Kinematics Study of Glenohumeral Joint at Different Arm Elevation Planes in Normal Chinese / 医用生物力学

Objective To investigate relative translations of the glenohumeral joint during abduction, scaption and forward flexion in normal Chinese, so as to provide references for diagnosis, treatment and follow-up of glenohumeral joint instability and subacromial impingement syndrome.Methods The biplanar fluoroscopy system combined with model-image registration technique were used to measure the humeral translation relative to the scapular in 13 healthy volunteers during abduction, scaption and forward flexion.Results The anterior-inferior glenohumeral translation during abduction, scaption and forward flexion was (4.0±1.3), (4.1±1.5),(4.8±1.9) mm, respectively. The superior-inferior glenohumeral translation was (3.0±1.0), (3.1±1.1), (3.3±1.5) mm, respectively. During the whole motion, there was a significant difference in superior-inferior translation at different arm elevation angles, while other significant differences were not found.Conclusions For normal Chinese, the humeral head was positioned posteriorly and superiorly on the glenoid. During forward flexion, the anterior-inferior and superior-inferior glenohumeral translation was the maxium. Therefore, in the process of clinical diagnosis, treatment and follow-up, patients performing the forward flexion may obtain a better evaluation effect.

Progress on arthroscopic surgery for recurrent anterior shoulder dislocation / 中国骨伤

The surgical treatment of recurrent anterior shoulder dislocation is a difficult problem in the field of sports injury medicine. The main reason focus on dynamic and osseous constraints of shoulder joint could not recover well. At present, arthroscopic surgery is used at home and abroad, and could receive statisfied postoperative effect, but the choice of specific surgical methods is still controversial. According to presence and size of glenoid and humeral skull defects, different treatments should be selected in clinic. The author recommends that no articular glenoid defect or glenoid defect 40% or Bristow-Latarjet if the surgical repair fails, bone grafting is used. In addition, if (humeral avulsion of glenohumeral ligaments, HAGL) injury existed, HAGL injury repair should be used. In addition to considering the important factor of bone defects, it is necessary to combine patient's age, exercise level and surgeon's technique to comprehensively select the bestsurgical method.

Ultrasound-Guided Shoulder Injections / 대한정형외과학회잡지

The shoulder pain is one of the most common problems to orthopaedic surgeons in clinic. Among therapeutic modality used to manage this pain, joint and periarticular injection, as well as suprascapular nerve block, show good clinical outcome. Ultrasound guidance is a safe technique, increasing the safety and accuracy of the procedure and reducing complications. An accurate understanding of the surface anatomy is important in performing the ultrasound-guided shoulder injections. This article aims to describe the surface anatomy and sono anatomy of both the shoulder and the surrounding structures and also summarize different infiltration techniques and peripheral nerve blocks.

Modified Bristow-Latarjet procedure for treatment of recurrent traumatic anterior glenohumeral dislocation / Operação de Bristow-Latarjet modificada no tratamento na luxação glenoumeral anterior traumática recidivante

ABSTRACT Objective: Retrospective case-control study of authors experience in the modified Bristow-Latarjet procedure for treatment of recurrent traumatic anterior glenohumeral dislocation with glenoid bone injury. Methods: Sample with 102 recurrent glenohumeral dislocation cases submitted to modified Bristow-Latarjet procedure. Indications included situations of recurrent traumatic anterior glenohumeral instability with more than two dislocation episodes and with glenoid bone attritional or fragmentary injuries, without possibility of reconstruction. Mean follow-up time was 5.33 ± 2.74 years (minimum 1; range 1-13). Results: The mean Walch-Duplay Score at the last evaluation was 91.23 ± 11.46 (range 15-100). The functional score of patients with glenoid bone loss greater than 20% did not show a significant difference in comparison with patients with glenoid bone loss lower than 20% (90 vs. 92, respectively). The functional score also did not show a significant difference between sports practice categories and between recreational and competitive practice, being excellent (greater than 90) in every category. There were no dislocation recurrences and the only complications were a case of persistent instability and a screw revision. Mild glenohumeral osteoarthrosis imaging signs were identified in 7.84% of the patients; however, their functional scores were not significantly different in comparison to other patients. Conclusion: The modified Bristow-Latarjet procedure is a very effective procedure with few complications in the medium-term, showing very satisfactory functional outcomes in the treatment of recurrent traumatic anterior glenohumeral dislocation associated with glenoid bone injury.

RESUMO Objetivo: Estudo retrospectivo sobre a experiência dos autores na operação de Bristow-Latarjet modificada como tratamento da luxação glenoumeral anterior traumática recidivante com lesão óssea glenoidea. Métodos: Amostra com 102 casos de luxações glenoumerais submetidos à cirurgia de Bristow-Latarjet modificada. As indicações foram situações de instabilidade glenoumeral anterior traumática recidivante com número de episódios de luxações superior a dois e com lesão óssea da glenoide erosiva ou fragmentária, sem possibilidade de reconstrução. O tempo de seguimento médio foi de 5,33 ± 2,74 anos (mínimo 1; intervalo 1-13). Resultados: O escore de Walch-Duplay médio na última avaliação foi de 91,23 ± 11,46 (intervalo 15-100). O escore funcional dos pacientes com lesão óssea da glenoide superior a 20% não demonstrou diferença significativa em comparação com aqueles com lesão óssea da glenoide inferior a 20% (90 vs. 92, respetivamente). O escore funcional também não demonstrou diferença significativa entre as categorias de prática desportiva e entre a prática recreativa ou de competição, foi excelente (superior a 90) em todas as categorias. Não se verificou qualquer recidiva das luxações e as únicas complicações observadas foram um caso de instabilidade persistente e uma revisão de um parafuso. Foram identificados sinais imagiológicos de osteoartrose glenoumeral ligeira em 7,84% dos pacientes; no entanto, o escore funcional desses pacientes não demonstrou diferença significativa em comparação com o dos demais. Conclusão: A cirurgia de Bristow-Latarjet modificada descrita é uma intervenção muito eficaz e com reduzidas complicações em médio prazo, apresenta resultados funcionais muito satisfatórios no tratamento da instabilidade glenoumeral anterior recidivante associada a lesões ósseas da glenoide.

Morphometry And Morphology Of Glenoid Cavity Of Scapula

Introduction: The Glenoid cavity is regarded as the head of the scapula. The morphology of glenoid cavity ishighly variable. It articulates with the head of the humerus at the glenohumeral joint. Shape and dimensions ofthe glenoid cavity are important in the design and fitting of glenoid components for total shoulder arthroplasty.An understanding of variations in normal anatomy of the glenoid is essential while evaluating pathologicalconditions like osseous bankart lesions and osteochondral defects. The aim of the present study was to obtainthe anthropometric data of the glenoid cavity of the scapula and to study the various shapes of the glenoid cavitywhich will help in management of shoulder pathology.Materials and Methods: This study was done on 74 dry, unpaired adult human scapulae (36 right side and 38 leftside )of unknown sex belonging to the saurashtra population. Maximum superior-inferior diameter and Maximumanterior-posterior diameter of the glenoid cavity were measured and. The shape of the glenoid cavity wasclassified as inverted comma shaped, pear shaped and oval shaped depending upon the presence or absence ofa notch on the glenoid rim.Results: The average SI diameter on right and the left sides were 38.49 ± 3.17mm and 38.06 ± 3.34mm respectively.The average AP-1 diameter of the right glenoid were 24.76±2.49mm and that of the left was 24.23 ± 2.14mm.Themean AP-2 diameter of the right glenoid was 18.83±2.19 mm and that of the left was 17.97±2.08.Conclusion: These findings suggest that the difference in size of the glenoid cavity in Gujarati population mayhave to be taken into consideration while deciding the size of the glenoid component in shoulder arthroplasty inthis population.

Management of the First-time Traumatic Anterior Shoulder Dislocation

Traumatic anterior dislocation of the shoulder is one of the most common directions of instability following a traumatic event. Although the incidence of shoulder dislocation is similar between young and elderly patients, most studies have traditionally focused on young patients due to relatively high rates of recurrent dislocations in this population. However, shoulder dislocations in older patients also require careful evaluation and treatment selection because they can lead to persistent pain and disability due to rotator cuff tears and nerve injuries. This article provides an overview of the nature and pathology of acute primary anterior shoulder dislocation, widely accepted management modalities, and differences in treatment for young and elderly patients.

The effect of intra-articular levobupivacaine on shoulder cartilage at different doses - experimental study / O efeito de levobupivacaína intra-articular na cartilagem do ombro em doses diferentes-estudo experimental

Abstract Background and objectives: In this study it was aimed to examine the histological and morphometric effects on cartilage structure of intra-articular application of levobupivacaine to the shoulder joint. Methods: In twenty New Zealand adult male rabbits, 35 shoulders were used for the study and prepared in 5 groups of 7. These groups were defined as Groups L1, L2, L3 and L4 which were right shoulders administered with 0.25% and 0.5% levobupivacaine, Group C which were left shoulders as the control group and Groups S1 and S2 which were left shoulders administered with 0.9% saline. On the 2nd and 15th days the animals were killed, the glenohumeral joints were evaluated macroscopically then cartilage samples were taken. These samples were evaluated with Mankin score, and histomorphometrically by measuring the thickness of the cartilage between the superficial cartilage layer and the tidemark and the thickness of calcified cartilage between the tidemark and the subchondral bone. Results: Macroscopically, on the 15th day the joint fluid was seen to have reduced in all the groups. After microscopic evaluation, the highest Mankin score (mean: 3.14 ± 2.1/14) was in the L4 group (15th day 0.5% levobupivacaine) and was found to be statistically significant (p < 0.05). No statistically significant difference was determined between the other groups. Conclusions: Histologically, as the highest Mankin score was in the L4 group, this indicates that in a single intra-articular injection of levobupivacaine a low concentration should be selected. Level of evidence: Level 5, animal study.

Resumo Justificativa e objetivo: Neste estudo o objetivo foi examinar os efeitos histológicos e morfométricos sobre a estrutura da cartilagem da aplicação intra-articular de levobupivacaína em articulação do ombro. Métodos: Trinta e cinco ombros de 20 coelhos New Zealand, machos e adultos, foram usados para o estudo e divididos em cinco grupos de sete. Os grupos foram definidos como L1, L2, L3 e L4, consistiram em ombros direitos nos quais levobupivacaína a 0,25% e 0,5% foi administrada; o Grupo C, que consistiu em ombros esquerdos, foi o grupo controle; os grupos S1 e S2, que consistiram em ombros esquerdos, receberam solução salina a 0,9%. Os animais foram sacrificados no segundo e no 15º dia; as articulações glenoumerais foram avaliadas macroscopicamente e, em seguida, amostras de cartilagem foram coletadas. As amostras foram avaliadas com o escore de Mankin e histomorfometricamente. Mediu-se a espessura da cartilagem entre a camada superficial e a "linha de maré" (tidemark) e a espessura da cartilagem calcificada entre a tidemark e o osso subcondral. Resultados: Macroscopicamente, observou-se no 15º dia que o líquido articular havia reduzido em todos os grupos. Após a avaliação microscópica, o maior escore de Mankin (média: 3,14 ± 2,1/14) foi observado no grupo L4 (15º dia levobupivacaína a 0,5%), considerado estatisticamente significativo (p < 0,05). Nenhuma diferença estatisticamente significativa foi determinada entre os outros grupos. Conclusões: Histologicamente, como o maior escore de Mankin foi observado no Grupo L4, isso indica que em uma única injeção intra-articular de levobupivacaína uma concentração baixa deve ser selecionada. Nível de evidência: Nível 5, estudo em animais.

Application of arthroscopic repair without traction for non-osseous Bankart injury in shoulder / 局解手术学杂志

Objective To explore the clinical effect of arthroscopic repair without traction for non-osseous Bankart injury.Methods From January 2009 to January 2015,the clinical data of 182 cases underwent arthroscopic Bankart repair for anterior shoulder instability in our hospital were analyzed retrospectively.They were aged from 18 to 39 years old,mean age was(26.5 ± 9.3) years.The course of disease was from 1 to 10 years,mean duration was(3.2 ±2.6) years.Recurrent dislocation was 6 to 62 times,with average of (24.2 ± 17.3) times.All cases were performed arthroscopic repair without traction.Rowes scores and UCLA scores were used for evaluation.Results All of 182 cases were followed up from 6 to 18 months,an average of (12.5 ± 6.7) months.Of the 182 patients,12 cases with postoperative limited 20°external rotation could not attend confrontational training and the other 170 cases had no adverse effect.The average loss of shoulder joint extorsion activity angle were (10.5 ± 4.1) °.Postoperative UCLA score (89 ± 3.5) was more than preoperative (25 ± 6.2),the differences were significant (P ＜ 0.05).Postoperative Rowes score (28.7 ± 2.2) were more than preoperative (7.3 ± 1.6),the differences were significant (P ＜ 0.05).Conclusion Curative effect of arthroscopic repair without traction for non-osseous Bankart injury caused by training is satifactory,which can provide brachial plexus,blood vessel and other tissues during surgery from traction,and be helpful to the popularization and application in basic-level hospitals.

A Randomized Comparative Study of Blind versus Ultrasound Guided Glenohumeral Joint Injection of Corticosteroids for Treatment of Shoulder Stiffness

BACKGROUND: We prospectively compared the response to blind and ultrasound-guided glenohumeral injection of corticosteroids for treatment of shoulder stiffness. METHODS: A total of 77 patients with shoulder stiffness between April 2008 and March 2012 were recruited. Patients were randomized to receive either a blind (group 1, n=39) or ultrasound-guided (group 2, n=38) glenohumeral injection of 40 mg triamcinolone. The clinical outcomes and shoulder range of motion (ROM) before injection, at 3, 6, and 12 months after injection and at the last follow-up were assessed. The same rehabilitation program was applied in both groups during the follow-up period. RESULTS: There was no significant difference in demographic data on age, sex, ROM, and symptom duration before injection between groups (p>0.05). There were no significant differences in ROM including forward flexion, external rotation at the side, external rotation at 90o abduction, and internal rotation, visual analogue scale for pain and functional outcomes including American Shoulder and Elbow Surgeons score, Simple Shoulder test between the two groups at any time point (p>0.05). CONCLUSIONS: Based on the current data, the result of ultrasound-guided glenohumeral injection was not superior to that of blind injection in the treatment of shoulder stiffness. We suggest that ultrasound-guided glenohumeral injection could be performed according to the patient's compliance and the surgeon's preference. Once familiar with the non-imaging-guided glenohumeral injection, it is an efficient and reliable method for the experienced surgeon. Ultrasound could be performed according to the surgeon's preference.

The Effect of Glenohumeral Internal Rotation Deficit on the Isokinetic Strength, Pain, and Quality of Life in Male High School Baseball Players

OBJECTIVE: To investigate the effects of glenohumeral internal rotation deficit (GIRD) on the isokinetic strength, body pain, and the quality of life in male high school baseball players of Korea. METHODS: Fifty-six male high school baseball players were divided into either group A (GIRD> or =20degrees, n=12) or group B (GIRD or =20degrees) was 21.43% in the present study. In the isokinetic strength test, a significantly weaker muscular state at an angular velocity of 180degrees/s was observed in group A, compared to group B. For the comparison of the pain, the frequency of shoulder pain was higher (33.93%) than other body pain, among the study subjects. CONCLUSION: GIRD is one of the main risk factors of glenohumeral joint damage, and it is correlated with reduced isokinetic strength and quality of life. High school baseball players will need appropriate shoulder rehabilitation programs for the improvement in their quality of life and performance.

A Randomized Comparative Study of Blind versus Ultrasound Guided Glenohumeral Joint Injection of Corticosteroids for Treatment of Shoulder Stiffness

BACKGROUND: We prospectively compared the response to blind and ultrasound-guided glenohumeral injection of corticosteroids for treatment of shoulder stiffness. METHODS: A total of 77 patients with shoulder stiffness between April 2008 and March 2012 were recruited. Patients were randomized to receive either a blind (group 1, n=39) or ultrasound-guided (group 2, n=38) glenohumeral injection of 40 mg triamcinolone. The clinical outcomes and shoulder range of motion (ROM) before injection, at 3, 6, and 12 months after injection and at the last follow-up were assessed. The same rehabilitation program was applied in both groups during the follow-up period. RESULTS: There was no significant difference in demographic data on age, sex, ROM, and symptom duration before injection between groups (p>0.05). There were no significant differences in ROM including forward flexion, external rotation at the side, external rotation at 90o abduction, and internal rotation, visual analogue scale for pain and functional outcomes including American Shoulder and Elbow Surgeons score, Simple Shoulder test between the two groups at any time point (p>0.05). CONCLUSIONS: Based on the current data, the result of ultrasound-guided glenohumeral injection was not superior to that of blind injection in the treatment of shoulder stiffness. We suggest that ultrasound-guided glenohumeral injection could be performed according to the patient's compliance and the surgeon's preference. Once familiar with the non-imaging-guided glenohumeral injection, it is an efficient and reliable method for the experienced surgeon. Ultrasound could be performed according to the surgeon's preference.

The Effect of Glenohumeral Internal Rotation Deficit Improving Rehabilitation Program in the Male High-School Baseball Players / 대한스포츠의학회지

To investigate the effect of the glenohumeral internal rotation deficit (GIRD) improving rehabilitation program in high school baseball players on the change in muscle strength balance and pain of their shoulders. Seventy-six players (35 control group, 41 experimental group) participated in this 6-month study, from April, 2012 to September, 2012. The rehabilitation program (sleeper stretch) was carried out by coaches of experimental group. The experimental group showed a significant decrease, while the control group didn't show significant change in GIRD. The shoulder flexion-extension isokinetic strength ratio of experimental group changed only slightly, while that of control group experienced a bigger change. Experimental group players initially had high frequency of shoulder pain, but decreased to 53% at the end. Also, the Short Form-36 Health Survey showed the increase of total score. GIRD improving rehabilitation program helps to maintain the balance of shoulder extension-flexion strength ratio and relieve shoulder pain in the baseball players.

Superior Labral Dimension of the Glenohumeral Joint on Direct MR Arthrography (MRA): Relationship with Presence of SLAP (Superior Labrum Anterior to Posterior) Lesion

PURPOSE: To evaluate the relationship between superior labral dimension of the glenohumeral joint on direct MRA and presence of SLAP lesion. MATERIALS AND METHODS: IRB approval was obtained and informed consent was waived for this retrospective study. Direct MRA studies of the shoulder in 296 patients (300 shoulders) with arthroscopic surgery were analyzed by two radiologists blinded to the arthroscopic results, which were used as gold standard. One of the radiologists reviewed the images twice (session 1 and 2) for the evaluation of intra-observer variability. Transverse and longitudinal dimensions of superior labrum on coronal T1-weighted images were measured as base and height of the inverted triangular-shaped superior labrum and compared between patients with SLAP lesions vs. non-SLAP patients. Presence of meniscoid labrum was noted. Statistical analysis was done using unpaired t-test. RESULTS: Among 279 patients (283 shoulders), 122 patients (43.1%) had SLAP lesions. The mean base/height of superior labrum in SLAP and non-SLAP patients measured on T1-weighted MR image were 8.8 mm / 5.2 mm, 8.5 mm / 4.9 mm for reader 1; 8.2 mm / 4.9 mm, 8.1 mm / 4.5 mm for session 1 of reader 2; 8.0 mm / 4.8 mm, 7.6 mm / 4.3 mm for session 2 of reader 2. In SLAP group, the mean labral height was larger than non-SLAP group with statistically significant difference (p<0.05). Fifteen patients (5.3%) had meniscoid labrum according to operation records. CONCLUSION: In patients with SLAP lesion, the height of the superior glenoid labrum on oblique coronal image of MRA was slightly larger than non-SLAP patients. A larger height of superior glenoid labrum may be associated with SLAP lesions.

Arthroscopic capsular release for refractory shoulder stiffness / Liberação capsular artroscópica para a rigidez refratária do ombro

OBJECTIVE: To evaluate the results of the arthroscopic treatment of refractory adhesive capsulitis of the shoulder with two to nine years of follow-up, comparing the pre-and postoperative range of motion. METHODS: This was an observational study (case series) of 18 patients who underwent arthroscopic capsular release for refractory shoulder stiffness. The mean age was of 53.6 years (range: 39 to 68), with female predominance (77.77%) and nine cases left shoulders. There were 6 primary (33.33%) and 12 secondary cases (66.67%). Arthroscopic capsular release was performed in all patients after a mean of 9.33 months of physical therapy (range: 6 to 20 months) with a minimum follow-up of two years (range: 26 to 110 months). RESULTS: The mean active and passive forward flexion, external rotation and internal rotation increased from 94.4º/103.3º, 11.9º/21.9º, and S1/L5 vertebral level, respectively, to 151.1º/153.8º, 57.2º/64.4º, and T12/T10 vertebral level, respectively. There was a significant difference between the pre-and postoperative range of motion (p < 0.001). according to the constant-murley functional score (rom), the value increased from 14 (preoperative mean) to 30 points (postoperative mean). postoperatively, all patients showed diminished shoulder pain (none or mild/15 or 10 points in the constant-murley score). CONCLUSION: arthroscopic treatment is an effective treatment for refractory shoulder stiffness.

OBJETIVO: Avaliar os resultados do tratamento artroscópico da capsulite adesiva refratária do ombro com dois a nove anos de seguimento, comparando o arco de movimentos pré e pós-operatório. MÉTODOS: Foi realizado um estudo observacional (série de casos) em 18 pacientes com ombros rígidos resistentes a tratamento conservador submetidos à capsulotomia artroscópica. A idade média foi de 53,6 anos (39 a 68), com predomínio do sexo feminino (77,77%) e nove ombros esquerdos. Houve seis primários (33,33%) e 12 secundários (66,67%). A liberação capsular artroscópica foi realizada em todos os pacientes, após uma média de 9,33 meses de fisioterapia (6 a 20 meses), com seguimento mínimo de dois anos (26 a 110 meses). RESULTADOS: A média da elevação anterior, rotação lateral e rotação medial ativa e passiva aumentaram de 94,4º/103,3º, 11,9º/21,9ºe S1/L5 níveis vertebrais para 151,1º/153,8º, 57,2º/64,4ºe T12/T10 níveis vertebrais, respectivamente. Houve uma significativa diferença entre a amplitude de movimentos pré-e pós-operatório (p < 0,001). de acordo com o escore funcional de constant-murley, o valor aumentou de 14 (média pré-operatória) para 30 pontos (média pós-operatória). no pós-operatório, todos os pacientes demonstraram uma diminuição da dor no ombro (nenhuma ou leve/15 ou 10 pontos no escore de constant-murley). CONCLUSÃO: O tratamento artroscópico é eficaz para a rigidez refratária do ombro.

Artroplastia do ombro na osteoartrose: correlação entre função e parâmetros radiográficos / Shoulder arthroplasty in osteoarthritis: correlation between function and radiographic parameters

Objetivos: Avaliar a correlação entre os parâmetros radiográficos e as avaliações funcionais de pacientes com osteoartrose do ombro submetidos à artroplastia do ombro e descrever os resultados funcionais deste procedimento em nosso serviço. Métodos: Foram avaliados 21 pacientes (22 ombros) que realizaram artroplastias do ombro entre 1998 e 2010 e que apresentassem tempo mínimo de seguimento de 12 meses. A avaliação clínica foi realizada através das escalas de Constant-Murley, UCLA, EVA e da medida do arco de movimento ativo. Aferimos parâmetros radiográficos pré-operatórios (distância entre o topo da cabeça e o úmero e o acrômio, migração superior, inclinação do colo,“offset” medial, subluxação do úmero, erosão da glenóide) e pós-operatórios (inclinação da haste, migração dos componentes e sinais de soltura). Resultados: Os pacientes apresentaram melhora significativa em todos os parâmetros avaliados: flexão (p=0,0083), abdução (p=0,0266), rotação externa (p=0,0062), Constant-Murley (p=0,0001), UCLA (p<0,0001) e EVA (p=0,0002). A migração superior do úmero e as escalas de UCLA e de Constant-Murley apresentaram uma correlação significativa (p=0,0480 e p=0,0110, respectivamente). Os demais parâmetros radiográficos não demonstraram correlação com os resultados clínicos. Conclusão: a migração superior do úmero está relacionada a uma piora dos indicadores funcionais. Nível de Evidência IV, Série de Casos.

Objectives: To evaluate the correlation between radiographic parameters and functional assessments of patients with osteoarthritis of the shoulder who underwent shoulder arthroplasty and describe the functional outcomes of this procedure in our institution. Methods: we evaluated 21 patients (22 shoulders) who underwent shoulder arthroplasty between 1998 and 2010 with a minimum follow-up of 12 months. Clinical evaluation was performed using the Constant-Murley scale, UCLA, VAS and measuring the arc of active motion. We analysed preoperative radiographic parameters (distance from the top of the head and the humerus and the acromion, superior migration, neck angulation, medial “offset”, subluxation, glenoid cavity erosion) and postoperatively we evaluated rod inclination, migration of components and loosening. Results: patients showed significant improvement in all parameters: flexion (p = 0.0083), abduction (p = 0.0266), external rotation (p = 0.0062), Constant-Murley (p = 0.0001 ), UCLA (p < 0.0001) and VAS (p = 0.0002). The superior migration of the humerus showed a significant correlation with UCLA and Constant-Murley scores (p = 0.0480 and p = 0.0110, respectively). The other radiographic parameters had no correlation with the clinical outcomes. Conclusion: the superior migration of the humerus is related to a worsening of clinical scores. Level of Evidence IV, Case Series.

Associação entre discinesia escapular e dor no ombro de praticantes de natação / Association between scapular dyskinesia and shoulder pain in swimmers

A escápula possui funções essenciais no ombro do atleta de arremesso. Qualquer desequilíbrio presente entre as estruturas responsáveis pela sua estabilidade originará uma condição denominada discinesia escapular, a qual é comumente acompanhada de dor no ombro. Este estudo tem o objetivo de verificar se há associação entre a discinesia escapular e a dor no ombro de praticantes de natação. Foi realizado um estudo analítico observacional de corte transversal, incluindo 36 praticantes de natação do sexo masculino, com idade de 18 a 36 anos. Como métodos diagnósticos sugestivos de discinesia escapular foram utilizados o Slide Lateral Scapular Test e a filmagem proposta por Kibler. A existência de proporções significativas entre as variáveis nominais foi comprovada pelo teste do qui-quadrado ou pelo teste exato de Fisher. Para identificar associações entre as variáveis contínuas e os grupos de estudo foi utilizado o teste t de Student. Um p < 0,05 foi considerado estatisticamente significante. O grau de concordância interexaminador (Kappa; p < 0,0001) foi considerado substancial, correspondendo a 86,1 por cento (0,7656) no ombro direito e 83,3 por cento (0,6412) no esquerdo. Constatou-se que a grande maioria (80 por cento) dos indivíduos que apresentaram positividade no Slide Lateral Scapular Test relatou dor no ombro. Dentre os nadadores que apresentaram discinesia escapular durante a filmagem, em 70,8 por cento também foi constatada a presença dessa condição no teste estático. Este é um estudo original no que diz respeito à abordagem da discinesia escapular em nadadores e em relacioná-la com a presença de dor no ombro. Porém, a hipótese inicial de que haveria uma associação significante não foi correspondida.

The scapula plays an essential role in the throwing motion performed by athletes. Scapular dyskinesia is a condition characterized by imbalance in the structures responsible for the joint stability, which is often accompanied by shoulder pain. The main objective of this study is to assess the relationship between scapular dyskinesia and shoulder pain in swimmers. A total of 36 male swimmers aged between 18 and 36 years were diagnosed for scapular dyskinesia utilizing two different methods: the Lateral Slide Scapular Test and the video recording method suggested by Kibler. Statistical analysis was performed using the Chi-square test or Fisher's exact test. Comparisons between groups were performed using the t-test. The degree of p< 0.05 was considered statistically significant. Significance was set at á=0.05. There was a high inter-rate reliability concerning the video analysis (Kappa; p<0.0001), corresponding to 86.1 percent (0.7656) on the right shoulder and 83.3 percent (0.6412) on the left shoulder. The majority of the individuals that had positive diagnosis assessed by the Lateral Slide Scapular Test (80 percent) reported pain on the shoulder. Furthermore, 70.8 percent of the subjects who had positive diagnosis by the video recording also had positive diagnosis in the static test. Although a significant association between scapular dyskinesia and shoulder pain was not found, this is an important study to approach these conditions in swimmers.

Triple Labral Lesion of Shoulder : A Case Report

PURPOSE: A triple labral lesion represents a combination of injuries of the anterior, posterior and superior glenoid labrum. The injury mechanism and symptoms is not completely understood. MATERIALS AND METHODS: We encountered a triple labral injury in a 39-year-old male complaining pain and active abduction difficulty after a motor vehicle accident. Currently, he does not complain any instability symptoms. The labrum was repaired using bio-absorbable suture anchors and a suture hook. RESULTS: Eighteen months following surgery, the active range of motion was restored and he had no difficulty in his daily activities.

Accuracy of intra-articular glenohumeral joint Injection without any guidance through modified nevaiser approach / 中国矫形外科杂志

24 h)with VAS ranging from 5-9 points.There was no occurrence of severe complications such as infection or shoulder malfunction.[Conclusion]The technique of glenohumeral joint injection without any guidance through modified Nevaiser approach is highly accurate.No complication was noted.This thechnique be widely used in glenohumeral joint injection.

Relationship between anterior-inferior glenohumeral instability and glenoid version / 第三军医大学学报

Objective To assess the relationship between anterior-inferior glenohumeral instability and glenoid version.Methods Both shoulders in 24 patients with unilateral anterior-inferior glenohumeral instability were scanned with multiplanar spiral CT scanner(MSCT).The scapula and the humerus were reconstructed by the volume rendering technique and multiplanar reformation in 4 slices on axial plane from glenoid top to its bottom.The scapular glenoid version angles of 24 patients were measured bilaterally in 4 levels,and compared bilaterally by statistic analysis.Results From the top to the bottom,the scapular glenoid version angle in the side with anterior-inferior glenohumeral instability was respectively(-15.24?10.18)?,(-8.22?8.47)?,(-2.88?4.56)? and(-2.49?6.43)?,while the angle in the healthy side was respectively(-15.07?12.11)?,(-10.63?7.25)?,(-6.04?3.61)? and(-5.26?3.02)?.Only the difference at the 4th plane was significant between the healthy side and the affected side(P

Radiologic Analysis in Normal Glenohumeral Joint / 대한정형외과학회잡지

We measured several relationships of humeral and glenoid articular surfaces with radiologic analysis in the 60 shoulders of normal adults(the 30 males and 30 females) who were without pain and limitation of motion. The average age was 29.1 year-old in the males(from 26 to 39), 27.7 year-old in the females(from 20 to 34). The results of measurement were as follows. The average radius of curvature of humeral head was 28.8±1.9mm in the males, 25.3±2,3mm in the females. The average radius of curvature of glenoid was 34.5±3.5mm in the males, 29.3±2.8mm in the females and there was difference between the radius of curvature of humeral head and glenoid about 4-Smm. Average surface area ratio of humeral head versus glenoid was 1.8±0.2 in male, 2.0±0.2 in female. The average thickness of humeral head from anatomical neck was 23.1±1.5mm in the males, 20.5±2.lmm in the females and there was distance between the radius of curvature of humeral head and the thickness of humeral head about 5 me and it was suggested that humeral head was not hemisphere. The average neck shaft angle of humerus was 51.6±4.8 degree in the males, 52.7±3.8 degree in the females. The average flare index was 3.6±0.6 in the males, 3.9±0.7 in the females, so that metaphysis of female was broader than that of male. The lateral humeral offset was 68.5±3.8mm in the males, 63.6±4.3mm in the females. The average distance from the greater tuberosity of humerus to the lateral acromion process was 20.1±3.9mm in the males, 17.6±5.1mm in the females. The average distance of upper surface from the humeral head to the greater tuberosity of humerus was 6.5±1.4mm in males, 5.9±2.0mm in females. The distance from the humeral head to the undersurface of acromion was 9.5±3.1mm in the males, 7.7±3.5mm in females. Our measurement of normal glenohumeral relationship would be useful in the diagnosis of shoulder disorders and in the design of prosthestic reconstruction in Korean. Further study would be required for the analysis of the three dimensional relationship because of the limitation of our two dimensional analysis.