Study on the anatomic relationship between the clavicle and the coracoid process using computed tomography scans of the shoulder.

BACKGROUND: The current trend in the treatment of acromioclavicular dislocations is to reconstruct the coracoclavicular ligaments by using transosseous tunnels in the coracoid process or in the clavicle, yet there is no definition as to the location of these. To study the anatomic relationship between the coracoid process and the clavicle, we made measurements to find a convergence point (cP) between them that has intraoperative applicability for creating transosseous tunnels. METHODS: We analyzed 74 computed tomography scans (40 female and 34 male patients). Measurements were taken in the axial and sagittal planes and obtained from a cP, as determined by the intersection of the cortical surface of the clavicle and the coracoid process, with various relationships having been established. RESULTS: On average, the cP was determined to be about 2.9 cm and 2.5 cm distant from the coracoid process apex for male and female patients, respectively, whereas the width at this position was determined to be 2.1 cm and 1.9 cm. In the clavicle, this point is on average 2.9 cm and 2.5 cm distant from the acromioclavicular joint in male and female patients, respectively, and its anteroposterior width at this point is on average 1.9 cm and 1.6 cm. CONCLUSION: The cP of the clavicle and the coracoid process was determined with the aim of preparing bone tunnels in operations for treating acromioclavicular dislocations.

REASSESSMENT OF FATTY INFILTRATION BY MAGNETIC RESONANCE TEN YEARS AFTER ROTATOR CUFF INJURY REPAIR.

Quantitative assessments of rotator cuff muscle changes after successful tendon repair are scarce. On the other hand, semiquantitative and subjective assessments are more abundant, but their findings are controversial. One hypothesis about this divergence is that there is an immediate decrease in the proportion of fatty infiltration after surgical repair. Objective: Reassess fatty infiltration and muscle trophism of the rotator cuff after ten years of repair. Methods: Prospective comparison study. A total of 10 patients diagnosed with rotator cuff injury underwent repair of the lesion, and MRI of the affected shoulder was performed in the preoperative, immediate postoperative, and late postoperative periods (ten years). A comparative study was performed at every moment. Results: At 5% significance level, the mean of the immediate postoperative period was higher for the variable trophism and true muscle percentage. Fatty infiltration showed no difference in the three periods observed. Conclusion: Fatty infiltration does not change in the three periods evaluated and muscle trophism is greater in the immediate postoperative period. After ten years of rotator cuff repair, muscle trophism and fatty infiltration remain with statistically significantly equal results when compared to the preoperative period. Level of Evidence II, Prospective Comparison Study.

Avaliações quantitativas das mudanças musculares do manguito rotador após reparos bem-sucedidos são escassas. Em contrapartida, avaliações semiquantitativas e subjetivas são mais abundantes, porém com achados controversos. Uma hipótese sobre essa discrepância é que a diminuição imediata na proporção de gordura que ocorre logo após o reparo. Objetivo: Reavaliar a infiltração gordurosa e o trofismo muscular do manguito rotador passados dez anos do reparo. Métodos: Estudo prospectivo comparativo realizado com dez pacientes diagnosticados com lesão do manguito rotador que foram submetidos a reparo da lesão e exames de ressonância magnética do ombro acometido no pré-operatório, no pós-operatório imediato e no pós-operatório tardio (dez anos), a fim de comparar as mudanças musculares em cada momento. Resultados: Ao nível de significância de 5%, a média do pós-operatório imediato foi superior para as variáveis trofismo e porcentagem muscular verdadeira. A infiltração gordurosa não apresentou diferença nos três períodos observados. Conclusão: A infiltração gordurosa não se altera nos três períodos avaliados, e o trofismo muscular é maior no pós-operatório imediato. Após dez anos do reparo do manguito rotador, o trofismo muscular e a infiltração gordurosa se mantêm com resultados estatísticos significativamente iguais quando comparados com o pré-operatório. Nível de Evidência II, Estudo Prospectivo Comparativo.

Detection of Cutibacterium acnes in Tissue Samples from Primary Clean Shoulder Surgeries - Part I.

Objective The present study aimed to identify bacterial agents in shoulder surgery specimens from patients with no history of previous shoulder infection or surgery. Methods Tendon, bursa, and bone specimens were collected during surgery, stored in sterile dry bottles, and sent to a hospital-associated laboratory for culture growth analysis in media for aerobic and anaerobic agents. Findings from 141 samples from 47 shoulders were analyzed. Results The cultures were negative in 46 cases (97.8%) and in 140 samples (99.2%). The culture was positive in a single patient, with growth of Staphylococcus hominis from one of three specimens collected. Conclusions The rates of bacterial growth were not consistent with the international literature, indicating the low effectiveness of laboratory methods used in Brazil.

Evaluation of the Clinical Outcomes of the Arthroscopic Treatment of Rotator Cuff Tears Using the Modified Suture Bridge Technique.

Objective To evaluate the postoperative clinical outcomes of the arthroscopic repair of rotator cuff injuries using a suture configuration we have developed based on a modification of the Suture Bridge (Arthrex, Naples, FL, United States). Methods A retrospective study with 28 male (41.2%) and 40 female (58.8%) subjects with a mean age of 60 years. All patients underwent rotator cuff repair with the modified Suture Bridge technique and follow-up for a minimum period of 18 months. The clinical assessment was performed using the University of California, Los Angeles (UCLA) Shoulder Score. Results The mean postoperative range of motion was of 134° (range: 110° to 140°) for elevation, 58° (range: 40° to 70°) for lateral rotation, and T10 (range: L4 to T7) for medial rotation. The mean increase was of 15° for elevation, 14° for lateral rotation, and 2 vertebral levels for medial rotation. The outcomes were excellent in 61 (83.6%) cases, good in 8 (10.9%), and regular in 4 cases (5.5%). Conclusion The modified Suture Bridge technique for the arthroscopic repair of rotator cuff injuries led to excellent or good postoperative clinical outcomes in most cases (69; 94.5%).

EVALUATION OF SCAPULAR DYSKINESIA IN PATIENTS THAT UNDERWENT A LATARJET PROCEDURE.

Objective: To quantitatively assess the scapular movement of patients who underwent Latarjet surgery and to identify if they present scapular dyskinesia (SD), as well as correlate with the clinic state and the elevation degree of the shoulder. Methods: A cross-sectional study was carried out at the Movement Analysis Laboratory (LAM), at the Institute of Physical Activity and Sport Sciences, that quantitatively evaluated, using spherical retroreflective markers, the scapular movements of the control group (10 volunteers) and 22 patients (23 operated shoulders) that had been submitted to Latarjet surgery, between 2011 and 2016, with at least one year postoperative. The results of the control group were used as a parameter of normality and compared to those of the operated group. Posterior inclination, superior rotation, and medial rotation of the scapula were evaluated at angles of 60°, 90°, and 120° of elevation, both in ascending and descending phases. The statistical analysis used was the multivariate variance (MANOVA), comparing the right and left sides of the control group and, subsequently, the control group with the postoperative group (p = 0.05 in all tests). Results: When comparing the mean of the results of the quantitative evaluation of the control group with the operated group, no statistically significant differences were found between the two groups and between the dominant and non-dominant sides of the control group. Conclusion: Latarjet surgery does not cause SD, although there are alterations in some plane of the scapular movements in the ascending and/or descending phase. Level of Evidence III, Retrospective Comparative Study.

Objetivo: Avaliar, de forma quantitativa, o movimento escapular dos pacientes submetidos à cirurgia de Latarjet e identificar se apresentam discinesia escapular (DE). Além disso, correlacionar com a clínica e com o grau de elevação do ombro. Método: Estudo transversal realizado no Laboratório de Análise do Movimento (LAM), no Instituto de Ciências da Atividade Física e Esporte que avaliou de forma quantitativa, utilizando marcadores retro-refletivos esféricos, os movimentos escapulares do grupo controle (10 voluntários) e 22 pacientes (23 ombros operados), submetidos à cirurgia de Latarjet, entre os anos de 2011 e 2016, com pelo menos um ano de pós-operatório. Foram utilizados os resultados do grupo controle como parâmetro de normalidade e posteriormente comparados aos do grupo de pacientes operados. Avaliadas a inclinação posterior, rotação superior e rotação medial das escápulas nos ângulos de 60°, 90° e 120° de elevação, tanto na fase ascendente quanto na descendente. A análise estatística utilizada foi a multivariada da variância (MANOVA) comparando os lados direito e esquerdo do grupo controle e posteriormente o grupo controle com o grupo pós-operatório (p = 0,05 em todos os testes). Resultados: Ao compararmos a média dos resultados da avaliação quantitativa do grupo controle com o grupo dos operados, não foram evidenciadas diferenças estatisticamente significativas entre os dois grupos, assim como os lados dominante e o não dominante do grupo controle. Conclusão: A cirurgia de Latarjet não causa DE, apesar de haver alterações em algum plano dos movimentos escapulares na fase ascendente e/ou descendente. Nível de Evidência III, Estudo Retrospectivo Comparativo.

Humeral Head Osteonecrosis: Outcomes of Hemiarthroplasty After Minimum 10-Year Follow-Up.

Objective To analyze long-term functional and radiographic results of partial shoulder replacement for humeral head osteonecrosis. Methods Retrospective review of thirteen cases, with a mean postoperative follow-up of 17 years (range 10 to 26 years). The findings from the last follow-up were compared to those in which the patients had one year of postoperative follow-up. Functional assessment consisted of shoulder movement measurements and application of the University of California, Los Angeles (UCLA) shoulder score. All patients underwent radiographic examination to measure glenoid erosion, proximal humeral migration and lateral glenohumeral dislocation. Results Glenoid erosion increased over time significantly ( p < 0.05). Paradoxically, all active shoulder movements also improved ( p < 0.05), while UCLA scores remained the same. Radiographic deterioration was not correlated with clinical function. We had an 84.7% survival rate for arthroplasties after a mean time of 16 years. Conclusions Early functional outcomes were maintained in the long run and do not correlate with radiographic deterioration (increased erosion of the glenoid).

Current Options in Tendon Transfers for Irreparable Posterosuperior Rotator Cuff Tears.

Massive irreparable posterosuperior rotator-cuff tears are debilitating lesions that usually require surgical treatment. Even though there is no consensus regarding the best surgical technique, tendinous transfers around the shoulder are the most commonly performed procedures. The latissimus dorsi tendon remains the most commonly used, but different modifications to the original technique have been shown to minimize complications and to improve functional results and satisfaction. Other techniques, such as the transfer of the lower trapezius tendon, are promising and should be considered, especially for patients with isolated loss of external rotation. The present paper is a literary review regarding tendon transfers for irreparable posterosuperior rotator-cuff tears.

Comparative Clinical Evaluation of Two Techniques of Arthroscopic Treatment of Partial Articular Rotator Cuff Tears.

Objectives To evaluate the clinical results of patients submitted to arthroscopic treatment of partial lesion of the articular part of the rotator cuff by transtendon suture techniques and after completing the lesion and to compare the postoperative recovery time of the two techniques. Method Retrospective study based on the identification of all cases with partial lesion of the articular part of the rotator cuff submitted to arthroscopic treatment from October 1999 to December 2016 at the Shoulder and Elbow Group of our institution. Thirty-nine patients were included and divided into two groups: those who underwent the transtendon technique and those in whom the lesion was completed. The two groups were statistically similar. The respective medical records were analyzed as well as the identification of the applied technique, the postoperative results, and the related complications. The functional evaluation was performed using the score of the University of California at Los Angeles (UCLA). Results There was no statistically relevant difference between the groups, with a mean UCLA score of 32, and no difference in the time required for rehabilitation. Conclusion There was no difference between the clinical outcome of the patients, regardless of the technique used to repair the partial lesions of the articular part of the rotator cuff, with satisfactory results in 93% of the cases.

Latissimus Dorsi Tendon Transfer using Tendinous Allograft for Irreparable Rotator Cuff Lesions: Surgical Technique.

Latissimus dorsi transfer around the shoulder is the most frequently used surgical technique to treat young patients with irreparable posterosuperior rotator cuff lesions. This technique, as initially described and popularized by Gerber et al., has two main drawbacks that may predispose to complications and unsatisfactory functional results: 1) postoperative rupture of the origin of the deltoid, as its detachment from the acromion is necessary during the superior approach to the shoulder; and 2) postoperative rupture of the transferred tendon. In an attempt to avoid these problems, the authors have developed the following modifications to the original technique. Through a deltopectoral approach, the latissimus dorsi tendon is identified and detached from the humerus shaft. After being reinforced and elongated with a tendinous allograft, it is transferred around the humerus and fixed to the superolateral aspect of the greater tubercle. No rigid thoraco-brachial immobilization is used postoperatively.

Hill-Sachs lesion measurement with tridimensional models in anterior shoulder instability.

OBJECTIVE: To evaluate the reproducibility and repeatability of Hill-Sachs lesion measurement from computed tomography images, with computer software and tridimensional prototype. METHODS: Three-dimensional models were made from computed tomography images from 14 patients with anterior shoulder instability, using InVesalius 3.0® software. Hill-Sachs lesions were measured with Rhinocerus 5.0® software with pre-determined position. Mid-lateral distance, perpendicular to humeral shaft, cranial-caudal distance, parallel to humeral shaft, and the longitudinal distance of the lesion were measured. Using the Printer-ZP 310 three-dimensional printer, plaster models were made. To measure the Hill-Sachs lesion, a calibrated universal digital caliper was used in the same way as the software. RESULTS: There was intra-observer and inter-observer variability for measurement of the same model. Observers did not perform the measurements in a similar way, showing difficulty to use the method (p < 0.05). Using the software to measure the mid-lateral distance, as well as in the measurement with the caliper, the model type influenced the measurements for each of the observers, rendering the method invalid (p < 0.05). CONCLUSION: There was no reproducibility and repeatability for Hill-Sachs lesion measurement between plaster models and software models.

OBJETIVO: Verificar se há reprodutibilidade e repetibilidade das mensurações diretas da lesão de Hill-Sachs (HS), a partir de imagens de reconstrução tomográficas, com o uso do programa de computador e em modelos obtidos por impressora tridimensional. MÉTODOS: Usaram-se imagens tomográficas de 14 pacientes com luxação recidivante do ombro feitas pelo serviço para construção dos modelos tridimensionais virtuais (software InVesalius 3.0®). Com o software Rhinocerus 5.0® mensurou-se a lesão de HS e padronizou-se uma posição para aferição das seguintes medidas: a maior distância mediolateral, perpendicular ao eixo da diáfise, a distância craniocaudal, pararela à diáfise, e a maior distância numa linha imaginária no eixo longitudinal da lesão. Com impressora tridimensional Printer-ZP 310 confeccionou-se os protótipos em gesso. Usou-se paquímetro digital universal calibrado, para fazer as três medidas da lesão de HS pré-estabelecidas. As mensurações foram feitas por aferição cega. RESULTADOS: Houve grande variabilidade intraobservador e interobservador para as medidas em uma mesma peça. Os observadores não fizeram as medições de forma similar, o que caracteriza a existência de dificuldade da mensuração pelo método (p < 0,05). Nas mensurações no computador para aferição da distância mediolateral e na medição da peça com paquímetro, o tipo da peça influenciou a forma de feitura de medidas por cada um dos observadores, o que tornou o método de mensuração inválido (p < 0,05). CONCLUSÃO: Não houve reprodutibilidade e repetibilidade nas mensurações da lesão de HS, tanto em modelos de gesso quanto nas imagens de reconstrução tomográficas.

Articular reconstruction of the humeral head with autogenous allograft in the treatment of the osteonecrosis.

The authors describe a surgical biological reconstruction of the humeral head with frozen autogenous allograft technique for the treatment of young patients with focal osteonecrosis of the humeral head. This represents a possible alternative, maybe even definitive for some patients, when compared to hemiarthroplasty or total shoulder arthroplasty. The technique consists of the fixation of a frozen autogenous allograft with previously-molded articular cartilage from the humeral head, after cleansing the osteonecrotic focus. Five patients under 50 years of age were treated, with three very satisfactory results, one patient was lost to follow-up, and one patient had an unsatisfactory result (converted to hemiarthroplasty). The study describes the technique in detail and the three cases with a longer follow-up time.

Os autores descrevem a técnica cirúrgica de reconstrução biológica da cabeça umeral com enxerto ósseo homólogo congelado usada no tratamento da osteonecrose segmentar da cabeça umeral em pacientes jovens e destacam a abordagem como uma possibilidade opcional e talvez definitiva à hemiartroplastia ou artroplastia total do ombro. Resumidamente, a técnica consiste em reconstruir a falha encontrada na região necrótica da cabeça umeral com o uso de enxerto ósseo congelado com cartilagem para refazer a superfície articular comprometida. No total, cinco pacientes com menos de 50 anos foram tratados com essa técnica, conseguiram-se resultados muito satisfatórios em três deles, uma perda de seguimento e um resultado negativo, convertido para hemiartroplastia. O estudo descreve a técnica usada com detalhes, bem como os três casos com maior tempo de seguimento.

Reassessment of fatty infiltration by magnetic resonance ten years after rotator cuff injury repair / Reavaliação da infiltração gordurosa por ressonância magnética após dez anos de reparo de lesão do manguito rotador

ABSTRACT Quantitative assessments of rotator cuff muscle changes after successful tendon repair are scarce. On the other hand, semiquantitative and subjective assessments are more abundant, but their findings are controversial. One hypothesis about this divergence is that there is an immediate decrease in the proportion of fatty infiltration after surgical repair. Objective: Reassess fatty infiltration and muscle trophism of the rotator cuff after ten years of repair. Methods: Prospective comparison study. A total of 10 patients diagnosed with rotator cuff injury underwent repair of the lesion, and MRI of the affected shoulder was performed in the preoperative, immediate postoperative, and late postoperative periods (ten years). A comparative study was performed at every moment. Results: At 5% significance level, the mean of the immediate postoperative period was higher for the variable trophism and true muscle percentage. Fatty infiltration showed no difference in the three periods observed. Conclusion: Fatty infiltration does not change in the three periods evaluated and muscle trophism is greater in the immediate postoperative period. After ten years of rotator cuff repair, muscle trophism and fatty infiltration remain with statistically significantly equal results when compared to the preoperative period. Level of Evidence II, Prospective Comparison Study.

RESUMO Avaliações quantitativas das mudanças musculares do manguito rotador após reparos bem-sucedidos são escassas. Em contrapartida, avaliações semiquantitativas e subjetivas são mais abundantes, porém com achados controversos. Uma hipótese sobre essa discrepância é que a diminuição imediata na proporção de gordura que ocorre logo após o reparo. Objetivo: Reavaliar a infiltração gordurosa e o trofismo muscular do manguito rotador passados dez anos do reparo. Métodos: Estudo prospectivo comparativo realizado com dez pacientes diagnosticados com lesão do manguito rotador que foram submetidos a reparo da lesão e exames de ressonância magnética do ombro acometido no pré-operatório, no pós-operatório imediato e no pós-operatório tardio (dez anos), a fim de comparar as mudanças musculares em cada momento. Resultados: Ao nível de significância de 5%, a média do pós-operatório imediato foi superior para as variáveis trofismo e porcentagem muscular verdadeira. A infiltração gordurosa não apresentou diferença nos três períodos observados. Conclusão: A infiltração gordurosa não se altera nos três períodos avaliados, e o trofismo muscular é maior no pós-operatório imediato. Após dez anos do reparo do manguito rotador, o trofismo muscular e a infiltração gordurosa se mantêm com resultados estatísticos significativamente iguais quando comparados com o pré-operatório. Nível de Evidência II, Estudo Prospectivo Comparativo.

Clinical evaluation of arthroscopic treatment of shoulder adhesive capsulitis.

OBJECTIVE: To evaluate the results of arthroscopic releases performed in patients with adhesive capsulitis refractory to conservative treatment. METHODS: This was a retrospective study, conducted between 1996 and 2012, which included 56 shoulders (52 patients) that underwent surgery; 38 were female, and 28 had the dominant side affected. The mean age was 51 (29-73) years. The mean follow-up was 65 (12-168) months and the mean preoperative time was 8.9 (2-24) months. According to Zukermann's classification, 23 cases were considered primary and 33 secondary. With the patient in the lateral decubitus position, circumferential release of the joint capsule was performed: joint debridement; rotator interval opening; coracohumeral ligament release; anterior, posterior, inferior, and finally antero-inferior capsulotomy. A subscapularis tenotomy was performed when necessary. All patients underwent intense physical therapy in the immediate postoperative period. In 33 shoulders, an interscalene catheter was implanted for anesthetic infusion. Functional results were evaluated by the UCLA criteria. RESULTS: Improved range of motion was observed: mean increase of 45° of elevation, 41° of external rotation and eight vertebral levels of medial rotation. According to the UCLA score excellent results were obtained in 25 (45%) patients; good, in 24 (45%); fair, in two (3%); and poor, in two (7%). Patients who had undergone inferior capsulotomy achieved better results. Only 8.8% of patients who used the anesthetic infusion catheter underwent postoperative manipulation. Seven patients had complications. CONCLUSION: There was improvement in pain and range of motion. Inferior capsulotomy leads to better results. The use of the interscalene infusion catheter reduces the number of re-approaches.

OBJETIVO: Avaliar os resultados das liberações artroscópicas feitas em pacientes com capsulite adesiva refratária ao tratamento conservador. MÉTODOS: Trabalho retrospectivo feito entre 1996 e 2012, com 56 ombros (52 pacientes) submetidos a cirurgia; 38 eram do sexo feminino e 28 tinham o lado dominante acometido. A média de idade foi de 51 (29-73) anos. O seguimento médio, de 65 (12-168) meses e o tempo médio de pré-operatório, de 8,9 (2-24) meses. Pela classificação de Zukermann, 23 casos foram considerados primários e 33 secundários. Com o paciente em decúbito lateral, fizemos a liberação circunferencial da cápsula articular: desbridamento articular, abertura do intervalo rotador, liberação do ligamento coracoumeral, capsulotomia anterior, posterior, inferior e finalmente, anteroinferior. A tenotomia do subescapular foi feita quando necessária. Todos foram submetidos a fisioterapia intensa no pós-operatório imediato. Em 33 ombros foi implantado o catéter interescalênico para infusão de anestésico. Os resultados funcionais foram avaliados pelos critérios do escore da University of California at Los Angeles (UCLA). RESULTADOS: Obtivemos melhoria do arco de movimento: aumento médio de 45° de elevação, 41° de rotação lateral e oito níveis vertebrais de rotação medial. Pelo escore da UCLA, tivemos 25 resultados excelentes (45%), 25 bons (45%), dois razoáveis (3%) e quatro ruins (7%). Os pacientes que fizeram capsulotomia inferior evoluíram melhor do que os que não fizeram. Apenas 8,8% dos pacientes que usaram cateter de infusão anestésico foram submetidos a manipulação no pós-operatório. Sete pacientes apresentaram complicações. CONCLUSÃO: Houve melhoria da dor e do arco de movimento. A capsulotomia inferior leva a melhores resultados. O uso do catéter interescalênico de infusão anestésica diminui o número de reabordagens.

Evaluation of the functional results after rotator cuff arthroscopic repair with the suture bridge technique.

OBJECTIVE: To evaluate the results of arthroscopic treatment of large and extensive rotator cuff injuries (RCI) that involved the supra and infraspinatus muscles using the suture bridge (SB) technique. METHODS: Between July 2010 and November 2014, 37 patients with RCI who were treated with SB technique were evaluated. The study included all patients with a minimum follow-up of 12 months who underwent primary surgery of the shoulder. Twenty-four patients were male and 13 were female. The mean age was 60 years (45-75). The dominant side was affected in 32 cases. The most common cause of injury was trauma (18 cases). The mean preoperative motion was 123°, 58°, T11. Through magnetic resonance imaging, 36 fatty degenerations were classified according to Goutallier. Patients underwent rotator cuff repair with SB technique, which consists of using a medial row anchor with two Corkscrew® fibertape® or fiberwire® at the articular margin, associated with lateral fixation without stitch using PushLocks® or SwiveLocks®. RESULTS: The mean age was 60 years and mean fatty degeneration was 2.6. The mean range of motion (following the AAOS) in the postoperative evaluation was 148° of forward elevation, 55° in lateral rotation and medial rotation in T9. Using the criteria of the University of California at Los Angeles (UCLA), 35 (94%) patients had excellent and good results; one (2.7%), fair; and one (2.7%), poor. CONCLUSION: Arthroscopic repair of a large and extensive RCI using SB technique had good and excellent results in 94% of the patients.

OBJETIVO: Avaliar o resultado do tratamento artroscópico das lesões do manguito rotador (LMR) grandes e extensas dos tendões dos músculos supraespinal e infraespinal por meio da técnica suture bridge (SB). MÉTODOS: Entre 2010 e 2014, 37 pacientes com LMR submetidos a esse tratamento foram avaliados. Todos tinham seguimento mínimo pós-operatório de 12 meses e foram submetidos a cirurgia primária: 24 eram do sexo masculino e 13 do feminino. A média foi de 60 anos (45 a 75). O lado dominante foi acometido em 32 casos. Entre as lesões, 18 foram decorrentes de trauma. O movimento pré-operatório foi de 123°, 58°, T11. Por meio da ressonância magnética foi classificada a degeneração gordurosa de 36 pacientes de acordo com Goutallier. Os pacientes foram submetidos a reparo do manguito pela técnica de SB, com o uso de uma fileira medial de duas âncoras Corkscrew® com fibertape® ou fiberwire® na margem articular, associadas à fixação lateral sem nós com o uso de PushLocks® ou SwiveLocks®. RESULTADOS: A média de idade foi de 60 anos e a degeneração gordurosa média foi de 2,6, de acordo com Goutallier. A amplitude média dos movimentos (pela American Academy of Orthopaedic Surgeons [AAOS]) pós-operatória foi de 148°, 55°, T9. Pelos critérios da University of California at Los Angeles (UCLA), 35 (94%) pacientes tiveram resultados excelentes e bons; um (2,7%) paciente apresentou resultado regular e um (2,7%), ruim. CONCLUSÃO: O reparo artroscópico da LMR grande e extensa pela técnica de SB trouxe resultados bons e excelentes em 94% dos pacientes operados.

Evaluation of scapular dyskinesia in patients that underwent a latarjet procedure / Avaliação da discinesia escapular em pacientes submetidos à cirurgia de latarjet

ABSTRACT Objective: To quantitatively assess the scapular movement of patients who underwent Latarjet surgery and to identify if they present scapular dyskinesia (SD), as well as correlate with the clinic state and the elevation degree of the shoulder. Methods: A cross-sectional study was carried out at the Movement Analysis Laboratory (LAM), at the Institute of Physical Activity and Sport Sciences, that quantitatively evaluated, using spherical retroreflective markers, the scapular movements of the control group (10 volunteers) and 22 patients (23 operated shoulders) that had been submitted to Latarjet surgery, between 2011 and 2016, with at least one year postoperative. The results of the control group were used as a parameter of normality and compared to those of the operated group. Posterior inclination, superior rotation, and medial rotation of the scapula were evaluated at angles of 60°, 90°, and 120° of elevation, both in ascending and descending phases. The statistical analysis used was the multivariate variance (MANOVA), comparing the right and left sides of the control group and, subsequently, the control group with the postoperative group (p = 0.05 in all tests). Results: When comparing the mean of the results of the quantitative evaluation of the control group with the operated group, no statistically significant differences were found between the two groups and between the dominant and non-dominant sides of the control group. Conclusion: Latarjet surgery does not cause SD, although there are alterations in some plane of the scapular movements in the ascending and/or descending phase. Level of Evidence III, Retrospective Comparative Study.

RESUMO Objetivo: Avaliar, de forma quantitativa, o movimento escapular dos pacientes submetidos à cirurgia de Latarjet e identificar se apresentam discinesia escapular (DE). Além disso, correlacionar com a clínica e com o grau de elevação do ombro. Método: Estudo transversal realizado no Laboratório de Análise do Movimento (LAM), no Instituto de Ciências da Atividade Física e Esporte que avaliou de forma quantitativa, utilizando marcadores retro-refletivos esféricos, os movimentos escapulares do grupo controle (10 voluntários) e 22 pacientes (23 ombros operados), submetidos à cirurgia de Latarjet, entre os anos de 2011 e 2016, com pelo menos um ano de pós-operatório. Foram utilizados os resultados do grupo controle como parâmetro de normalidade e posteriormente comparados aos do grupo de pacientes operados. Avaliadas a inclinação posterior, rotação superior e rotação medial das escápulas nos ângulos de 60°, 90° e 120° de elevação, tanto na fase ascendente quanto na descendente. A análise estatística utilizada foi a multivariada da variância (MANOVA) comparando os lados direito e esquerdo do grupo controle e posteriormente o grupo controle com o grupo pós-operatório (p = 0,05 em todos os testes). Resultados: Ao compararmos a média dos resultados da avaliação quantitativa do grupo controle com o grupo dos operados, não foram evidenciadas diferenças estatisticamente significativas entre os dois grupos, assim como os lados dominante e o não dominante do grupo controle. Conclusão: A cirurgia de Latarjet não causa DE, apesar de haver alterações em algum plano dos movimentos escapulares na fase ascendente e/ou descendente. Nível de Evidência III, Estudo Retrospectivo Comparativo.

Evaluation of the Clinical Outcomes of the Arthroscopic Treatment of Rotator Cuff Tears Using the Modified Suture Bridge Technique / Avaliação dos resultados clínicos do tratamento artroscópico de lesões do manguito rotador pela técnica de suture bridge modificada

Abstract Objective To evaluate the postoperative clinical outcomes of the arthroscopic repair of rotator cuff injuries using a suture configuration we have developed based on a modification of the Suture Bridge (Arthrex, Naples, FL, United States). Methods A retrospective study with 28 male (41.2%) and 40 female (58.8%) subjects with a mean age of 60 years. All patients underwent rotator cuff repair with the modified Suture Bridge technique and follow-up for a minimum period of 18 months. The clinical assessment was performed using the University of California, Los Angeles (UCLA) Shoulder Score. Results The mean postoperative range of motion was of 134° (range: 110° to 140°) for elevation, 58° (range: 40° to 70°) for lateral rotation, and T10 (range: L4 to T7) for medial rotation. The mean increase was of 15° for elevation, 14° for lateral rotation, and 2 vertebral levels for medial rotation. The outcomes were excellent in 61 (83.6%) cases, good in 8 (10.9%), and regular in 4 cases (5.5%). Conclusion The modified Suture Bridge technique for the arthroscopic repair of rotator cuff injuries led to excellent or good postoperative clinical outcomes in most cases (69; 94.5%).

Resumo Objetivo Avaliar os resultados clínicos pós-operatórios do reparo artroscópico de lesões do manguito rotador com uma configuração de sutura desenvolvida por nós a partir de modificação do Suture Bridge (Arthrex, Naples, FL, Estados Unidos). Métodos Estudo retrospectivo de 28 pacientes do gênero masculino (41,2%) e 40 do gênero feminino (58,8%), com média de idade de 60 anos. Todos foram submetidos a reparo do manguito rotador com a técnica Suture Bridge modificada e acompanhados por um período mínimo de 18 meses. Os pacientes foram avaliados clinicamente através da Escala de Ombro da University of California, Los Angeles (UCLA). Resultados A amplitude de movimento média no pós-operatório foi elevação de 134 ° (variação: 110° a 140°), rotação lateral de 58° (variação: 40° a 70°), e rotação medial de T10 (variação: L4 a T7). O aumento médio de elevação foi de 15°, o de rotação lateral, de 14°, e o de rotação medial, de 2 níveis vertebrais. Os resultados foram considerados excelentes em 61 casos (83,6%) e bons, em 8 (10,9%). Em 4 casos (5,5%), o resultado foi regular. Conclusão Os resultados clínicos pós-operatórios do reparo artroscópico de lesões do manguito rotador, pela técnica Suture Bridge modificada, foram excelentes e bons na maioria dos casos (69; 94,5%).

Detection of Cutibacterium acnes in Tissue Samples from Primary Clean Shoulder Surgeries - Part I / Detecção de Cutibacterium acnes em amostras de tecidos de cirurgias limpas primárias do ombro - Parte I

Abstract Objective The present study aimed to identify bacterial agents in shoulder surgery specimens from patients with no history of previous shoulder infection or surgery. Methods Tendon, bursa, and bone specimens were collected during surgery, stored in sterile dry bottles, and sent to a hospital-associated laboratory for culture growth analysis in media for aerobic and anaerobic agents. Findings from 141 samples from 47 shoulders were analyzed. Results The cultures were negative in 46 cases (97.8%) and in 140 samples (99.2%). The culture was positive in a single patient, with growth of Staphylococcus hominis from one of three specimens collected. Conclusions The rates of bacterial growth were not consistent with the international literature, indicating the low effectiveness of laboratory methods used in Brazil.

Resumo Objetivo Identificar agentes bacterianos em amostras de cirurgias do ombro de pacientes sem histórico de infecção e de cirurgias prévias no ombro. Métodos Amostras de tendão, bursa e osso foram coletadas no intraoperatório, armazenadas em frascos estéreis a seco e enviadas para análise de crescimento de cultura em meios para agentes aeróbios e anaeróbios no laboratório credenciado ao hospital. Foram analisados os resultados de 141 amostras de 47 ombros. Resultados Obtivemos resultados de culturas negativas em 46 casos (97,8%) e em 140 amostras (99,2%). Apenas um paciente apresentou resultado positivo, com crescimento bacteriano do Staphylococcus hominis em uma das três amostras coletadas. Conclusões Não evidenciamos taxas de crescimento bacteriano condizentes com a literatura internacional, alertando para a baixa eficácia dos métodos laboratoriais utilizados no nosso país.

Results of Latissimus Dorsi Transfer using a Tendinous Allograft through a Single Deltopectoral Approach for Irreparable Posterosuperior Rotator Cuff Tears / Resultados da transferência do grande dorsal alongado com enxerto tendíneo homólogo por via delto-peitoral para lesões póstero-superiores irreparáveis do manguito rotador

Abstract Objective The primary aim of the present study is to evaluate the functional results of a modification to the latissimus dorsi (LD) transfer around the shoulder for irreparable posterosuperior rotator cuff tears. The secondary aim is to evaluate variables that might influence the outcomes. Surgical Technique Through a single deltopectoral approach, the LD tendon is detached, reinforced, and elongated with a tendinous allograft, transferred around the humerus, and fixed superolaterally to the greater tuberosity and anteriorly to the subscapularis. Methods Retrospective functional evaluation of 16 cases. The average follow-up was 21 months (12-47). The postoperative results (at last follow-up) were compared with the preoperative ones, as well as to other pre, intra, and postoperative variables. Results All (but one) patients were satisfied. Average University of California, Los Angeles (UCLA) score increased from 11.6 (8-16) to 27.3 (17-30) (p< 0.001). Improvements of shoulder pain, function, and strength achieved statistical significance (p< 0.001). Nonetheless, normal strength was never restored. Average active range of motion improved as follows: forward elevation, from 106° (60-140°) to 145° (130-160°) (p< 0.001); external rotation from 30° (0° to 60°) to 54° (40-70°) (p< 0.001); and internal rotation from L1 (gluteus to T7) to T10 (T12-T3) (p< 0.05). No complication has occurred. Preoperative pseudoparesis was reverted in all the six cases in which it was present. None of the variables analyzed influenced the outcomes, including pseudoparesis. Conclusions At early follow-up, this technique is safe and effective at recovering from pseudoparesis and at improving shoulder pain, function, and strength.

Resumo Objetivo O objetivo primário do presente trabalho é avaliar os resultados funcionais de uma modificação na transferência do grande dorsal no ombro para o tratamento de lesões póstero-superiores irreparáveis do manguito rotador. O objetivo secundário é avaliar as variáveis que podem influenciar os resultados. Técnica cirúrgica Por meio de uma única abordagem deltopeitoral, o tendão do músculo grande dorsal é desinserido reforçado e alongado com um enxerto tendíneo homólogo, transferido para o úmero e fixado em posição superolateral ao tubérculo maior e anterior ao músculo subescapular. Métodos Avaliação funcional retrospectiva de 16 casos. O período médio de acompanhamento foi de 21 meses (12-47 meses). Os resultados pós-operatórios (no último acompanhamento) foram comparados aos pré-operatórios, bem como a outras variáveis pré, intra e pós-operatórias. Resultados Todos os pacientes ficaram satisfeitos (exceto um). A pontuação média da University of California, Los Angeles (UCLA) aumentou de 11,6 (8-16) para 27,3 (17-30) (p< 0,001). A dor, a função e a força do ombro apresentaram melhora estatisticamente significativa (p< 0,001). A força, porém, não voltou ao valor normal. A amplitude de movimento ativa média apresentou as seguintes melhoras: elevação frontal, de 106° (60-140°) para 145° (130-160°) (p< 0,001); rotação externa, de 30° (0-60°) para 54° (40-70°) (p< 0,001); e rotação interna, de L1 (glúteo a T7) para T10 (T12-T3) (p< 0,05). Nenhuma complicação foi observada. A pseudoparesia pré-operatória foi revertida em todos os seis casos em que foi observada. Nenhuma das variáveis analisadas influenciou os desfechos, nem mesmo a pseudoparesia. Conclusões A curto prazo essa técnica é segura e eficaz na recuperação da pseudoparesia e na melhora da dor, da função e da força do ombro.

Infections after shoulder arthroplasty are correlated with higher anesthetic risk score: a case-control study in Brazil.

PURPOSES: Shoulder arthroplasty (SA) has been performed by many years for the treatment of several conditions, including osteoarthritis and proximal humeral fractures following trauma. Surgical site infection (SSI) following Shoulder arthroplasty remains a challenge, contributing to increased morbidity and costs. Identification of risk factors may help implementing adequate strategies to prevent infection. We aimed to identify pre- and intra-operative risk factors associated with deep infections after Shoulder arthroplasty. METHODS: An unmatched case-control study was conducted to describe the prevalence, clinical and microbiological findings, and to evaluate patient and surgical risk factors for prosthetic shoulder infection (PSI), among 158 patients who underwent SA due to any reason, at a tertiary public university institution. Risk factors for PSI was assessed by uni- and multivariate analyses using multiple logistic regression. RESULTS: 168 SA from 158 patients were analyzed, with an overall infection rate of 9.5% (16/168 cases). Subjects undergoing SA with American Society of Anesthesiologists (ASA) grade III or higher (odds ratio [OR]=5.30, 95% confidence interval [CI]=1.58-17.79, p<0.013) and presenting local hematoma after surgery (odds ratio [OR]=7.10, 95% confidence interval [CI]=1.09-46.09, p=0.04) had higher risk for PSI on univariate analysis. However, only ASA score grade III or higher remained significant on multivariate analysis (OR=4.74, 95% CI=1.33-16.92, p=0.016). Gram-positive cocci and Gram-negative bacilli were equally isolated in 50% of cases; however, the most commonly detected bacterium was Pseudomonas aeruginosa (18.7%). CONCLUSION: This study provides evidence suggesting that patient-related known factors such as higher ASA score predisposes to shoulder arthroplasty-associated infection. Furthermore, unusual pathogens associated with PSI were identified.

Current Options in Tendon Transfers for Irreparable Posterosuperior Rotator Cuff Tears / Opções atuais de transferências tendíneas para lesões posterossuperiores irreparáveis do manguito rotador

Abstract Massive irreparable posterosuperior rotator-cuff tears are debilitating lesions that usually require surgical treatment. Even though there is no consensus regarding the best surgical technique, tendinous transfers around the shoulder are the most commonly performed procedures. The latissimus dorsi tendon remains the most commonly used, but different modifications to the original technique have been shown to minimize complications and to improve functional results and satisfaction. Other techniques, such as the transfer of the lower trapezius tendon, are promising and should be considered, especially for patients with isolated loss of external rotation. The present paper is a literary review regarding tendon transfers for irreparable posterosuperior rotator-cuff tears.

Resumo As grandes lesões posterossuperiores irreparáveis do manguito rotador são debilitantes e, de modo geral, requerem tratamento cirúrgico. Embora não haja consenso sobre a melhor técnica cirúrgica, as transferências tendíneas no ombro são os procedimentos mais realizados. O tendão do grande dorsal continua a ser o mais utilizado, mas diferentes modificações na técnica original têm minimizado as complicações e melhorado os resultados funcionais e a satisfação com o procedimento. Outras técnicas, como a transferência do tendão do trapézio inferior, são promissoras e devem ser consideradas, principalmente em pacientes com perda isolada da rotação externa. Este artigo é uma revisão da literatura a respeito da transferência de tendões para tratamento das lesões posterossuperiores irreparáveis do manguito rotador.