Effect of tuberosity repair on functional outcome of reverse shoulder arthroplasty in proximal humerus fractures / 中华创伤杂志(英文版)

PURPOSE@#Unsatisfactory results of hemiarthroplasty in Neer's 3- and 4-part proximal humerus fractures in elderly, have led to the shift towards reverse shoulder arthroplasty (RSA). The objective of our study was to repair the tuberosities that are generally overlooked during RSA and observe its impact on the functional outcome and shoulder scores.@*METHODS@#We include elderly patients with acutely displaced or dislocated 3- or 4-part proximal humerus fractures from July 2013 to November 2019 who were treated with RSA along with tuberosity repair by non-absorbable sutures and bone grafting harvested from the humeral head. Open injuries and cases with neuro-muscular involvement of the deltoid muscle were excluded. According to the tuberosity healing on radiographs of the shoulder at 9th postoperative month, the patients were divided into 2 groups, as the group with successful tuberosity repair and the other with failed tuberosity repair. Statistical analysis of the functional outcome and shoulder scores between the 2 groups were done by independent t-test for normally distributed parameters and Mann-Whitney test for the parameters, where data was not normally distributed.@*RESULTS@#Of 41 patients, tuberosity healing was achieved in 28 (68.3%) and failed in 13 (31.7%) cases. Lysis of the tuberosity occurred in 5 patients, tuberosity displacement in 2, and nonunion in 2. Mean age was 70.4 years (range 65 - 79 years) and mean follow-up was 58.7 months (range 18 - 93 months). There were no major complications. Group with successful tuberosity repair showed improvement in mean active range of movements, like anterior elevation (165.1° ± 4.9° vs. 144.6° ± 9.4°, p < 0.000), lateral elevation (158.9° ± 7.2° vs. 138.4° ± 9.6°, p < 0.000), external rotation (30.5° ± 6.9° vs. 35.0° ± 6.3°, p = 0.367), internal rotation (33.7° ± 7.5° vs. 32.6° ± 6.9°, p = 0.671) and in mean shoulder scores including Constant score (70.7 ± 4.1 vs. 55.5 ± 5.7, p < 0.000), American shoulder and elbow surgeons score (90.3 ± 2.4 vs. 69.0 ± 5.7, p < 0.000), disability of arm shoulder and hand score (22.1 ± 2.3 vs. 37.6 ± 2.6, p < 0.000).@*CONCLUSION@#Successful repair and tuberosity healing around the RSA prosthesis is associated with statistically significant improvement in postoperative range of motion, strength and shoulder scores. Standardized repair technique and interposition of cancellous bone grafts, harvested from the humeral head can improve the rate of tuberosity healing.

Reverse Shoulder Arthroplasty: Evaluation of the Clinical and Functional Outcomes per Etiology / Artroplastia reversa de ombro: Avaliação dos resultados clínicos e funcionais de acordo com a etiologia

Abstract Objective The present study aimed to evaluate the clinical outcomes of reverse shoulder arthroplasty to treat several conditions. Methods Retrospective, longitudinal study analyzing the Constant and University of California at Los Angeles (UCLA) scores and range of motion of patients undergoing reverse shoulder arthroplasty. Results In total, 28 patients were analyzed, with a mean age of 75.6 years old. The mean duration of follow-up was 45 months. Overall, there was a significant variation (p< 0.0001) between the preoperative (10.2 points) and the postoperative UCLA scores (29.6 points), corresponding to a relative increase of approximately 200%. In addition, the mean Constant score was 67.8, and the complication rate was 17.8%. As for functional outcomes per etiology, fracture sequelae cases presented the best mean elevation (165°), Constant score (79 points), postoperative UCLA score (32.5 points), and absolute delta UCLA score increase (22 points), but with no statistical significance. However, cases operated for fracture sequelae showed significantly higher elevation (p= 0.027) and Constant score (p= 0.047) compared to rotator cuff arthropathy cases. In addition, the lowest mean postoperative Constant and UCLA scores were observed for the following etiologies: primary arthrosis, acute fracture, and arthroplasty revision. Conclusion Reverse shoulder arthroplasty showed satisfactory functional outcomes and may be a treatment option not only for rotator cuff arthropathy but for several other conditions.

Resumo Objetivo Avaliar os resultados clínicos da artroplastia reversa do ombro no tratamento de suas diversas indicações. Métodos Estudo longitudinal retrospectivo que analisou os resultados dos escores Constant, UCLA e amplitudes de movimentos dos pacientes submetidos à artroplastia reversa do ombro. Resultados Foram analisados 28 pacientes, a média de idade foi de 75.6 anos, com seguimento médio de 45 meses. No geral, obtivemos uma variação significativa (p< 0,0001) entre o escore UCLA pré-operatório (10,2 pontos) e o escore UCLA pós-operatório (29,6 pontos), o que corresponde a um aumento relativo de aproximadamente 200%. Além disso, obtivemos pontuação média do escore Constant de 67,8 e uma taxa de complicações de 17,8%. Quanto aos resultados funcionais segundo as indicações, os casos de sequela de fratura apresentaram as melhores médias de elevação (165°), escore Constant (79 pontos), escore UCLA pós-operatório (32,5 pontos) e aumento absoluto na variação do escore UCLA (22 pontos), sem significância estatística. Porém, identificou-se que os casos operados por sequela de fratura apresentaram elevação (p= 0,027) e pontuação no escore Constant (p= 0,047) significativamente maiores em relação aos casos de artropatia do manguito rotador. Além disso, observamos que as menores médias dos escores Constant e UCLA pós-operatórios foram obtidos nas seguintes etiologias: artrose primária, fratura aguda e revisão de artroplastia. Conclusão A artroplastia reversa de ombro apresentou resultados funcionais satisfatórios, podendo ser uma opção de tratamento não somente nos casos de artropatia do manguito rotador, mas também em várias outras patologias.

Correlation Between Implant Positioning and Functional Outcomes in Partial Shoulder Resurfacing / Correlação entre posicionamento do implante das artroplastias parciais de recobrimento do ombro e os resultados funcionais

Abstract Objective The present study aimed to correlate functional outcomes and implant positioning in a case series of partial shoulder resurfacing arthroplasties. Methods A total of 25 patients were assessed for range of motion, functional outcome per the University of California at Los Angeles (UCLA) score and radiographic findings. Preand postoperative data were compared. In addition, patients were grouped according to the cervical-diaphyseal angle (CDA) determined by an anteroposterior radiography and to the retroversion angle (RVA) determined by an axillary radiography. A CDA from 130° to 140° and a RVA from 20° to 40° consisted in ideal positioning (anatomical standard). Data were analyzed using the Wilcoxon signed-rank test, analysis of variance (ANOVA) followed by the Kruskal-Wallis test or the Mann-Whitney test as appropriate. Results The mean follow-up time was 48.3 months (12 to 67 months). The postoperative functional score (31.5) was higher than the preoperative score (15.5) (p < 0.001). In 6 patients, the implant was in anatomical positioning, while implant positioning was considered "nonstandard" in 19 subjects. Seven patients had a CDA < 130°, and 14 patients had a CDA ranging from 130° to 140°; in addition, the CDA was > 140° in 4 subjects. The RVA was up to 20° in 15 patients and ranged from 20° to 40° in 10 subjects. Using these criteria to group patients, the postoperative clinical-functional parameters were not statistically different from the preoperative findings (p > 0.05). Conclusion Partial shoulder resurfacing results in significant postoperative functional recovery in patients with degenerative joint diseases. However, implant positioning assessed by CDA and RVA does not correlate with clinical-functional outcomes and, therefore, it is an inaccurate indicator of surgical success. Level of Evidence IV; Case Series.

Resumo Objetivo O objetivo do presente estudo é correlacionar os resultados funcionais de uma série de casos de artroplastias parciais de recobrimento do ombro com o posicionamento do implante. Métodos Um total de 25 pacientes foram avaliados em relação à amplitude de movimentos, à avaliação funcional pelo escore de Universidade da Califórnia Los Angeles (UCLA) e por análise radiográfica. Os dados pré- e pós-operatórios foram comparados. Adicionalmente, os pacientes foram agrupados quanto ao ângulo cérvico-diafisário (ACD) avaliado na radiografia em anteroposterior e quanto ao ângulo de retroversão (ARV) avaliado na radiografia em posição axilar. Foi considerado como posicionamento ideal (padrão anatômico) um ACD entre 130° e 140° e um ARV entre 20° e 40°. Os dados foram analisados pelo teste pareado de Wilcoxon, pela análise de variância (ANOVA, na sigla em inglês) seguida pelo pós-teste de Kruskal-Wallis ou pelo teste de Mann-Whitney, quando apropriado. Resultados O seguimento médio foi de 48,3 meses (12 a 67 meses). A avaliação funcional pós-operatória (31,5) foi melhor do que a pré-operatória (15,5) (p < 0,001). Seis pacientes apresentaram posicionamento anatômico do implante, enquanto 19 pacientes foram considerados "fora do padrão." Sete pacientes apresentaram um ACD < 130°, quatorze apresentaram um ACD entre 130° e 140°, e quatro apresentaram um ACD >140°. Quinze pacientes apresentaram um ARV ≤ 20°, e 10 entre 20° e 40°. Utilizando esses critérios para agrupar os pacientes, a comparação dos parâmetros da avaliação clínico-funcional pós-operatória não foi estatisticamente diferente (p > 0,05). Conclusão A artroplastia parcial de recobrimento do ombro oferece significativa recuperação funcional pós-operatória em pacientes com doenças degenerativas articulares. Entretanto, o posicionamento do implante avaliado pelos ACD e ARV não se correlaciona com o resultado clínico-funcional, sendo, portanto, uma medida imprecisa de sucesso da cirurgia. Nível de Evidência IV, Série de Casos.

Shoulder Arthroplasty: Tenotomy of the Subscapularis Tendon versus the Lesser Tuberosity Osteotomy / Artroplastia de ombro: tenotomia do subescapular versus osteotomia do tubérculo menor

Abstract Objective To evaluate and compare subscapular muscle function among patients undergoing subscapular tenotomy (Group A) and lesser tuberosity osteotomy (Group B), in patients treated with total and partial anatomic shoulder arthroplasty for primary osteoarthrosis. Methods Retrospective study of patients with primary glenohumeral osteoarthrosis surgically undergoing total or partial anatomic shoulder prosthesis implant, evaluated by clinical examination, imaging exams, analogue pain scale and Constant and Murley functional score. A total of 28 patients were evaluated, totalizing a sample of 32 operated shoulders. The minimum follow-up was of 12 months (mean 47.45 months). Results Among patients submitted to subscapularis tendon tenotomy, 10 had an ultrasound with total rupture of its thickness (56%). All of the patients of the group B showed lesser tuberosity healing. There was no difference between groups comparing strength evaluated by Belly press and Bear hug tests as well as clinical outcome, through the Constant and Murley score. Conclusions We did not find differences between Groups A and B evidenciated by comparing strength in the Lift-off test, in the Belly press and Bear hug tests and through he Constant and Murley score.

Resumo Objetivo Avaliar e comparar a função do músculo subescapular entre os grupos submetidos a tenotomia do subescapular (Grupo A) e osteotomia do tubérculo menor (Grupo B), em pacientes tratados por artroplastia anatômica total e parcial de ombros apresentando osteoartrose primária. Métodos Estudo retrospectivo de pacientes portadores de osteoartrose primária glenoumeral tratados cirurgicamente com prótese anatômica total ou parcial de ombro, avaliados por exame clínico, exames de imagens, escala visual analógica de dor e escore funcional de Constant e Murley. Foram avaliados 28 pacientes, totalizando uma amostra de 32 ombros operados. O seguimento mínimo foi de 12 meses (média 47,45 meses). Resultados Nos pacientes submetidos à tenotomia do tendão subescapular, dez obtiveram resultado ultrassonográfico com ruptura de sua espessura total (56%). A consolidação ocorreu em todos pacientes submetidos a osteotomia do tubérculo menor. Não houve diferença entre os grupos na comparação do teste Lift Off, da força nos testes Belly Press e Bear hug, e no escore de Constant e Murley. Conclusões Não encontramos diferença entre os grupos A e B na comparação do teste Lift Off, da força nos testes Belly Press e Bear hug, e no escore de Constant e Murley.

Artroplastia de resección de hombro como salvamento para infecciones recalcitrantes: estado actual de la técnica a propósito de dos casos / Shoulder resection arthroplasty as a salvage procedure for recalcitrant infections: current state of the art regarding two cases

INTRODUCCIÓN Y OBJETIVOS La artroplastia de resección de hombro (ARH) se presenta como una técnica obsoleta y una opción no válida en la actualidad, debido a la evolución de las técnicas quirúrgicas y de los implantes. Pero, como consecuencia del aumento exponencial del uso de artroplastias de hombro, están aumentando en paralelo el número de fracasos e infecciones, con necesidad de revisión y rescate. Es por ello que, en determinadas situaciones y pacientes, esa técnica vuelve a ser una opción necesaria como salvataje, aunque tiene un alto coste funcional. El objetivo de nuestro trabajo, es presentar dos casos de artroplastia de resección de hombro como una opción válida de tratamiento en la actualidad y la revisión de la literatura. CASOS Se presentan dos casos de ARH como tratamiento de rescate, en un caso de osteomielitis crónica de cabeza humeral y un caso de infección de hemiartroplastia de hombro. Ambos pacientes se encontraban sin dolor y libres de infección con un seguimiento de más de 30 meses. En un caso la funcionalidad fue limitada con un Constant de 45 pero el otro caso la funcionalidad fue aceptable con un Constant de 67. CONCLUSIONES La ARH sigue siendo una técnica útil tras el fracaso de procedimientos de revisión, para resolver infecciones protésicas recalcitrantes u osteomielitis. Los resultados funcionales son pobres, por lo que debe reservarse para pacientes con baja demanda funcional y como salvataje, tras agotar otras opciones.

INTRODUCTION AND OBJECTIVES shoulder resection arthroplasty (SRA) is currently considered as an outdated technique, due to the advances in surgical techniques and new prosthesis designs. However, with the exponential increase in the use of shoulder arthroplasties, the number of failures and infections is equally increasing, as well as the revisions and salvage procedures. In certain situations, SRA is therefore a necessary solution, although it grossly compromise shoulder function. The aim of our study is to present two cases who underwent SRA as a valid treatment option nowadays and a literature review. CASES We present two cases of SRA as salvatage treatment. First case in a chronic humeral head osteomyelitis and second in a partial shoulder prosthesis recalcitrant infection. Both patients had complete pain relief and infection was solved with a follow-up over 30 months. In the first case, postoperative shoulder function was limited with a Constant­Murley score of 45. In the second case, function was fairly good with a Constant of 67. CONCLUSIONS SRA remains a valuable technique after the failure of revision procedures, as a salvage for recalcitrant prosthetic infections or osteomyelitis. The functional results are poor, so it should be reserved for patients with low functional demand and as salvatage procedure, after assess other options.

Clinical effect of artificial semi-shoulder joint replacement in treatment of humeral head necrosis / 局解手术学杂志

Objective To explore the clinical effect of the semi-shoulder arthroplasty in the treatment of humeral head necrosis.Methods Twenty patients with head necrosis of the humerus in first hospital affiliated to army medical university from February 2008 to January2018 were collected, including 8 cases of males, 12 cases of females, 7 cases of left shoulder and 13 cases of right shoulder.The patients were aged from 45 to 83 years old, mean (67.40±5.06) years old.All patients were followed up for at least 6 months, the anterior flexion angle, abduction angle, external rotation angle and internal rotation angle of shoulder joint were measured, the function of shoulder joint was evaluated by ASES, UCLA, SST, and VAS, and the imaging examination was conducted.Results All patients were followed up for 6 to 37 months after surgery, with average (18.50±5.31) months, 2 patients presented mild pain during shoulder joint activity, 1 patient presented brachial plexus nerve damage, but returned to normal 3 months after surgery.No complication happened.X-ray reexamination showed good position and angle of the prosthesis during the follow-up period.The preoperative anteflexion angle, angle of outreach, swing angle and swing angle of the shoulder joint were respectively (55.24±8.21) °, (42.58±6.21) °, (12.95±2.74) °, (17.79±3.65) °, the last follow-up were respectively (120.76±13.15) °, (103.08±10.54) °, (33.51±3.14) °, (50.10±7.25) °, the differences were significant (P＜0.01);The preoperative ASES score, UCLA score, SST score, VAS score of the shoulder joint were respectively (38.24±5.21), (12.58±3.93), (3.25±1.42), (6.79±1.65), the last follow-up were respectively (75.74±9.69), (33.08±4.5), (9.11±1.85), (1.45±0.24), the differences were significant (P＜0.01).Conclusion Artificial semi-shoulder replacement for the treatment of humeral head necrosis can significantly improve the range of limb function, relieve the pain symptoms of patients and improve patients'quality of life, which has excellent and good shoulder function rate and fewer complications.

Humeral Head And Glenoid Dimensions In The Indian Population: A Cadaveric Study

Background: Shoulder prosthesis should accurately mimic the proximal shoulder and glenoid anatomy to recreatethe shoulder biomechanics. There may be a mismatch in the sizes of the Indian native bone and the currentlyavailable western shoulder prosthesis, since the bony morphology of Indians may be different from that of thewestern counterpart.Purpose: To measure the average humeral head diameter and glenoid length and width, so that a proper implantselection may be done based on the knowledge of average Indian bony morphology.Methods: Twenty shoulders in ten fresh cadavers were dissected to expose the humeral head and glenoidarticular surface. The humeral head diameter was measured with the help of a digital vernier caliper in twoplanes: Supero-inferior diameter (D1) and antero-posterior diameter (D2). The glenoid length (l) and width (w)were measured with the help of a vernier caliper.Results: The average humeral head diameter (D1) ± S.D. in the Supero-inferior plane was 45±3.4 mm (range 40-50.6mm) and antero-posterior (D2) plane was 42.7±2.2 mm (range 40-46mm) with a mean difference of 2.2 mm.The average length of the glenoid (l) was 35.4±1.3 mm (range 32-37mm) and width of the glenoid (w) was 25.3±2.1mm (range 21-28mm). The shape of the humeral head was more ellipsoidal at diameters above 45 mm.Conclusion. We can conclude that the humeral head diameters and glenoid length and width in Indian populationare smaller than the western counterparts. The ellipsoidal shape of the humeral heads becomes more marked atdiameters above 45mm.

Factores determinantes en la indicación de la prótesis invertida de hombro / Facteurs déterminant l'indication de prothèse d'épaule inversée / Determining Factors in Inverted Shoulder Prosthesis Indication

Objetivo: Desarrollar criterios para determinar las indicaciones apropiadas de la prótesis invertida de hombro en artropatías por lesión del manguito rotador y las variables determinantes de este proceso. Método: Se utilizó un panel de expertos mediante metodología RAND/UCLA con 9 expertos en Traumatología, 2 en Rehabilitación y 1 en Reumatología, que evaluaron 192 casos hipotéticos. Cada experto puntuó mediante una escala del 1 (extremadamente inadecuado) al 9 (extremadamente apropiado). Resultados: 22 casos hipotéticos fueron considerados adecuados. El dolor, limitación funcional, necesidad funcional, defecto glenoideo, edad, artrosis y posibilidad de reparación del manguito rotador son variables determinantes para indicar la implantación de una prótesis invertida de hombro. Conclusiones: El método RAND/UCLA es útil para el estudio de las indicaciones de procedimientos como la prótesis invertida de hombro, y proporciona una lista de las indicaciones adecuadas. Las variables requieren ser validadas mediante estudios prospectivos o revisión de historias clínicas(AU)

Objective: Develop criteria to determine the appropriate indications of inverted shoulder prosthesis in arthropathies due to rotator cuff injury and the variables that determine this process. Method: A panel of experts assessed 192 hypothetical cases using RAND/UCLA methodology. Nine Traumatology experts, two Rehabilitation experts and one Rheumatology expert comprised this panel. Each expert scored on a scale from 1 (extremely unsuitable) to 9 (extremely appropriate). Results: 22 hypothetical cases were considered adequate. Pain, functional limitation, functional need, glenoid defect, age, osteoarthritis and possibility of rotator cuff repair are determining as variables to indicate the implantation of an inverted shoulder prosthesis. Conclusions: The RAND/UCLA method is useful for the study of procedure indications such as the inverted shoulder prosthesis, and it provides a list of suitable indications. Prospective studies or medical record reviews should validate these variables(AU)

Objectif: Proposer les critères définissant l'indication appropriée de prothèse d'épaule inversée dans les arthropathies pour lésion de la coiffe des rotateurs, et les variables déterminant ce processus. Méthodes: Un panel d'experts, compris par 9 traumatologues, 2 kinésithérapeutes et 1 rhumatologue, a été utilisé pour évaluer 192 cas hypothétiques par la méthode RAND/UCLA. Chaque expert a fait son évaluation sur une échelle de 1 (extrêmement inapproprié) à 9 (extrêmement approprié). Résultats: Vingt-deux cas hypothétiques ont été considérés comme appropriés. Des variables telles que la douleur, la limitation fonctionnelle, la nécessité fonctionnelle, le défaut glénoïdien, l'âge, l'arthrose et la possibilité de correction de la coiffe des rotateurs, ont déterminé l'indication de prothèse d'épaule inversée. Conclusions: La méthode RAND-UCLA est utile pour l'étude des indications de procédés, tels que la prothèse d'épaule inversée, et procure une liste des indications appropriées. Il faut valider les variables avec des études prospectives ou une révision des dossiers médicaux(AU)

Delta Ⅲ prosthesis for acute fractures in elderly population with a 1-to 14-year follow-up / 中国组织工程研究

The Delta Ⅲ semi-constrained reverse-ball-and-socket prosthesis works only with an intact deltoid muscle.In this study,we aimed to evaluate its effects on a consecutive series of acute complex fractures of the proximal humerus in elderly patients.From 1993 to 2007,forty-one Delta Ⅲreverse shoulder prostheses were implanted through an anterolateral approach for thirty-one three-part and four-part (Neer) fractures and ten fracture-dislocations.There were 3 men and 38 women with a mean age of 75 years.The Constant score and anterioposterior and lateral view X-rays were used for clinical and radiologic analyses,respectively.Nine patients died and two were navailable for follow-up,and 30 cases were enrolled for final analysis.At a mean follow-up of 6.5 years,the Constant scores were 59 points for the prosthesis side versus 80 for the contra-lateral side.The results were good in respect to pain (14.2),activity (14.4),strength (14.2),anterior elevation (7.5),abduction (6.5),but very poor for external (1) and internal (2.2) rotations.Radiographic results showed one case of aseptic glenoid loosening (at 12-year follow-up),seventeen cases of inferior scapular notching,fourteen of inferior spurs,four of medial and two of lateral proximal humeral bone losses,two of medial humeral lucent lines and one of septic humeral loosening.For complex acute fractures of the proximal humerus in the elderly,the Delta Ⅲ prosthesis is a possible alternative with reliable functional outcomes in cases in which traditional fixation methods may fail.Clinically,rotation remains low; radiographically,scapular notching and proximal humeral lysis are evident.

Clinical results of shoulder arthroplasty with the UNIVERS 3-D prosthesis in rheumatoid arthritis / 第三军医大学学报

Objective To evaluate the clinical results of arthroplasty with the UNIVERS 3 D prosthesis in shoulder rheumatoid arthritis (RA). Methods Six cases of shoulder RA underwent the arthroplasty with the UNIVERS 3 D prosthesis. Five cases were strictly reviewed by Constant score and normalized Constant score after operation with an average follow up of 26 months, ranging from 12 to 45 months. Five cases were reviewed by the radiological analysis on preoperative and postoperative X ray including three AP views, scapular view, and axillary view. The radiographic forms were classified by two different criteria according to Levigne. Results The postoperative Constant score (mean, 55.06) and normalized Constant score (mean, 72.2%) were improved more than one time in all cases except one. Complication of anterior superior subluxation occurred in glenohumeral joint of one case and no surgical treatment performed. The radiographic forms were classified by Levigne on humeral head wear (including 2 cases of microgeodes, 1 case for notch in the greater tuberosity, and 3 cases for spherical form loss) and on the sphericity and upward migration of the humeral head (1 case for ascending form, 1 case for centered form, and 4 cases for destructive form) according to the clinical results. Conclusion The arthroplasty with the UNIVERS 3 D prosthesis results with excellent clinical function results in shoulder RA without any radiolucent line and with very low complication. Radiological classification on the sphericity and upward migration of the humeral head, and humeral head wear may be useful element in operation choice and its prognosis.