis muscle is innervated by three principal branches: upper, middle, and inferior subscapularis nerves. No statistical differences were found between innervation distances before and after Latarjet procedure. To perform subscapularis split along the muscle safe zone, two thirds’ proportions throughout all the split must be maintained. Conclusions: Subscapularis muscle has a triple innervation and was not altered after Latarjet procedure. Therefore, Latarjet technique seems to respect subscapularis muscle innervation if its split is placed through the subscapularis muscle safe zone.(AU)

[Translated article] Efficacy of platelet-rich plasma in rotator cuff repair: Systematic review and meta-analysis.

OBJECTIVE: To analyse the efficacy and safety after the application of platelet-rich-plasma (PRP) as an adjuvant in arthroscopic rotator cuff repairs. MATERIAL AND METHODS: A bibliographic search of the literature of prospective studies with level of evidence one or two was carried out from January 2004 to December 2021, including studies that compare the functional and re-tear results after arthroscopic cuff repair rotator with or without PRP. RESULTS: A total of 281 articles were identified, of which 14 met the inclusion criteria. The overall re-rupture rate was 24%. In the PRP group, a decrease in the re-rupture rate and better functional results were demonstrated, although these differences were not significant. CONCLUSIONS: Adjuvant treatment with PRP has shown promising results, although there is not yet enough evidence to provide a clear advantage for routine use in clinical practice.

Latarjet procedure for shoulder instability: Implications in the innervation of the subscapularis muscle. / Técnica de Latarjet para la inestabilidad anterior de hombro: implicaciones en la inervación del músculo subescapular.

INTRODUCTION: Our aim was to describe whether Latarjet's technique affects subscapularis muscle innervation. MATERIALS AND METHODS: We studied 12 embalmed shoulders. Subscapularis muscle innervation pattern was registered. Dimensions of the subscapularis at the glenohumeral joint line and the nerves entry point were measured. Horizontal distances from the nerves to the glenohumeral joint line as well as vertical ones to the split were measured before and after Latarjet procedure. A safe zone for the split was designed to avoid damage to subscapularis innervation. RESULTS: Subscapularis muscle is innervated by three principal branches: upper, middle, and inferior subscapularis nerves. No statistical differences were found between innervation distances before and after Latarjet procedure. To perform subscapularis split along the muscle safe zone, two thirds' proportions throughout all the split must be maintained. CONCLUSIONS: Subscapularis muscle has a triple innervation and was not altered after Latarjet procedure. Therefore, Latarjet technique seems to respect subscapularis muscle innervation if its split is placed through the subscapularis muscle safe zone.

[Translated article] Latarjet procedure for shoulder instability: Implications in the innervation of the subscapularis muscle.

INTRODUCTION: Our aim was to describe whether Latarjet's technique affects subscapularis muscle innervation. MATERIALS AND METHODS: We studied 12 embalmed shoulders. Subscapularis muscle innervation pattern was registered. Dimensions of the subscapularis at the glenohumeral joint line and the nerves entry point were measured. Horizontal distances from the nerves to the glenohumeral joint line as well as vertical ones to the split were measured before and after Latarjet procedure. A safe zone for the split was designed to avoid damage to subscapularis innervation. RESULTS: Subscapularis muscle is innervated by three principal branches: upper, middle, and inferior subscapularis nerves. No statistical differences were found between innervation distances before and after Latarjet procedure. To perform subscapularis split along the muscle safe zone, two thirds' proportions throughout all the split must be maintained. CONCLUSIONS: Subscapularis muscle has a triple innervation and was not altered after Latarjet procedure. Therefore, Latarjet technique seems to respect subscapularis muscle innervation if its split is placed through the subscapularis muscle safe zone.

Arthroscopic rotator cuff repair using a single or double row technique: A meta-analysis of randomized clinical trial. / Reparación artroscópica del manguito rotador mediante una técnica de hilera simple o doble hilera: un metaanálisis de los ensayos clínicos aleatorizados.

PURPOSE: To compare the double row technique versus the single row technique for arthroscopic rotator cuff repair, in order to assess whether there are clinical differences. METHODS: Systematic review of randomized clinical trials comparing the clinical results of the double-row technique versus the single-row technique in arthroscopic rotator cuff repair. Demographic, clinical, and surgical variables were analyzed, including functional scores, tendon healing rate, and re-tear rate. RESULTS: Thirteen randomized clinical trials were selected. 437 patients in the single row group (50.7%) and 424 patients in the double row group (49.3%) were analyzed. No significant differences were found between the two groups in terms of age (P=.84), sex (P=.23) and loss to follow-up (P=.52). Significant differences were found for the better results of the double row technique at the UCLA level (P=.01). No significant differences were found on the Constant-Murley scale (P=.87) or on the ASES scale (P=.56). Similarly, there was a higher healing rate (P=.006) and less risk of rotator cuff re-tears with the double row technique (P=.006). CONCLUSIONS: In rotator cuff repair, the double row technique was found to be superior to the single row technique in terms of better UCLA score, better tendon healing rate, and lower re-tear rate. No clinically significant differences were found on the Constant-Murley scale or on the ASES scale.

Interobserver reliability of classifying shoulder calcific tendinopathy on plain radiography and ultrasound.

INTRODUCTION: Shoulder calcific tendinopathy is a frequent cause of shoulder pain. Diagnosis is usually based on ultrasound (US) and/or X-ray. US is considered an inherently operator-dependent imaging modality and, interobserver variability has previously been described by experts in the musculoskeletal US. The main objective of this study is to assess the interobserver agreement for shoulder calcific tendinopathy attending to the size, type, and location of calcium analyzed in plain film and ultrasound among trained musculoskeletal radiologists. MATERIAL AND METHODS: From June 2018 to May 2019, we conducted a prospective study. Patients diagnosed with shoulder pain related to calcific tendinopathy were included. Two different experienced musculoskeletal radiologists evaluated independently the plain film and the US. RESULTS: Forty patients, with a mean age of 54.6 years, were included. Cohen's kappa coefficient of 0.721 and 0.761 was obtained for the type of calcium encountered in plain film and the US, respectively. The location of calcification obtained a coefficient of 0.927 and 0.760 in plain film and US, respectively. The size of the calcification presented an intraclass correlation coefficient (ICC) of 0.891 and 0.86 in plain film and US respectively. No statistically significant differences were found in either measurement. CONCLUSION: This study shows very good interobserver reliability of type and size measurement (plain film and US) of shoulder calcifying tendinopathy in experienced musculoskeletal radiologists.

[Concordance between ultrasound-arthroscopy of the shoulder in rotator cuff injury]. / Concordancia entre ecografía-artroscopía de hombro en lesión del mango rotador.

Background: Rotator cuff injury occurs over tendons that insert into the humeral tuberosity. Ultrasonography detects the size and extent of tendon tears. Its sensitivity and specificity range from 91-100% and 85-86%, respectively. It has been shown that a trained orthopedic surgeon can perform shoulder ultrasonography for the accurate diagnosis of rotator cuff pathology. Objective: To determine the concordance between ultrasound-arthroscopy of the shoulder in rotator cuff injuries at the Unidad Médica Atención Ambulatoria No. 55 (Ambulatory Care Unit No. 55) in León, Guanajuato, Mexico. Material and methods: Experimental study of a sample of 37 patients with a diagnosis of rotator cuff injury, in whom preoperative ultrasound and later shoulder arthroscopy of the same side were performed. The data were subjected to concordance with Cohen's Kappa Index. Results: There were 37 patients in whom we identified an overall concordance of 81%. Cohen's Kappa index was 0.76, considered a good concordance. Out of the 7 patients without correlation, in 1 patient the ultrasound showed partial rupture and by arthroscopy showed complete rupture of the supraspinatus. In 2 patients ultrasonography showed complete rotator cuff tear; during arthroscopy, both showed massive rotator cuff tear. Conclusions: Preoperative shoulder ultrasonography performed by traumatology presents a good concordance in the diagnosis of rotator cuff tears confirmed by arthroscopy.

Introducción: la lesión del mango rotador ocurre sobre tendones que se insertan en la tuberosidad humeral. La ecografía detecta el tamaño y la extensión de los desgarros del tendón. Su sensibilidad y especificidad oscila entre 91-100% y 85-86%, respectivamente. Se ha demostrado que un cirujano ortopédico capacitado puede hacer la ecografía del hombro para el diagnóstico preciso de la patología del manguito rotador. Objetivo: determinar la concordancia entre ecografía-artroscopía de hombro en lesiones del mango rotador en la Unidad Médica Atención Ambulatoria No. 55 de León, Guanajuato, México. Material y métodos: estudio experimental de una muestra de 37 pacientes con diagnóstico de lesión del mango rotador, en los que se realizó ecografía preoperatoria y posteriormente artroscopía de hombro del mismo lado. Los datos se sometieron a concordancia con el Índice de Kappa de Cohen. Resultados: fueron 37 pacientes en los que se identificó la concordancia global de 81%. El Índice de Kappa de Cohen fue de 0.76, considerada una buena concordancia. De los 7 pacientes sin correlación, en un paciente la ecografía mostró rotura parcial y por artroscopía mostró rotura completa del supraespinoso. En 2 pacientes la ecografía mostró rotura completa de mango rotador; durante la artroscopía, ambos mostraron rotura masiva del mango rotador. Conclusiones: la ecografía preoperatoria de hombro realizada por traumatología presenta una buena concordancia en el diagnóstico de roturas del mango rotador confirmadas por artroscopía.

[Comparativa funcional entre artroscopía y cirugía abierta para lesiones del mango rotador]. / Functional comparison between arthroscopy and open surgery for rotator cuff injuries.

Background: Rotator cuff injuries result in impaired functionality of the shoulder. The difference in shoulder functionality in patients treated with arthroscopy who required open surgery is still unknown. Objective: To determine if there is a difference in the functional evolution of the shoulder in patients who underwent surgery due to rotator cuff lesion which began with arthroscopy and ended in open surgery. Material and methods: A cohort, longitudinal, observational and comparative study was carried out. The Constant scale was applied to measure the functionality of the shoulder in patients who underwent surgery due to rotator cuff injury, prior to surgery, 3 and 6 months after it, from August 2021 to April 2022. Functionality between patients who started with arthroscopy and required surgery and with those who only underwent arthroscopy was compared. Results: 30 patients were included. Shoulder functionality in the preoperative period had a mean of 42.2 ± 18 (95% confidence interval [95% CI] 35.5-49.0), at 3 months of 48.18 ± 14 (95% CI 42.9-53.4) and at 6 months of 66.7 (95% CI 60.1-73.4), with a p = 0.001. The difference between the patients who required surgery was not significant (p = 0.3). Conclusions: The functional evolution of the shoulder in patients who underwent surgery due to rotator cuff injury improves over time. The type of surgery does not influence the functional evolution.

Introducción: las lesiones del mango rotador ocasionan deterioro de la funcionalidad del hombro. La diferencia en la funcionalidad del hombro en pacientes tratados con artroscopía que ameritaron cirugía abierta aún se desconoce. Objetivo: determinar si existe diferencia en la evolución funcional del hombro en pacientes intervenidos por lesión del mango rotador que iniciaron con artroscopía y terminaron en cirugía abierta. Material y métodos: se hizo un estudio de cohorte, longitudinal, observacional y comparativo. Se aplicó la escala Constant para medir la funcionalidad del hombro en pacientes intervenidos por lesión del mango rotador, previo a la cirugía, a los 3 y a los 6 meses posteriores a esta, entre agosto de 2021 y abril de 2022. Se comparó la funcionalidad entre los pacientes que iniciaron con artroscopía y que requirieron cirugía con los que solo se intervinieron con artroscopía. Resultados: se incluyeron 30 pacientes. La funcionalidad del hombro en el preoperatorio tuvo una media de 42.2 ± 18 (intervalo de confianza del 95% [IC 95%] 35.5-49.0), a los 3 meses se obtuvo una media de 48.18±14 (IC 95% 42.9-53.4) y a los 6 meses de 66.7 (IC 95% 60.1-73.4), con una p = 0.001. La diferencia entre los pacientes que requirieron cirugía no fue significativa (p = 0.3). Conclusiones: la evolución funcional del hombro en pacientes intervenidos por lesión del mango rotador mejora con el paso del tiempo. El tipo de cirugía no influye en la evolución funcional.

Treatment of calcific tendinopathy of the rotator cuff with ultrasound-guided puncture and aspiration.

OBJECTIVE: Calcific tendinopathy of the rotator cuff is a common condition caused by the deposition of calcium crystals in the tendons of the rotator cuff. This study aimed to analyze the effectiveness of ultrasound-guided puncture and aspiration in calcific tendinopathy of the should in 86 patients treated at our center and to determine the factors associated with poor prognosis after this treatment. MATERIAL AND METHODS: This retrospective descriptive study included 86 patients with calcific tendinopathy of the rotator cuff treated with ultrasound-guided puncture and aspiration between 2015 and 2019 for whom clinical and radiological variables were collected 1, 3, 6, and 12 months after the procedure. RESULTS: One year after treatment, 81.4% patients showed clinical improvement and 96.5% showed radiological improvement. Complications were observed in 34.9%; all complications were mild. CONCLUSIONS: Ultrasound-guided puncture and aspiration is an effective treatment for calcific tendinopathy of the shoulder, resulting in a high rate of clinical and radiological improvement and a low rate of minor complications. This technique has additional advantages, such as interaction with the patient and the lack of ionizing radiation.

Radiographic evaluation of the bicipital groove morphology does not predict intraarticular changes in the long head of biceps tendon.

INTRODUCTION AND OBJECTIVES: This study aimed to examine the clinical utility of the radiographic evaluation of the bicipital groove in predicting long head of biceps tendon (LHBT) pathology. MATERIAL AND METHODS: A prospective study was conducted, and sixty consecutive patients proposed to shoulder arthroscopic surgery were selected. Before surgery, a radiographic evaluation was performed with a supine and a Fisk radiograph. Most supine radiographs (>75%) were non-interpretable and were excluded from the study. As some Fisk radiographs (26.7%) were also non-interpretable, that left 44 interpretable radiographs in the study. These were measured for medial opening angle, total opening angle, width and depth of the bicipital groove. The radiographic measurements and the presence of LHBT pathology, as assessed at arthroscopy, were correlated. RESULTS: Radiographic evaluation of the bicipital groove showed a mean medial opening angle of 53 ±â€¯15° (23-90), a mean total opening angle of 80 ±â€¯26° (30-135), a mean width of 10.3 ±â€¯2.5 mm (6-19) and a mean depth of 4.1 ±â€¯1.5 mm (1-8). Men had higher medial opening angle (60 vs 50°, p = 0.044) and wider grooves (11.9 vs 9.7 mm, p = 0.019). Twenty-five patients (56.8%) were found to have an abnormal LHBT. No correlation was found between the radiographic measurements and LHBT pathology. Only age was correlated with a LHBT lesion (61.8 vs 46.3 years, p < 0.001). CONCLUSIONS: Our results show that there is no correlation between radiographic morphologic evaluation of the bicipital groove and LHBT pathology.

Eficacia del ácido tranexámico tópico en la artroplastia invertida de hombro / The efficacy of topical tranexamic acid in reverse shoulder arthroplasty

Introducción: El ácido tranexámico (ATX) tópico ha demostrado disminuir de forma significativa el sangrado en artroplastia de cadera y rodilla. A pesar de que en la artroplastia de hombro la mayoría de trabajos han demostrado su eficacia por vía intravenosa, la eficacia y dosis por vía tópica aún no está determinada. El objetivo fue comprobar si 1,5g de ATX en bajo volumen (30mL) administrado de manera tópica disminuiría el sangrado tras la artroplastia invertida de hombro (AIH). Material y métodos: Se revisaron de manera retrospectiva 177 pacientes consecutivos intervenidos de AIH por artropatía y fractura. Se recogieron datos de ΔHb y ΔHto a las 24h, débito del drenaje (mL), estancia media y complicaciones. Resultados: Los pacientes que recibieron ATX presentaron menor débito del drenaje tanto en artroplastia electiva (AIHE) (104 vs. 195mL, p=0,004) como por fractura (AIHF) (47 vs. 79mL, p=0,01). Aunque fue ligeramente menor en el grupo de ATX, no se observaron diferencias estadísticamente significativas en el sangrado sistémico (AIHE ΔHb 1,67 vs. 1,90mg/dL, AIHF 2,61 vs. 2,7mg/dL, p=0,79), estancia media (AIHE 2,0 vs. 2,3 días, p=0,34; 2,3 vs. 2,5, p=0,56) o necesidad de transfusión (0% en AIHE; AIHF 5% vs. 7%, p=0,66). Los pacientes intervenidos por fractura presentaron mayor tasa de complicaciones que aquellos que lo hicieron por artropatía (7% vs. 15,6%, p=0,04). No se observaron complicaciones asociadas al uso de ATX. Conclusión: La administración tópica de 1,5g de ATX reduce el sangrado de manera significativa en el sitio quirúrgico sin observarse complicaciones asociadas. La disminución del hematoma posquirúrgico permitiría evitar el uso sistemático de drenajes posquirúrgicos.(AU)

Introduction: Topical tranexamic acid (TXA) has been shown to decrease blood loss in knee and hip arthroplasty. Despite there is evidence about its effectiveness when administered intravenous, its effectiveness and optimal dose when used topically has not been established. We hypothesized that the use of 1.5g (30mL) of topical TXA could decrease the amount of blood loss in patients after reverse total shoulder arthroplasty (RTSA). Material and methods: One hundred and seventy-seven patients receiving a RSTA for arthropathy or fracture were retrospectively reviewed. Preoperative-to-postoperative change in hemoglobin (ΔHb) and hematocrit (ΔHct) level drain volume output, length of stay and complications were evaluated for each patient. Results: Patients receiving TXA has significant less drain output in both for arthropathy (ARSA) (104 vs. 195mL, p=0.004) and fracture (FRSA) (47 vs. 79mL, p=0.01). Systemic blood loss was slightly lower in TXA group, but this was not statistically significant (ARSA, ΔHb 1.67 vs. 1.90mg/dL, FRSA 2.61 vs. 2.7mg/dL, p=0.79). This was also observed in hospital length of stay (ARSA 2.0 vs. 2.3 days, p=0.34; 2.3 vs. 2.5, p=0.56) and need of transfusion (0% AIHE; AIHF 5% vs. 7%, p=0.66). Patients operated for a fracture had a higher rate of complications (7% vs. 15.6%, p=0.04). There were no adverse events related to TXA administration. Conclusion: Topical use of 1.5g of TXA decreases blood loss, especially on the surgical site without associated complications. Thus, hematoma decrease could avoid the systematic use of postoperative drains after reverse shoulder arthroplasty.(AU)

[Translated article] The efficacy of topical tranexamic acid in reverse shoulder arthroplasty / Eficacia del ácido tranexámico tópico en la artroplastia invertida de hombro

Introducción: El ácido tranexámico (ATX) tópico ha demostrado disminuir de forma significativa el sangrado en artroplastia de cadera y rodilla. A pesar de que en la artroplastia de hombro la mayoría de trabajos han demostrado su eficacia por vía intravenosa, la eficacia y dosis por vía tópica aún no está determinada. El objetivo fue comprobar si 1,5g de ATX en bajo volumen (30mL) administrado de manera tópica disminuiría el sangrado tras la artroplastia invertida de hombro (AIH). Material y métodos: Se revisaron de manera retrospectiva 177 pacientes consecutivos intervenidos de AIH por artropatía y fractura. Se recogieron datos de ΔHb y ΔHto a las 24h, débito del drenaje (mL), estancia media y complicaciones. Resultados: Los pacientes que recibieron ATX presentaron menor débito del drenaje tanto en artroplastia electiva (AIHE) (104 vs. 195mL, p=0,004) como por fractura (AIHF) (47 vs. 79mL, p=0,01). Aunque fue ligeramente menor en el grupo de ATX, no se observaron diferencias estadísticamente significativas en el sangrado sistémico (AIHE ΔHb 1,67 vs. 1,90mg/dL, AIHF 2,61 vs. 2,7mg/dL, p=0,79), estancia media (AIHE 2,0 vs. 2,3 días, p=0,34; 2,3 vs. 2,5, p=0,56) o necesidad de transfusión (0% en AIHE; AIHF 5% vs. 7%, p=0,66). Los pacientes intervenidos por fractura presentaron mayor tasa de complicaciones que aquellos que lo hicieron por artropatía (7% vs. 15,6%, p=0,04). No se observaron complicaciones asociadas al uso de ATX. Conclusión: La administración tópica de 1,5g de ATX reduce el sangrado de manera significativa en el sitio quirúrgico sin observarse complicaciones asociadas. La disminución del hematoma posquirúrgico permitiría evitar el uso sistemático de drenajes posquirúrgicos.(AU)

Introduction: Topical tranexamic acid (TXA) has been shown to decrease blood loss in knee and hip arthroplasty. Despite there is evidence about its effectiveness when administered intravenous, its effectiveness and optimal dose when used topically has not been established. We hypothesized that the use of 1.5g (30mL) of topical TXA could decrease the amount of blood loss in patients after reverse total shoulder arthroplasty (RTSA). Material and methods: One hundred and seventy-seven patients receiving a RSTA for arthropathy or fracture were retrospectively reviewed. Preoperative-to-postoperative change in hemoglobin (ΔHb) and hematocrit (ΔHct) level drain volume output, length of stay and complications were evaluated for each patient. Results: Patients receiving TXA has significant less drain output in both for arthropathy (ARSA) (104 vs. 195mL, p=0.004) and fracture (FRSA) (47 vs. 79mL, p=0.01). Systemic blood loss was slightly lower in TXA group, but this was not statistically significant (ARSA, ΔHb 1.67 vs. 1.90mg/dL, FRSA 2.61 vs. 2.7mg/dL, p=0.79). This was also observed in hospital length of stay (ARSA 2.0 vs. 2.3 days, p=0.34; 2.3 vs. 2.5, p=0.56) and need of transfusion (0% AIHE; AIHF 5% vs. 7%, p=0.66). Patients operated for a fracture had a higher rate of complications (7% vs. 15.6%, p=0.04). There were no adverse events related to TXA administration. Conclusion: Topical use of 1.5g of TXA decreases blood loss, especially on the surgical site without associated complications. Thus, hematoma decrease could avoid the systematic use of postoperative drains after reverse shoulder arthroplasty.(AU)

Características demográficas y clínicas de los pacientes sometidos a artroscopia del manguito rotador del hombro: estudio observacional / Demographic and clinical characteristics of patients undergoing rotator cuff arthroscopy of the shoulder: an observational study

Fundamentos: La causa más común de dolor de hombro son los cuadros clínicos relacionados con problemas del manguitorotador. Uno de los tratamientos más habituales es la cirugía artroscópica. El objetivo del estudio fue describir las característicasclínicas y epidemiológicas de los pacientes sometidos a este tipo de cirugías en España. Métodos: Se realizó un estudio de tipo descriptivo, observacional y de corte transversal con noventa participantes. Se recogieronlos datos de edad, sexo, realización de actividad laboral con sobreuso de miembros superiores (MMSS), índice de masa corporal (IMC),consumo de tabaco, diagnóstico de diabetes, realización de actividad física-deportiva y antecedentes de tratamientos prequirúrgicos.Finalmente, se realizó un análisis descriptivo de las variables y un análisis de correlaciones, mediante la prueba estadística de Pearson y Spearman según el tipo de variable.Resultados: La media de edad fue de 57,21 años con una desviación estándar (DE) de 8,5 (Intervalo de Confianza [IC] del 95%,55,41-59,00). En cuanto a su IMC, la media fue de 28,49 con una DE de 4,9 (IC del 95%, 27,49-29,53), siendo el 35,6% personas conobesidad (IMC mayor de 30). El diagnóstico médico de los sujetos fue en un 51,1% de rotura total del manguito rotador. Por otro lado,la intensidad de realización de actividad física fue de una hora o menos a la semana en el 87,8% de la muestra. Por último, en relacióncon el tratamiento previo de fisioterapia, el 69,7% de los sujetos habían recibido algún tipo de intervención. Conclusiones: Las características demográficas y clínicas encontradas están en consonancia con las de otras poblacionesestudiadas previamente, y los factores de asociación entre ellas refrendan los factores de riesgo ya señalados previamente (edad,obesidad, sobreuso de MMSS), cobrando especial importancia la edad avanzada.(AU)

Background: The most common cause of shoulder pain is clinical pictures related to rotator cuff problems. One of the mostcommon treatments is arthroscopic surgery. The objective was to describe the clinical and epidemiological characteristics of patientsundergoing this type of surgery in Spain. Methods: A descriptive, observational and cross-sectional study with ninety participants was carried out. Data on age, sex, perfor-mance of work activity with overuse of upper limbs, body mass index (BMI), smoking habit, diagnosis of diabetes, performance of physi-cal-sports activity and history of pre-surgical treatments were collected. Finally, a descriptive analysis of the variables and an analysis ofcorrelations were carried out, using the Pearson and Spearman statistical test according to the type of variable.Results: The mean age was 57.21 years with a standard deviation (SD) of 8.5 (95% CI, 55.41-59.00). Regarding their BMI, the meanwas 28.49 with a SD of 4.9 (95% CI, 27.49-29.53), with 35.6% being obese (BMI greater than 30). The medical diagnosis of the subjectswas 51.1% total rotator cuff tear. On the other hand, the intensity of physical activity was one hour or less per week in 87.8% of thesample. Finally, in relation to the previous physiotherapy treatment, 69.7% of the subjects had received some type of intervention. Conclusions: The demographic and clinical characteristics found are consistent with those of other previously studied populations,and the association factors between them endorse the previously mentioned risk factors, with advanced age gaining special importance.(AU)

Rotator cuff debridement compared with rotator cuff repair in arthroscopic treatment of calcifying tendinitis of the shoulder: A systematic review and meta-analysis. / Desbridamiento frente a reparación asociada del manguito rotador en el tratamiento artroscópico de la tendinitis calcificante del hombro: una revisión sistemática y metaanálisis.

INTRODUCTION: Although conservative treatment of calcific tendinopathy has a high success rate, arthroscopic excision of the calcific deposit is occasionally necessary. Controversy exists as to whether the remaining rotator cuff defect can be left in situ or should be repaired to achieve better functional outcomes. This study aimed to compare the results of debridement versus debridement combined with suturing in arthroscopic surgery for calcific tendinopathy. METHODOLOGY: MEDLINE, EMBASE, Cochrane Library, and Web of Science were searched from inception to February 2023 for articles on arthroscopic treatment of calcific tendinopathy. Functional outcomes (VAS, ASES, UCLA, and Constant) and the number of complications were analyzed. The effect size was calculated using Cohen's d-index. RESULTS: Twenty-one studies were included, including a total of 1172 patients aged between 44.7 and 55 years. The mean follow-up time was 24.7 months. The combined ES estimates for the total score of the VAS, ASES, UCLA, and Constant scales were very strong (>1.0) for both debridement and combined debridement with suture. The ES estimates for the number of total complications were 1.75 (95% CI: 0.08-3.43, I2 = 0%) for debridement and 9.07 (95% CI: -0.03-18.17, I2 = 50.4%) for combined debridement with suture. CONCLUSIONS: Both arthroscopic procedures improve the total score significantly on the EVA, ASES, UCLA, and Constant scales. However, a higher proportion of complications was observed in the group that performed suturing. In this regard, we must consider whether it is really necessary to repair all partial tears after the calcified deposits removal.

Injury epidemiology in competing and non-competing spanish crossfit® practitioners / Epidemiología lesional en practicantes de crossfit® competidores y no competidores españoles

La falta de estudios sobre lesiones en Crossfit® en España, motiva la realización de este estudio epidemiológico descriptivo, observacional y retrospectivo, analizando la incidencia y las características de las lesiones sufridas por practicantes de Crossfit® competidores y no competidores. Se registraron las lesiones sufridas por 434 deportistas entre el 1 de enero y el 31 de diciembre de 2019. Se registraron datos sobre el número de lesiones, lesiones más frecuentes, distribución, tipo, ubicación, el momento en que ocurrieron y la causa de las lesiones que afectan el sistema musculoesquelético. La tasa de lesiones en esta población fue de 3,48 lesiones por 1000 horas de exposición al riesgo. El hombro y la zona lumbar fueron las zonas anatómicas más frecuentemente lesionadas, siendo el musculo y el tendón el tejido de asiento más habitual de las lesiones. El Powerlifting fue la actividad más lesiva. (AU)

The lack of studies on Crossfit® injuries in Spain, motivates the realization of this descriptive, observational and retrospective epidemiological study, analyzing the incidence and characteristics of injuries suffered by Crossfit® competitors and non-competitors.The injuries suffered by 434 athletes between from January 1st to December 31st 2019 were recorded. We collected data on the number of injuries, the most frequent injuries, their distribution, type, location, the moment at which these occurred and the cause of the injuries affecting the musculoeskeletal system. We found that the injury rate in this population was 3,48 injuries per 1000 hours of risk. The shoulder and lumbar area were the most frequently injured anatomical areas, with muscle and tendon being the most common seat tissue of injuries. Powerlifting was the most damaging activity. (AU)

Efficacy of platelet-rich plasma in rotator cuff repair: systematic review and meta-analysis. / Eficacia del plasma rico en plaquetas en la reparación del manguito rotador: revisión sistemática y metaanálisis.

OBJECTIVE: To analyze the efficacy and safety after the application of platelet-rich-plasma (PRP) as an adjuvant in arthroscopic rotator cuff repairs. MATERIAL AND METHODS: A bibliographic search of the literature of prospective studies with level of evidence one or two was carried out from January 2004 to December 2021, including studies that compare the functional and re-tear results after arthroscopic cuff repair rotator with or without PRP. RESULTS: A total of 281 articles were identified, of which 14 met the inclusion criteria. The overall re-rupture rate was 24%. In the PRP group, a decrease in the re-rupture rate and better functional results were demonstrated, although these differences were not significant. CONCLUSIONS: Adjuvant treatment with PRP has shown promising results, although there is not yet enough evidence to provide a clear advantage for routine use in clinical practice.

[Translated article] The efficacy of topical tranexamic acid in reverse shoulder arthroplasty.

INTRODUCTION: Topical tranexamic acid (TXA) has been shown to decrease blood loss in knee and hip arthroplasty. Despite there is evidence about its effectiveness when administered intravenous, its effectiveness and optimal dose when used topically have not been established. We hypothesised that the use of 1.5g (30mL) of topical TXA could decrease the amount of blood loss in patients after reverse total shoulder arthroplasty (RTSA). MATERIAL AND METHODS: One hundred and seventy-seven patients receiving a RSTA for arthropathy or fracture were retrospectively reviewed. Preoperative-to-postoperative change in haemoglobin (ΔHb) and hematocrit (ΔHct) level drain volume output, length of stay and complications were evaluated for each patient. RESULTS: Patients receiving TXA has significant less drain output in both for arthropathy (ARSA) (104 vs. 195mL, p=0.004) and fracture (FRSA) (47 vs. 79mL, p=0.01). Systemic blood loss was slightly lower in TXA group, but this was not statistically significant (ARSA, ΔHb 1.67 vs. 1.90mg/dL, FRSA 2.61 vs. 2.7mg/dL, p=0.79). This was also observed in hospital length of stay (ARSA 2.0 vs. 2.3 days, p=0.34; 2.3 vs. 2.5, p=0.56) and need of transfusion (0% AIHE; AIHF 5% vs. 7%, p=0.66). Patients operated for a fracture had a higher rate of complications (7% vs. 15.6%, p=0.04). There were no adverse events related to TXA administration. CONCLUSION: Topical use of 1.5g of TXA decreases blood loss, especially on the surgical site without associated complications. Thus, haematoma decrease could avoid the systematic use of postoperative drains after reverse shoulder arthroplasty.

Efectividad de las Pausas Activas con Ejercicios de Fuerza versus Flexibilidad sobre la Función de Hombro e Intensidad de Dolor en Trabajadores de Escritorio / Effect of active breaks with strength exercises vs. flexibility over shoulder function and pain intensity in desk workers

Introducción. Actualmente existe un aumento considerable de lesiones de miembros superiores en trabajadores con labores de escritorio y trabajo de escritorio. Una de las lesiones más comunes es el DHRMR (Dolor de Hombro Relacionado al Manguito Rotador).1,2 Por esta razón, la presente investigación buscó intervenir un grupo de trabajadores de oficina de la Universidad de Las Américas, campus Santiago Centro con dolor de hombro3, realizando pausas activas (PA), y ejercicios focalizados que buscaban aliviar el dolor y aumentar la funcionalidad. Objetivo. Comparar las PA basadas en ejercicios de fuerza, versus, las PA basadas en ejercicios de flexibilidad sobre las variables de función de hombro, dolor, dinamometría y síntomas asociados a sospecha de ansiedad y depresión en trabajadores administrativo de la Universidad de Las Américas, campus Santiago Centro. Métodos. Estudio pseudo-experimental, simple ciego (individuos no conocen a que grupo pertenecen), 40 participante mayores de 18 años que presentaron dolor de hombro en un periodo de 6 meses. Para la evaluación se utilizaron escalas DASH, ASES, EVA y GOLDBERG. Se separaron en dos grupos, grupo de ejercicios de fuerza y un grupo de ejercicios de flexibilidad, la aleatorización de los participantes en cada grupo se realizó con el software OxMaR. Resultados. Se observaron en todas las variables que no existieron diferencias significativas entre ambos grupos. Conclusión. No se observaron mayores diferencias entre ambas intervenciones, con una tendencia a una mayor mejoría al grupo de fuerza.

Background. Currently there is a considerable increase in upper limb injuries in workers with desk and teleworking tasks. One of the most common injuries is the DHRMR (Shoulder Pain Related to the Rotator Cuff).1,2 For this reason, the present investigation sought to intervene a group of office workers with shoulder pain3, performing active pauses (PA), and focused exercises that sought to relieve pain and increase functionality. Objective. To compare BP based on strength exercises versus BP based on flexibility exercises on the variables of shoulder function, pain, dynamometry, and symptoms associated with suspicion of anxiety and depression. Methods. Single-blind clinical trial, 40 subjects over 18 years of age who presented shoulder pain in a period of 6 months. For the evaluation, DASH, ASES, EVA and GOLDBERG scales were used. They were separated into two groups, a strength exercise group and a flexibility exercise group. Results. It was observed in all the variables that there were no significant differences between both groups. Conclusion. No major differences were observed between the two interventions, with a tendency to a greater improvement in the strength group.

The efficacy of topical tranexamic acid in reverse shoulder arthroplasty. / Eficacia del ácido tranexámico tópico en la artroplastia invertida de hombro.

INTRODUCTION: Topical tranexamic acid (TXA) has been shown to decrease blood loss in knee and hip arthroplasty. Despite there is evidence about its effectiveness when administered intravenous, its effectiveness and optimal dose when used topically has not been established. We hypothesized that the use of 1.5g (30mL) of topical TXA could decrease the amount of blood loss in patients after reverse total shoulder arthroplasty (RTSA). MATERIAL AND METHODS: One hundred and seventy-seven patients receiving a RSTA for arthropathy or fracture were retrospectively reviewed. Preoperative-to-postoperative change in hemoglobin (ΔHb) and hematocrit (ΔHct) level drain volume output, length of stay and complications were evaluated for each patient. RESULTS: Patients receiving TXA has significant less drain output in both for arthropathy (ARSA) (104 vs. 195mL, p=0.004) and fracture (FRSA) (47 vs. 79mL, p=0.01). Systemic blood loss was slightly lower in TXA group, but this was not statistically significant (ARSA, ΔHb 1.67 vs. 1.90mg/dL, FRSA 2.61 vs. 2.7mg/dL, p=0.79). This was also observed in hospital length of stay (ARSA 2.0 vs. 2.3 days, p=0.34; 2.3 vs. 2.5, p=0.56) and need of transfusion (0% AIHE; AIHF 5% vs. 7%, p=0.66). Patients operated for a fracture had a higher rate of complications (7% vs. 15.6%, p=0.04). There were no adverse events related to TXA administration. CONCLUSION: Topical use of 1.5g of TXA decreases blood loss, especially on the surgical site without associated complications. Thus, hematoma decrease could avoid the systematic use of postoperative drains after reverse shoulder arthroplasty.