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2.
Sports Med Arthrosc Rev ; 32(1): 51-57, 2024 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-38695504

RESUMEN

The study aimed to describe the changes in biomechanical properties of the supraspinatus tendon, deltoid muscle, and humeral head post arthroscopic rotator cuff repair using shear wave elastography. Shear wave velocity of the tendon, deltoid, and humeral head of 48 patients was measured at predetermined sites at 1 week, 6 weeks, 12 weeks, 6 months, and 12 months post repair. One-way ANOVA with Tukey's correction and Spearman's correlation were performed. Mean±SEM healing tendon stiffness, adjacent to tendon footprint, increased from 1 week (6.2±0.2 m/s) to 6 months (7.5±0.3 m/s) and 12 months (7.8±0.3 m/s) (P<0.001). Mean±SEM deltoid muscle stiffness was higher at 12 months (4.1±0.2 m/s) compared to 1 week (3.4±0.1 m/s) and 12 weeks (3.5±0.1 m/s) (P<0.05). Humeral head stiffness did not change. Following arthroscopic rotator cuff repair, supraspinatus tendon stiffness increased in a curvilinear fashion over 6 months. From 6 months, deltoid muscle stiffness increased, corresponding to when patients were instructed to return to normal activities.


Asunto(s)
Artroscopía , Lesiones del Manguito de los Rotadores , Manguito de los Rotadores , Humanos , Fenómenos Biomecánicos , Masculino , Femenino , Manguito de los Rotadores/cirugía , Manguito de los Rotadores/fisiopatología , Lesiones del Manguito de los Rotadores/cirugía , Lesiones del Manguito de los Rotadores/fisiopatología , Persona de Mediana Edad , Diagnóstico por Imagen de Elasticidad , Músculo Deltoides/cirugía , Músculo Deltoides/fisiopatología , Anciano , Cabeza Humeral/cirugía
3.
BMC Musculoskelet Disord ; 24(1): 867, 2023 Nov 08.
Artículo en Inglés | MEDLINE | ID: mdl-37936156

RESUMEN

BACKGROUND: In minimally invasive lateral plate osteosynthesis of the humerus (MILPOH) the plate is introduced through a deltoid split proximally and advanced through the central portion of the deltoid insertion and between bone and brachial muscle to the distal aspect of the humerus. The fracture is then indirectly reduced and bridged by the plate. Whereas it has been shown that the strong anterior and posterior parts of the distal deltoid insertion remain intact with this maneuver, its impact on deltoid muscle strength and muscular morphology remains unclear. It was the aim of this study to evaluate deltoid muscle function and MR-morphology of the deltoid muscle and its distal insertion after MILPOH. METHODS: Six patients (median age 63 years, range 52-69 years, f/m 5/1) who had undergone MILPOH for diaphyseal humeral fractures extending into the proximal metaphysis and head (AO 12B/C(i)) between 08/2017 and 08/2020 were included. Functional testing was performed for the injured and uninjured extremity including strength measurements for 30/60/90° shoulder abduction and flexion at least one year postoperatively. Constant-Murley-Score (CMS) including an age-and gender-adjusted version, were obtained and compared to the uninjured side. Oxford Shoulder Score (OSS) and the Disability of the Arm, Shoulder and Hand (DASH) questionnaire were acquired for the affected extremity. Quality of life was measured using the EQ visual analogue scale (EQ-5D-5 L VAS). MR imaging was performed for both shoulders accordingly at the time of follow-up to assess the integrity of the distal insertion, muscle mass and fatty degeneration of the deltoid muscle. Muscle mass was determined by measuring the area of the deltoid muscle on the axial MR image at the height of the center of the humeral head. RESULTS: Median follow-up was 29 months (range 12-48 months). Median difference of abduction strength after MILPOH was + 13% for 30°, 0% for 60° and - 22% for 90°. For flexion, the difference to the uninjured side was measured 5% for 30°, -7% for 60° and - 12% for 90°. Median CMS was 75 (66-82) for the operated extremity compared to 82 (77-90) for the uninjured side. Age- and gender-adapted CMS was calculated 88 (79-99) vs. 96 (89-107). Median OSS was 47 (40-48). DASH was 26 (15-36). EQ-5D-5 L VAS ranged from 81 to 95 with a median of 90. The median difference of the deltoid muscle area on MRI was 2% (-21% to + 53%) compared to the uninjured side. No fatty degeneration of the deltoid muscle was observed. The weaker central part of the distal deltoid insertion was exclusively perforated by the plate, leaving the strong anterior and posterior parts of the insertion intact in all patients. CONCLUSIONS: MILPOH was associated with good functional and subjective outcome. Minor impairment of abduction strength was observed with increasing abduction angles. The reason for this impairment is unclear since MILPOH did not affect the structural quality of the deltoid muscle and the integrity of the strong anterior and posterior parts of its insertion remained intact. TRIAL REGISTRATION: 26/05/2023: ISRCTN51786146.


Asunto(s)
Fracturas del Hombro , Hombro , Humanos , Persona de Mediana Edad , Anciano , Músculo Deltoides/diagnóstico por imagen , Músculo Deltoides/cirugía , Calidad de Vida , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Fijación Interna de Fracturas/métodos , Húmero , Placas Óseas , Fracturas del Hombro/diagnóstico por imagen , Fracturas del Hombro/cirugía , Imagen por Resonancia Magnética , Resultado del Tratamiento
4.
J Shoulder Elbow Surg ; 32(6): 1135-1145, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36849027

RESUMEN

BACKGROUND: The deltopectoral approach is well accepted for shoulder arthroplasty procedures. The extended deltopectoral approach with detachment of the anterior deltoid from the clavicle allows increased joint exposure and can protect the anterior deltoid from traction injury. The efficacy of this extended approach has been demonstrated in anatomic total shoulder replacement surgery. However, this has not been shown in reverse shoulder arthroplasty (RSA). The primary aim of this study was to evaluate the safety of the extended deltopectoral approach in RSA. The secondary aim was to evaluate the performance of the deltoid reflection approach in terms of complications and surgical, functional, and radiologic outcomes up to 24 months after surgery. METHODS: A prospective, nonrandomized comparative study was performed between January 2012 and October 2020 including 77 patients in the deltoid reflection group and 73 patients in the comparative group. The decision for inclusion was based on patient and surgeon factors. Complications were recorded. Patients were followed up for ≥24 months to evaluate their shoulder function and undergo ultrasound evaluation. Functional outcome measures included the Oxford Shoulder Score, Disabilities of the Arm, Shoulder and Hand score, American Shoulder and Elbow Surgeons score, pain intensity (rated on visual analog scale [VAS] from 0 to 100), and range of motion (forward flexion, abduction, and external rotation). A regression analysis was performed to evaluate any factors of influence on the VAS score. RESULTS: There were no significant differences in the complication rate between the 2 groups (14.5% in deltoid reflection group and 13.8% in comparative group, P = .915). Ultrasound evaluation was available in 64 patients (83.1%), and no proximal detachment was observed. In addition, there were no significant differences in functional outcome measures both preoperatively and at 24 months after surgery between the groups assessed based on the mean VAS pain score, Oxford Shoulder Score, Disabilities of the Arm, Shoulder and Hand score, American Shoulder and Elbow Surgeons score, forward flexion, abduction, and external rotation. Adjustment for possible confounders in a regression model indicated that only prior surgery significantly influenced the VAS pain score after surgery (P = .031; 95% confidence interval, 0.574-11.67). Deltoid reflection (P = .068), age (P = .466), sex (P = .936), use of glenoid graft (P = .091), prosthesis manufacturer (P = .382), and preoperative VAS score (P = .362) were not of influence. DISCUSSION: The results of this study show that an extended deltopectoral approach for RSA is safe. Selected reflection of the anterior deltoid muscle improved exposure and prevented anterior deltoid muscle injury followed by reattachment. Patients had similar functional scores preoperatively and at 24 months postoperatively compared with a comparative group. Furthermore, ultrasound evaluation showed intact reattachments.


Asunto(s)
Artroplastía de Reemplazo de Hombro , Artroplastia de Reemplazo , Músculo Deltoides , Articulación del Hombro , Humanos , Artroplastia de Reemplazo/métodos , Artroplastía de Reemplazo de Hombro/métodos , Músculo Deltoides/cirugía , Dolor , Estudios Prospectivos , Rango del Movimiento Articular/fisiología , Estudios Retrospectivos , Hombro/cirugía , Articulación del Hombro/diagnóstico por imagen , Articulación del Hombro/cirugía , Resultado del Tratamiento
5.
J Orthop Res ; 41(3): 489-499, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-35662238

RESUMEN

Functional outcome after reverse-shoulder-arthroplasty (RSA) in proximal humerus fractures (PHF) depends on deltoid muscle integrity and successful reattachment of the tuberosities for best possible recovery of rotator-cuff function. In this monocentric, prospective, randomized, controlled trial we investigated whether a reverse-fracture-prosthesis (RFP) with a metaphyseal fenestrated stem achieved superior shoulder and muscle function compared to a common reverse-prosthesis (RP) design for patients with PHF. Our hypothesis was that patients with RFP may achieve a superior healing rate of the greater tuberosity (GT) compared to patients receiving RP, which translates to significantly higher clinical outcome and functional scores as well as differences in deltoid muscle microperfusion. Forty-four patients with PHF were randomized preoperatively to one of the prosthesis types in RSA between 2018 and 2020 (22 with RFP and 22 with RP) and prospectively assessed 6 months after surgery. We assessed osteointegration of the GT with radiographs 1 day and 6 months postoperatively and examined shoulder function and patient satisfaction by using established shoulder scores. A contrast-enhanced ultrasound (CEUS) examination of both shoulders was performed to quantify intramuscular blood flow and evaluate vitality of the deltoid muscle. None of the functional and psychosocial scores or radiographs and ultrasound examinations showed significant differences between the RSA designs. The constant-Murley score (p = 0.384) and active anterior-elevation-abduction, and external rotation were comparable between the RFP and RP group. Similar healing rates of the GT were observed (p = 0.655). CEUS-assessed deltoid microperfusion revealed equivalent muscle vitality for both groups (p = 0.312). Level of evidence: Level II; Randomized Controlled Trial; Treatment Study. Clinical significance: The radiographic evaluation for the investigation of the GT healing rate indicates that the proclaimed benefits of the fracture prosthesis with fenestration design might not be as great as expected.


Asunto(s)
Artroplastía de Reemplazo de Hombro , Fracturas del Hombro , Articulación del Hombro , Humanos , Estudios Prospectivos , Músculo Deltoides/cirugía , Resultado del Tratamiento , Hombro/cirugía , Fracturas del Hombro/cirugía , Rango del Movimiento Articular , Estudios Retrospectivos
6.
Skeletal Radiol ; 52(6): 1251-1256, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36224399

RESUMEN

Calcific tendinitis is a potentially symptomatic disorder characterized by calcium deposits in the substance of the tendon. Although this condition can occur in any tendinous tissue throughout the human body, calcium deposition commonly occurs at tendon insertions near the bone-tendon junction. The musculotendinous junction of the deltoid muscle has peculiarly dense intramuscular tendons to which muscle fibers attach obliquely to create muscular strength. Given that the intramuscular tendons themselves, which form the consecutive part from the insertion, are subjected to unpredictable stress load or microtrauma similar to tendon insertions, it is reasonable to assume that calcific tendinitis could also occur at the intramuscular tendons. Here we report a case of chronic symptomatic calcium deposition in the lateral part of the deltoid muscle between the origin and the insertion, which was eventually surgically removed and confirmed as intramuscular calcific tendinitis.


Asunto(s)
Calcinosis , Tendinopatía , Humanos , Músculo Deltoides/diagnóstico por imagen , Músculo Deltoides/cirugía , Calcio , Tendones , Tendinopatía/diagnóstico por imagen , Tendinopatía/cirugía , Unión Miotendinosa , Calcinosis/diagnóstico por imagen , Calcinosis/cirugía
7.
J Orthop Trauma ; 36(4): 158, 2022 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-35298448
8.
Sportverletz Sportschaden ; 36(1): 55-59, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-32663898

RESUMEN

BACKGROUND: The deltoid is a large triangular muscle at the shoulder. It attaches proximally to the clavicle, acromion and scapula, while distally it attaches to the lateral deltoid tuberosity. Ruptures are rare, and the literature only reports cases of proximal detachment. In this article, we report the first case of distal traumatic deltoid muscle detachment and its successful management. CASE: A young female sustained a traumatic injury following a Jet Ski accident with loss of consciousness. A complete distal rupture of the deltoid muscle was diagnosed after the basic functions were regained and a thorough musculoskeletal examination could be conducted. A conservative approach helped her to regain an acceptable shoulder function, but there was persistent pain upon activity and cosmetic scarring. The patient underwent surgical reconstruction. Postoperatively, she recovered satisfactorily. DISCUSSION: Distal detachment of the deltoid muscle is rare. The choice for surgical treatment may be undertaken based on several factors including functional status and patient-based assessment.


Asunto(s)
Músculo Deltoides , Hombro , Músculo Deltoides/cirugía , Femenino , Humanos , Rotura
9.
Eur J Orthop Surg Traumatol ; 32(2): 333-339, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33884494

RESUMEN

INTRODUCTION: Reverse shoulder arthroplasty (RSA) leads to medialization and distalization of the centre of rotation of the shoulder joint resulting in lengthening of the deltoid muscle. Shear wave ultrasound elastography (SWE) is a reliable method for quantifying tissue stiffness. The purpose of this study was to analyse if deltoid muscle tension after RSA correlates with the patients' pain level. We hypothesized that higher deltoid muscle tension would be associated with increased pain. MATERIAL AND METHODS: Eighteen patients treated with RSA were included. Constant score (CS) and pain level on the visual analogue scale (VAS) were analysed and SWE was performed on both shoulders. All three regions of the deltoid muscle were examined in resting position and under standardized isometric loading. RESULTS: Average patient age was 76 (range 64-84) years and average follow-up was 15 months (range 4-48). The average CS was 66 points (range 35-89) and the average pain level on the VAS was 1.8 (range 0.5-4.7). SWE revealed statistically significant higher muscle tension in the anterior and middle deltoid muscle region in patients after RSA compared to the contralateral non-operated side. There was a statistically significant correlation between pain level and anterior deltoid muscle tension. CONCLUSION: SWE revealed increased tension in the anterior and middle portion of the deltoid muscle after RSA in a clinical setting. Increased tension of the anterior deltoid muscle portion significantly correlated with an increased pain level. SWE is a powerful, cost-effective, quick, dynamic, non-invasive, and radiation-free imaging technique to evaluate tissue elasticity in the shoulder with a wide range of applications. LEVEL OF EVIDENCE: Diagnostic study, Level III.


Asunto(s)
Artroplastía de Reemplazo de Hombro , Diagnóstico por Imagen de Elasticidad , Articulación del Hombro , Artroplastía de Reemplazo de Hombro/efectos adversos , Niño , Preescolar , Músculo Deltoides/diagnóstico por imagen , Músculo Deltoides/cirugía , Humanos , Tono Muscular , Dolor , Rango del Movimiento Articular , Hombro/diagnóstico por imagen , Articulación del Hombro/diagnóstico por imagen , Articulación del Hombro/cirugía
10.
Med Ultrason ; 24(2): 174-179, 2022 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-34762727

RESUMEN

AIMS: The current difficulty of reverse shoulder arthroplasty (RSA) is soft tissue management, and adequate deltoid tension and at present there is no consensus and available tools (X-ray, MRI, EMG) remain difficult to apply in clinical follow-up. The objective of this study was (1) to determine reliability and feasibility of deltoid elasticity assessment using ultrasound elastographyand (2) to assess the change of deltoid stiffness after RSA by comparing shear wave speed (SWS) between healthy and RSA shoulders. MATERIAL AND METHODS: Twenty-six healthy (native shoulder, painless and complete range of motion) subjects and twelve patients with RSA were included. Two independent investigators performed 3 measurements on each segment. Measurements were bilateral. Anterior segment was also evaluated at 45° and 60° of passive abduction. Reliability and feasibility have been assessed (ISO5725-standard). RESULTS: Coefficient of measurements variation was less than 6.1% and 0.13 m/s. In the healthy group, SWS was not significantly different between anterior and middle segments; however, the SWS of the posterior segment was significantly lower than others (p<0.0001). In abduction position, compared to the rest position, SWS of the anterior segment decreased at 45° abduction (p=0.0003) and increased at 60° abduction (p<0.0001). Variability of measurement was higher in the RSA group. No significant difference was found between the SWS measurement of the operated and non-operated side. SWS measurements of the operated side of the anterior and middle segment were significantly higher compared to the healthy group. In abduction position, compared to rest position, no difference in SWS of the anterior segment was found at 45° abduction (p=0.71) and nor at 60° abduction (p=0.75). CONCLUSION: This study demonstrated feasibility and reliability of shoulder assessment with shear wave elastography. Reference values for asymptomatic patients can already be used in future studies on shoulder pathology and surgery.


Asunto(s)
Artroplastía de Reemplazo de Hombro , Diagnóstico por Imagen de Elasticidad , Articulación del Hombro , Músculo Deltoides/diagnóstico por imagen , Músculo Deltoides/cirugía , Diagnóstico por Imagen de Elasticidad/métodos , Humanos , Reproducibilidad de los Resultados , Articulación del Hombro/diagnóstico por imagen , Articulación del Hombro/cirugía
11.
JBJS Case Connect ; 11(1): e20.00305, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33929809

RESUMEN

CASE: A 27-year-old male pedestrian struck presented with left shoulder pain and weakness 4 months postinjury, with an isolated middle head of the deltoid tear. The patient's pain persisted despite extensive nonoperative management. The deltoid was primarily repaired to the lateral acromion using a transosseous suture repair technique. CONCLUSION: Suture repair of the deltoid to the acromion using transosseous tunnel fixation is a successful treatment for traumatic, isolated tears of the middle head of the deltoid muscle that fail conservative treatment. After surgical repair and physical therapy, our patient recovered full, pain-free range of motion and strength at 6 months.


Asunto(s)
Acromion , Músculo Deltoides , Adulto , Músculo Deltoides/cirugía , Humanos , Masculino , Rango del Movimiento Articular/fisiología , Rotura , Dolor de Hombro
13.
Arch Orthop Trauma Surg ; 141(7): 1149-1154, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-32529387

RESUMEN

INTRODUCTION: Reverse shoulder arthroplasty (RSA) shows promising short- and mid-term results in cuff tear arthropathy. However, functional impairments are described in long-term findings. Micromorphological changes in the periarticular musculature could be in part responsible for this, but have not yet been analysed. Thus, histological changes of the deltoid muscle and their association to the functional outcome were evaluated in this study. MATERIAL AND METHODS: A total of 15 patients treated with RSA were included in this prospective study. Functional outcome was assessed using the Constant Score (CS) and the DASH (disabilities of the arm, shoulder and hand) Score before RSA and after a mean follow-up of 12 months. Deltoid muscle biopsies were harvested intraoperatively and 12 months postoperatively. Mean deltoid muscle fibre area (MMFA) was calculated histologically after haematoxylin-eosin staining. RESULTS: Postoperative shoulder function significantly improved within 12 months (CS: Δ 37.4 ± 22.6, p = 0.001; DASH: Δ 27.1 ± 29.1, p = 0.006). The MMFA significantly decreased (p = 0.02), comparing the results from the intraoperative biopsy (MMFA: 8435.8 µm2, SD ± 5995.9 µm2) to the 12 months biopsy (MMFA: 5792. µm2, SD ± 3223.6 µm2). No correlation could be found between the functional score results and MMFA. CONCLUSION: Signs of deltoid muscle changes in terms of a reduced MMFA can be detected 1 year after RSA and thus already a long time before long-term functional impairments become apparent. Further studies with larger patient series and longer follow-up periods as well as extended histological assessments and simultaneous radiological examinations are required.


Asunto(s)
Artroplastía de Reemplazo de Hombro , Músculo Deltoides , Articulación del Hombro/cirugía , Artroplastía de Reemplazo de Hombro/efectos adversos , Artroplastía de Reemplazo de Hombro/métodos , Músculo Deltoides/patología , Músculo Deltoides/cirugía , Humanos , Estudios Prospectivos
14.
J Shoulder Elbow Surg ; 30(8): 1817-1826, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-33290849

RESUMEN

BACKGROUND: A medialized center of rotation (COR) in reverse total shoulder arthroplasty (RTSA) comes with limitations such as scapular notching and reduced range of motion. To mitigate these effects, lateralization and inferiorization of the COR are performed, but may adversely affect deltoid muscle force. The study purposes were to measure the effect of RTSA with varying glenosphere configurations on (1) the COR and (2) deltoid force compared with intact shoulders and shoulders with massive posterosuperior rotator cuff tears (PS-RCT). We hypothesized that the highest deltoid forces would occur in shoulders with PS-RCT, and that RTSA would lead to a decrease in required forces that is further minimized with lateralization and inferiorization of the COR but still higher compared with native shoulders with an intact rotator cuff. METHODS: In this study, 8 cadaveric shoulders were dissected leaving only the rotator cuff muscles and capsule intact. A custom apparatus incorporating motion capture and a dynamic tensile testing machine to measure the changes in COR and deltoid forces while simultaneously recording glenohumeral abduction was designed. Five consecutive testing states were tested: (1) intact shoulder, (2) PS-RCT, (3) RTSA with standard glenosphere, (4) RTSA with 4 mm lateralized glenosphere, and (5) RTSA with 2.5 mm inferiorized glenosphere. Statistical Parametric Mapping was used to analyze the deltoid force as a function of the abduction angle. One-way repeated-measures within-specimens analysis of variance was conducted, followed by post hoc t-tests for pairwise comparisons between the states. RESULTS: All RTSA configurations shifted the COR medially and inferiorly with respect to native (standard: 4.2 ± 2.1 mm, 19.7 ± 3.6 mm; 4 mm lateralized: 3.9 ± 1.2 mm, 16.0 ± 1.8; 2.5 mm inferiorized: 6.9 ± 0.9 mm, 18.9 ± 1.7 mm). Analysis of variance showed a significant effect of specimen state on deltoid force across all abduction angles. Of the 10 paired t-test comparisons made between states, only 3 showed significant differences: (1) intact shoulders necessitated significantly lower deltoid force than specimens with PS-RCT below 42° abduction, (2) RTSAs with standard glenospheres required significantly lower deltoid force than RTSA with 4 mm lateralized glenospheres above 34° abduction, and (3) RTSAs with 2.5 mm inferiorized glenospheres had significantly lower deltoid force than RTSA with 4 mm of glenosphere lateralization at higher abduction angles. CONCLUSIONS: RTSA with a 2.5 mm inferiorized glenosphere and no additional lateralization resulted in less deltoid force to abduct the arm compared with 4 mm lateralized glenospheres. Therefore, when aiming to mitigate downsides of a medialized COR, an inferiorized glenosphere may be preferable in terms of its effect on deltoid force.


Asunto(s)
Artroplastía de Reemplazo de Hombro , Articulación del Hombro , Prótesis de Hombro , Fenómenos Biomecánicos , Cadáver , Músculo Deltoides/cirugía , Humanos , Rango del Movimiento Articular , Articulación del Hombro/cirugía
15.
J Shoulder Elbow Surg ; 30(4): 712-719, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32711102

RESUMEN

BACKGROUND: Restoration of muscular strength is predicated on restoration of muscle length. The purpose of this study was to describe infraspinatus and deltoid length preoperative to reverse total shoulder arthroplasty (RTSA) to guide distalization and lateralization to restore preoperative muscle length. METHODS: This was a retrospective radiographic study. We measured the infraspinatus length on preoperative computed tomographic images and the deltoid length on preoperative radiographs. For all measurements, reliability was first established by comparing measurements between 2 observers, and intraclass correlation coefficients (ICCs) were calculated. We then calculated descriptive statistics for these muscle lengths and developed a formula to predict these muscle lengths from patient demographics. RESULTS: We measured infraspinatus length in 97 patients and deltoid length in 108 patients. Inter-rater reliability was excellent, with all ICCs >0.886. The mean infraspinatus length was 15.5 cm (standard deviation 1.3) and ranged from 12.6-18.9 cm, whereas the deltoid length was 16.2±1.7 cm and ranged from 12.5-20.2 cm. Both infraspinatus (r = 0.775, P < .001) and deltoid length (r = 0.717, P < .001) were highly correlated with patient height but did not differ between diagnoses. Formulae developed through linear regression allowed prediction of muscle length to within 1 cm in 78% and within 2 cm in 100% for the infraspinatus and 60% and 88% for the deltoid. CONCLUSION: Deltoid and infraspinatus length are variable but highly correlated with patient height. To maintain tension, 2 mm of lateralization and distalization should be added for every 6 inches (∼15 cm) of height above average for a Grammont-style RTSA.


Asunto(s)
Artroplastía de Reemplazo de Hombro , Articulación del Hombro , Músculo Deltoides/diagnóstico por imagen , Músculo Deltoides/cirugía , Humanos , Rango del Movimiento Articular , Reproducibilidad de los Resultados , Estudios Retrospectivos , Manguito de los Rotadores , Articulación del Hombro/diagnóstico por imagen , Articulación del Hombro/cirugía
17.
Ortop Traumatol Rehabil ; 22(4): 221-226, 2020 Aug 31.
Artículo en Inglés | MEDLINE | ID: mdl-32986002

RESUMEN

BACKGROUND: This study examined the clinical outcomes of fixation of displaced fractures of the proximal humerus using a trans-deltoid approach. MATERIAL AND METHODS: Twenty patients (13 male and 7 female) were treated with this technique, with a mean age of the patients of 38.85 years (range, 19 to 64 years). All patients were followed up for at least twelve months and were evaluated according to the Constant shoulder score. RESULTS: The mean Constant Shoulder score was 87.45, ranging from 63 to 100. Ten patients (50%) had excellent results, four patients (20%) had good results, three patients (15%) had satisfactory results, and three had adequate results (15%). There was a statistically significant difference between the type of the fracture and the final score (p=0.013), where 3-part fractures with impaction (11-B1), either valgus or varus impaction, showed higher scores than those without impaction. Four patients presented with post-operative complications varying from superficial infection to radial nerve palsy. CONCLUSIONS: 1. The trans-deltoid approach was a safe and reliable alternative to the delta-pectoral approach for the treatment of displaced proximal humerus fractures. 2. The impacted (11-B1) fracture type was a signifi-cant contributing factor in terms of good functional outcomes.


Asunto(s)
Placas Óseas , Músculo Deltoides/cirugía , Fijación Interna de Fracturas/métodos , Procedimientos Quirúrgicos Mínimamente Invasivos/instrumentación , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Fracturas del Hombro/cirugía , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento , Reino Unido , Adulto Joven
18.
J Card Surg ; 35(10): 2866-2868, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32720320

RESUMEN

BACKGROUND AND AIMS: Fracture and retention of a guidewire after cardiac resynchronization therapy device implantation has not been reported in the literature so far, although it is an uncommon but known complication during cardiac interventions like percutaneous coronary interventions and other cardiac catheterization procedures. METHODS: A 53 years old female patient presented with severe pain over the left arm and shoulder for a period of 1 to 2 days. The patient had a history of dilated cardiomyopathy with severe left ventricular dysfunction and underwent cardiac resynchronization therapy device implant 3 years back with subsequent lead replacement 6 months back due to lead dysfunction. On evaluation, a coronary guidewire which might have fractured and been retained inadvertently during previous surgical procedure, was discovered in her deltoid muscle. Her symptoms were attributed to the guide wire which may have been aggravated by the movements of her arm. Emergency surgical exploration was done and the guidewire was removed. RESULTS AND CONCLUSION: We are reporting a case of unlikely and unusual delayed presentation of retained intervention guide-wire post cardiac resynchronization therapy, which was retrieved from the left deltoid muscle.


Asunto(s)
Dispositivos de Terapia de Resincronización Cardíaca/efectos adversos , Cardiomiopatía Dilatada/terapia , Músculo Deltoides/cirugía , Remoción de Dispositivos/métodos , Falla de Equipo , Intervención Coronaria Percutánea/efectos adversos , Disfunción Ventricular Izquierda/terapia , Cardiomiopatía Dilatada/complicaciones , Urgencias Médicas , Femenino , Humanos , Persona de Mediana Edad , Resultado del Tratamiento , Disfunción Ventricular Izquierda/complicaciones
19.
BMC Musculoskelet Disord ; 21(1): 406, 2020 Jun 27.
Artículo en Inglés | MEDLINE | ID: mdl-32593311

RESUMEN

BACKGROUND: With the rapid aging of the population, the incidence of proximal humeral fracture (PHF) has increased. However, the optimal method for open reduction and internal fixation (ORIF) remains controversial. METHODS: We performed a retrospective analysis of patients with PHF who underwent locking plate internal fixation at our institution from January 2016 to December 2018. Patients were divided into two groups based on the surgical approach used: an expanded deltoid-split approach group (ORIF group) and minimally invasive deltoid-split approach group (minimally invasive percutaneous plate osteosynthesis, [MIPPO] group). The groups were compared in terms of demographic and perioperative characteristics, and clinical outcomes. RESULTS: A total of 115 cases of PHF were included in our study, of which 64 cases were treated using the minimally invasive deltoid-split approach and 51 using the extended deltoid-split approach. Fluoroscopy was performed significantly less frequently in the ORIF group and the surgical duration was shorter. However, the postoperative visual analogue scale (VAS) pain score and duration of postoperative hospital stay were significantly higher compared to the MIPPO group. Moreover, secondary loss was significantly less extensive in the ORIF group compared to the MIPPO group, while there was no significant group difference in fracture healing time, Constant shoulder score, or complications at the last follow-up visit. CONCLUSIONS: The clinical outcomes associated with both the minimally invasive and extended deltoid-split approaches were satisfactory. The data presented here suggest that the extended deltoid-split approach was superior to the minimally invasive deltoid-split approach in terms of operational time, fluoroscopy, and secondary loss of reduction, while the minimally invasive approach was superior in terms of postoperative pain and hospital stay. Accordingly, neither procedure can be considered definitively superior; the optimal surgical procedure for PHF can only be determined after full consideration of the situation and requirements of the individual patient.


Asunto(s)
Placas Óseas , Músculo Deltoides/cirugía , Fijación Interna de Fracturas/métodos , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Fracturas del Hombro/cirugía , Anciano , Estudios de Casos y Controles , Músculo Deltoides/diagnóstico por imagen , Femenino , Fijación Interna de Fracturas/instrumentación , Curación de Fractura , Humanos , Masculino , Persona de Mediana Edad , Procedimientos Quirúrgicos Mínimamente Invasivos/instrumentación , Tempo Operativo , Fracturas del Hombro/diagnóstico por imagen , Resultado del Tratamiento
20.
J Hand Surg Asian Pac Vol ; 25(2): 143-152, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32312206

RESUMEN

Background: Trapezius transfer has shown promise to restore shoulder movements and has stood through the passage of time. We here in describe a modification of trapezius transfer technique and review the current literature available. Methods: The modified trapezius transfer in which the trapezius muscle is extended with folded tensor fascia lata graft and attached as distally possible to the deltoid insertion was done in twelve patients at tertiary health care centre in India. Post-operative splinting and staged physiotherapy were given. Results: Results were described in the form of improvement in degree of shoulder abduction and Disabilities of the Arm, Shoulder and Hand (DASH) score. Six months post-surgery there were improvement in shoulder abduction and DASH score with mean 116 degrees (10-180 degree) and 38 (23-58) respectively. One patient showed poor results due to poor compliance in post-operative period. There were no major complications observed. Conclusions: The modified technique of trapezius transfer described here is a feasible option with good biomechanical outcomes. The technique is simple and can be adopted easily by emerging brachial plexus surgeon as a technique for secondary reconstruction of shoulder joint.


Asunto(s)
Neuropatías del Plexo Braquial/cirugía , Plexo Braquial/lesiones , Músculos Superficiales de la Espalda/trasplante , Adolescente , Adulto , Plexo Braquial/cirugía , Neuropatías del Plexo Braquial/etiología , Neuropatías del Plexo Braquial/fisiopatología , Estudios de Cohortes , Músculo Deltoides/cirugía , Mano , Humanos , Masculino , Movimiento , Modalidades de Fisioterapia , Articulación del Hombro/cirugía , Músculos Superficiales de la Espalda/fisiopatología , Resultado del Tratamiento , Adulto Joven
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