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1.
J Bodyw Mov Ther ; 38: 100-105, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38763548

RESUMEN

BACKGROUND: The impact of computer typing in a slump posture on pain, proprioception and muscle recruitment has not been extensively investigated. Therefore, the purpose of this study was to evaluate the extent of pain, proprioception and muscle activity resulting from computer typing in a slump posture in women who already suffer from chronic neck pain. METHODS: This cross-sectional study was conducted between May 20 to July 10, 2021. A total of 15 female 42-(±4.96)-year-old office workers with chronic non-specific neck pain participated in this study. Before and after 60 min of computer typing in a slump posture, proprioception and pain were measured using an inclinometer and visual analog scale (VAS), respectively. The activity of the cervical erector spine (CES) and upper trapezius (UT) muscle was also measured before and after the slump-posture computer typing, in upright, forward, and slump postures. RESU: lts: Paired-samples t-tests showed that pain was increased and proprioception in all directions (flexion, extension, right and left lateral flexion, and right, and left rotation) was less accurate (P < 0.05) after 60 min computer typing. The CES and UT muscle activity were elevated more in the forward head and slump posture than in the upright posture (P < 0.05). CONCLUSION: Sixty minutes computer typing in a slump posture increased neck pain, resulted in a decreased proprioception in the neck and was accompanied by an increased activity of the neck musculature.


Asunto(s)
Dolor de Cuello , Postura , Propiocepción , Humanos , Dolor de Cuello/fisiopatología , Femenino , Estudios Transversales , Postura/fisiología , Propiocepción/fisiología , Adulto , Estudios Retrospectivos , Dimensión del Dolor , Dolor Crónico/fisiopatología , Músculos Superficiales de la Espalda/fisiopatología , Músculos Superficiales de la Espalda/fisiología , Electromiografía , Músculos del Cuello/fisiología , Músculos del Cuello/fisiopatología , Persona de Mediana Edad
2.
J Bodyw Mov Ther ; 38: 375-383, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38763582

RESUMEN

INTRODUCTION: MPS is a chronic disorder caused by myofascial trigger points, leading to pain and limited neck movements due to impacted fascia. Studies have reported reduced fascia slides in chronic low back pain, but limited fascia slides in MPS patients are still unreported. AIM: We determined differences in upper trapezius' deep fascia slides between MPS and non-MPS participants. METHODS: Between January-August 2019, participants from diverse work sectors were recruited in Manila. An expert physiotherapist diagnosed MPS, while non-MPS participants performed full painless cervical movements. Participants underwent upper trapezius deep fascia scans on both shoulders while performing six cervical movements. An HS1 Konica Minolta ultrasound recorded the data. Two blinded physiotherapists used Tracker 5.0 © 2018 to analyze videos and quantify deep fascia slides by measuring the distance between two x-axis points. The Multivariate analysis of variance (MANOVA) assessed deep fascia slide differences in six active cervical movements. Pillai's Trace, with a range of 0-1 and a p-value of <0.05, was set. Effect sizes in individuals with and without MPS were calculated using Hedges' g and Cohen's d. RESULTS: Of the 327 participants (136 non-MPS, 191 MPS), 101 MPS participants had shoulder pain for <1 year and 103 experienced unilateral pain. The study examined 3800 ultrasound videos but found no significant difference in deep fascia slides across cervical movements between MPS and non-MPS groups (Pillai's Trace = 0.004, p = 0.94). Minor differences in deep fascia displacement were observed, with small effect sizes (g = 0.02-0.08). CONCLUSION: A limited deep fascia slide does not characterize MPS participants from non-MPS participants.


Asunto(s)
Fascia , Síndromes del Dolor Miofascial , Músculos Superficiales de la Espalda , Humanos , Síndromes del Dolor Miofascial/fisiopatología , Femenino , Adulto , Músculos Superficiales de la Espalda/fisiopatología , Músculos Superficiales de la Espalda/diagnóstico por imagen , Estudios de Casos y Controles , Masculino , Fascia/diagnóstico por imagen , Fascia/fisiopatología , Persona de Mediana Edad , Ultrasonografía/métodos , Adulto Joven , Puntos Disparadores/fisiopatología
3.
Ann Plast Surg ; 92(6): 625-634, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38718327

RESUMEN

BACKGROUND: About 30% to 50% of women with breast cancer undergo mastectomy, and approximately 50% of them will receive adjuvant radiotherapy (ART). This study evaluates the medium- and long-term impact of ART after immediate breast reconstruction (IBR) with latissimus dorsi myocutaneous (LDM) flap and silicone implants. METHODS: Clinical, surgical, and oncological data were retrospectively collected and analyzed based on the medical records of 176 patients who had undergone IBR with LDM flap and silicone implants. RESULTS: The data showed that 7.4% of patients had a history of previous radiotherapy, 56.3% received ART, 31.8% developed capsular contracture with a mean follow-up of 58.1 months, and 14.2% of surgeries were categorized as procedures with a prolonged operating time, lasting above 1 SD of the observed mean. Those who experienced prolonged operating time (odds ratio, 4.72; 95% confidence interval, 1.72-12.93; P = 0.003) and those who received ART (odds ratio, 7.38; 95% confidence interval, 3.18-17.10; P < 0.001) were more likely to develop capsular contracture. Thirty-two patients (18%) underwent capsulectomy with implant replacement, and 7 patients (4%) had the implant removed. The mean time between IBR and reoperation was 29.1 months. Patients who received ART were 2.84 times more likely to experience reconstruction failure or undergo implant-related reoperation ( P = 0.002). CONCLUSIONS: The results indicated that IBR with LDM flap and silicone implant followed by ART is a safe procedure, resulting in low rates of reconstruction failure. However, ART increased the likelihood of capsular contracture development and implant-related reoperation, having a negative effect on reconstructed breasts.


Asunto(s)
Implantes de Mama , Neoplasias de la Mama , Mamoplastia , Mastectomía , Colgajo Miocutáneo , Músculos Superficiales de la Espalda , Humanos , Femenino , Neoplasias de la Mama/radioterapia , Neoplasias de la Mama/cirugía , Persona de Mediana Edad , Radioterapia Adyuvante , Estudios Retrospectivos , Mamoplastia/métodos , Adulto , Músculos Superficiales de la Espalda/trasplante , Colgajo Miocutáneo/trasplante , Resultado del Tratamiento , Anciano , Estudios de Seguimiento , Geles de Silicona , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología
4.
Microsurgery ; 44(4): e31185, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38716656

RESUMEN

BACKGROUND: Recent CMS billing changes have raised concerns about insurance coverage for deep inferior epigastric perforator (DIEP) flap breast reconstruction. This study compared the costs and utilization of transverse rectus abdominis myocutaneous (TRAM), DIEP, and latissimus dorsi (LD) flaps in breast reconstruction. METHOD: The study utilized the National Inpatient Sample database to identify female patients who underwent DIEP, TRAM, and LD flap procedures from 2016 to 2019. Key data such as patient demographics, length of stay, complications, and costs (adjusted to 2021 USD) were analyzed, focusing on differences across the flap types. RESULTS: A total of 17,770 weighted patient encounters were identified, with the median age being 51. The majority underwent DIEP flaps (73.5%), followed by TRAM (14.2%) and LD (12.1%) flaps. The findings revealed that DIEP and TRAM flaps had a similar length of stay (LOS), while LD flaps typically had a shorter LOS. The total hospital charges to costs using cost-to-charge ratio were also comparable between DIEP and TRAM flaps, whereas LD flaps were significantly less expensive. Factors such as income quartile, primary payer of hospitalization, and geographic region significantly influenced flap choice. CONCLUSION: The study's results appear to contradict the prevailing notion that TRAM flaps are more cost-effective than DIEP flaps. The total hospital charges to costs using cost-to-charge ratio and hospital stays associated with TRAM and DIEP flaps were found to be similar. These findings suggest that changes in the insurance landscape, which may limit the use of DIEP flaps, could undermine patient autonomy while not necessarily reducing healthcare costs. Such policy shifts could favor less costly options like the LD flap, potentially altering the landscape of microvascular breast reconstruction.


Asunto(s)
Mamoplastia , Colgajo Perforante , Humanos , Mamoplastia/economía , Mamoplastia/métodos , Femenino , Colgajo Perforante/irrigación sanguínea , Colgajo Perforante/economía , Colgajo Perforante/trasplante , Persona de Mediana Edad , Estados Unidos , Recto del Abdomen/trasplante , Recto del Abdomen/irrigación sanguínea , Adulto , Tiempo de Internación/economía , Tiempo de Internación/estadística & datos numéricos , Arterias Epigástricas/cirugía , Arterias Epigástricas/trasplante , Neoplasias de la Mama/cirugía , Neoplasias de la Mama/economía , Colgajo Miocutáneo/trasplante , Colgajo Miocutáneo/economía , Colgajo Miocutáneo/irrigación sanguínea , Estudios Retrospectivos , Microcirugia/economía , Músculos Superficiales de la Espalda/trasplante , Cobertura del Seguro/economía , Anciano
5.
J Robot Surg ; 18(1): 189, 2024 May 02.
Artículo en Inglés | MEDLINE | ID: mdl-38693427

RESUMEN

Breast reconstruction is an integral part of breast cancer management. Conventional techniques of flap harvesting for autologous breast reconstruction are associated with considerable complications. Robotic surgery has enabled a new spectrum of minimally invasive breast surgeries. The current systematic review and meta-analysis study was designed to retrieve the surgical and clinical outcomes of robotic versus conventional techniques for autologous breast reconstruction. An extensive systematic literature review was performed from inception to 25 April 2023. All clinical studies comparing the outcomes of robotic and conventional autologous breast reconstruction were included for meta-analysis. The present meta-analysis included seven articles consisting of 783 patients. Of them, 263 patients received robotic breast reconstruction, while 520 patients received conventional technique. Of note, 477 patients received latissimus dorsi flap (LDF) and 306 were subjected to deep inferior epigastric artery perforator (DIEP) flap. There was a significantly prolonged duration of surgery (MD 58.36;95% CI 32.05,84.67;P < 0.001) and duration of anaesthesia (MD 47;95% CI 16.23,77.77;P = 0.003) among patients who underwent robotic surgery. There was a similar risk of complications between robotic and conventional surgeries. The mean level of pain intensity was significantly lower among patients who received robotic breast surgery (MD- 0.28;95% CI - 0.73,0.17; P = 0.22). There was prolonged length of hospitalization among patients with conventional DIEP flap surgery (MD- 0.59;95% CI - 1.13,- 0.05;P = 0.03). The present meta-analysis highlighted the feasibility, safety, and effectiveness of robotic autologous breast reconstruction. This included the successful harvesting of LDF and DIEP flap with acceptable surgical and functional outcomes.


Asunto(s)
Mamoplastia , Procedimientos Quirúrgicos Robotizados , Procedimientos Quirúrgicos Robotizados/métodos , Humanos , Mamoplastia/métodos , Femenino , Resultado del Tratamiento , Neoplasias de la Mama/cirugía , Tempo Operativo , Trasplante Autólogo/métodos , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/epidemiología , Músculos Superficiales de la Espalda/trasplante , Colgajo Perforante , Colgajos Quirúrgicos
6.
Hand Clin ; 40(2): 291-299, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38553100

RESUMEN

For major upper limb defects, a wide range of established pedicled and free flap options can be used. These include the latissimus dorsi/thoracodorsal artery perforator, lateral arm, posterior interosseous artery, rectus abdominis, gracilis, and anterolateral thigh flaps. Technical proficiency is essential, and favorable success rates in terms of functional and esthetic outcomes can be achieved. Herein, alternative flap options (both pedicled and free) are introduced and discussed through a few illustrative case examples.


Asunto(s)
Colgajos Tisulares Libres , Colgajo Perforante , Procedimientos de Cirugía Plástica , Músculos Superficiales de la Espalda , Humanos , Colgajos Tisulares Libres/irrigación sanguínea , Arterias , Extremidad Superior/cirugía , Colgajo Perforante/irrigación sanguínea , Resultado del Tratamiento
7.
Handchir Mikrochir Plast Chir ; 56(2): 141-146, 2024 Apr.
Artículo en Alemán | MEDLINE | ID: mdl-38437865

RESUMEN

Having established itself in various other areas of surgery as well as in urology, robotics is increasingly gaining importance in plastic surgery. The case presented in this manuscript describes the first published robotic-assisted harvesting of a latissimus dorsi muscle free flap in the German-speaking world. The aim is to increase the knowledge of robotics in plastic surgery and to support the introduction of robotic-assisted plastic surgery in Germany.


Asunto(s)
Colgajos Tisulares Libres , Procedimientos Quirúrgicos Robotizados , Músculos Superficiales de la Espalda , Recolección de Tejidos y Órganos , Humanos , Músculos Superficiales de la Espalda/trasplante , Recolección de Tejidos y Órganos/métodos , Procedimientos Quirúrgicos Robotizados/métodos , Colgajos Tisulares Libres/cirugía , Masculino , Microcirugia/métodos , Femenino
8.
Am J Sports Med ; 52(6): 1419-1427, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38544363

RESUMEN

BACKGROUND: Superior capsular reconstruction (SCR) and lower trapezius tendon transfer (LTT) have recently been used to manage irreparable posterosuperior rotator cuff tears (PSRCTs). There has been a paucity of comparative biomechanical considerations between the 2 procedures. PURPOSE: To compare the glenohumeral stability and biomechanical properties between SCR and LTT in PSRCTs involving the entire infraspinatus tendon region. STUDY DESIGN: Controlled laboratory study. METHODS: Eight fresh-frozen cadaveric shoulders were tested at 0°, 20°, and 40° of shoulder abduction. Maximum internal, external, and total humeral range of motion (ROM), superior translation of the humeral head, and subacromial contact characteristics were compared among 4 conditions: (1) intact rotator cuff, (2) PSRCTs involving the entire infraspinatus tendon region, (3) LTT using Achilles allograft (12 N and 24 N of loading), and (4) SCR using fascia lata allograft. RESULTS: Although a decrease in total ROM was noted in LTT with 12 N compared with the tear condition, LTT with both 12 N and 24 N as well as SCR did not restrict total rotational ROM compared with the intact condition. LTT had decreased total ROM compared with tear condition at 20° of abduction (P = .042), while no significant decrease was confirmed at all abduction angles after SCR. SCR and LTT with 24 N decreased superior translation compared with the PSRCT condition at 0° and 20° of abduction (P < .037) but not significantly at 40° of abduction, whereas LTT with a 24-N load decreased glenohumeral superior translation at all abduction angles (P < .039). Both SCR and LTT decreased subacromial contact pressure compared with the tear condition (P < .014) at all abduction angles. SCR decreased subacromial contact pressure at 0° and 40° of abduction (P = .019 and P = .048, respectively) compared with LTT with 12 N of loading, while there was no difference between SCR and LTT with 24 N of loading in all abduction angles. SCR increased the contact area compared with the PSRCT condition at all abduction angles (P < .023), whereas LTT did not increase the contact area. CONCLUSION: SCR and LTT decreased glenohumeral superior translation and contact pressure compared with PSRCT conditions. The LTT was superior to SCR in terms of superior translation of the humeral head at a higher shoulder abduction angle, whereas the SCR showed more advantageous subacromial contact characteristics compared with LTT. CLINICAL RELEVANCE: These biomechanical findings provide insights into these 2 fundamentally different procedures for the treatment of young and active patients with PSRCTs involving the entire infraspinatus tendon region.


Asunto(s)
Cadáver , Rango del Movimiento Articular , Lesiones del Manguito de los Rotadores , Articulación del Hombro , Transferencia Tendinosa , Humanos , Transferencia Tendinosa/métodos , Lesiones del Manguito de los Rotadores/cirugía , Fenómenos Biomecánicos , Persona de Mediana Edad , Articulación del Hombro/cirugía , Articulación del Hombro/fisiopatología , Articulación del Hombro/fisiología , Anciano , Masculino , Femenino , Músculos Superficiales de la Espalda/trasplante , Manguito de los Rotadores/cirugía , Fascia Lata/trasplante , Procedimientos de Cirugía Plástica/métodos
9.
J Bodyw Mov Ther ; 37: 177-182, 2024 01.
Artículo en Inglés | MEDLINE | ID: mdl-38432802

RESUMEN

INTRODUCTION: Lymphedema in the upper limb as a complication of breast cancer may lead to shoulder pain and dysfunctions. OBJECTIVE: To compare the scapular positioning, the shoulder range of motion, and muscle strength among women undergoing treatment for breast cancer with and without lymphedema and a control group. METHODS: This cross-sectional study evaluated women undergoing treatment for breast cancer (N = 25) and without lymphedema (N = 25), and a control group (N = 25). Static scapular positions and shoulder range of motion were measured by using an inclinometer. The shoulder and periscapular muscle strength were measured by using a hand-held dynamometer and the Disabilities of the Arm, Shoulder, and Hand Questionnaire was applied. Linear regression of the mixed effects model was used to compare the groups. RESULTS: Both groups of mastectomized women had reduced shoulder range of motion, scapular upward rotation, and muscle strength for shoulder and periscapular muscles compared to the control group. Also, women undergoing treatment for breast cancer with lymphedema had reduced shoulder range of motion, scapular upward rotation, increased anterior tilt, reduced muscle strength of the upper trapezius, and greater upper limb disability compared to women without lymphedema. CONCLUSION: Women undergoing treatment for breast cancer with lymphedema had even greater shoulder and scapulothoracic impairments when compared to the control group and women without lymphedema.


Asunto(s)
Neoplasias de la Mama , Linfedema , Músculos Superficiales de la Espalda , Femenino , Humanos , Hombro , Estudios Transversales , Neoplasias de la Mama/complicaciones , Extremidad Superior , Linfedema/etiología
10.
J Bodyw Mov Ther ; 37: 308-314, 2024 01.
Artículo en Inglés | MEDLINE | ID: mdl-38432822

RESUMEN

INTRODUCTION: Kettlebell exercises, specifically the bottom-up grip, have become increasingly popular in training programs. The purpose of this research was to determine if a bottom-up kettlebell grip favorably alters the electromyography (EMG), activity in the medial deltoid (MD), serratus anterior (SA), and lower trapezius (LT), muscles compared to using a dumbbell or traditional kettlebell grip during overhead shoulder presses. METHODS: Twenty-eight healthy, male, Division III collegiate baseball players (mean age = 19.8 ± 1.28 years) performed five overhead presses of equal weight, 11.34 kg (25 lbs), using a dumbbell (DB), kettlebell w/traditional grip (KB), and kettlebell held with a bottom-up grip (KBU). RESULTS: For the MD, there was significantly greater EMG activity using the DB compared to KBU, but no significant differences between the DB and KB, or KB and KBU. For the SA, greater EMG activity was noted using the KBU compared to KB, and KBU compared to DB, but no differences between KB and DB. For the LT, greater EMG activity was noted using the DB compared to KB, but no differences between DB and KBU, or KB and KBU. CONCLUSION: The KBU press only elicited greater EMG activity in the SA. The DB elicited greater EMG activity in both the MD and LT. Shoulder-complex EMG activity varies with different types of overhead presses using equivalent loads.


Asunto(s)
Béisbol , Músculos Superficiales de la Espalda , Masculino , Humanos , Adolescente , Adulto Joven , Adulto , Hombro , Electromiografía , Ejercicio Físico
11.
Rehabilitación (Madr., Ed. impr.) ; 58(1): [100825], Ene-Mar, 2024. ilus
Artículo en Español | IBECS | ID: ibc-229693

RESUMEN

La agenesia completa unilateral de trapecio es una afección infrecuente, reportada anteriormente en la literatura tras su hallazgo en muestras cadavéricas. Afecta a la estática, biomecánica y funcionalidad de la cintura escapular, por lo que es especialmente importante realizar una exhaustiva exploración física del paciente en consulta para descartarla o sospecharla. Presentamos el caso de un niño de 8 años con asimetría de la cintura escapular y escápula alada, remitido a la consulta de Rehabilitación por sospecha de distrofia facioescapulohumeral. La RM confirmó la agenesia de músculo trapecio derecho. No había alteración de la funcionalidad en el paciente. No se encontraron otras anomalías congénitas.(AU)


Congenital unilateral absence of trapezius is a rare condition, previously reported in cadaveric specimens. It can cause static shoulder asymmetry and affects the scapular biomechanics and functionality, so complete physical examination of the patient becomes important in order to dimiss or suspect an anomaly.We present a case of a 8 years old boy with asymmetry and scapular winging, who was referred to rehabilitation, suspected facioscapulohumeral dystrophy. An MRI scan of cervical spine and shoulder confirmed the absence of the right trapezius muscle. There were no functional disabilities. No other significant congenital anomalies were found.(AU)


Asunto(s)
Humanos , Femenino , Niño , Síndrome de Poland/rehabilitación , Escápula , Músculos Superficiales de la Espalda , Pacientes Internos , Examen Físico , Imagen por Resonancia Magnética
12.
Pol J Vet Sci ; 27(1): 75-84, 2024 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-38511605

RESUMEN

The trapezius muscle (TRAP) belongs to the scapulothoracic group of muscles, which play a crucial role in the integrity and strength of the upper limb, trunk, head, and neck movements and, thus, in maintaining balance. Combined retrograde tracing (using fluorescent tracer Fast Blue, FB) and double-labelling immunohistochemistry were applied to investigate the chemical coding of motoneurons projecting to the porcine TRAP. FB-positive (FB+) motoneurons supplying the cervical (c-TRAP) and thoracic part (th-TRAP) of the right (injected with the tracer) TRAP were located within the IX-th Rexed lamina in the ipsilateral ventral horn of the grey matter of the spinal medulla. Immunohistochemistry revealed that nearly all the neurons were cholinergic in nature [choline acetyltransferase (CHAT)- or vesicular acetylcholine transporter (VACHT)-positive]. Many retrogradelly labelled neurons displayed also immunoreactivity to calcitonin gene-related peptide (CGRP; approximately 68% of FB+ neurons). The smaller number of nerve cells (5%, 3%, 2% or 1%, respectively) stained for nitric oxide synthase (n-NOS), vasoactive intestinal polypeptide (VIP), neuropeptide Y (NPY) and substance P (SP). The retrogradely labelled neurons were closely apposed by nerve fibres expressing immunoreactivity to CHAT, VACHT, CGRP, SP, DßH, VIP, n-NOS, NPY, GAL, Leu-Enk and Met-Enk. Taking into account the clinical relevance of TRAP, the present results may be useful in designing further research aimed at the management of various dysfunctions of the muscle.


Asunto(s)
Péptido Relacionado con Gen de Calcitonina , Músculos Superficiales de la Espalda , Porcinos , Animales , Neuronas Motoras , Péptido Intestinal Vasoactivo
13.
Ann Plast Surg ; 92(4): 418-423, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38527349

RESUMEN

BACKGROUND: The latissimus dorsi free flap is a widely used reconstructive technique for complex lower leg defects in the pediatric population due to its reliability and anatomical features. However, the impact of this technique on the postoperative quality of life in children and adolescents, who require appropriate lower extremity function during their developmental period, remains to be analyzed. METHODS: Patients who underwent microsurgical lower leg reconstruction using the latissimus dorsi flap were analyzed retrospectively. The quality of life of these patients was assessed prospectively using the Lower Extremity Functional Scale (LEFS) at a minimum of 18 months after surgical reconstruction. RESULTS: Sixteen pediatric patients who had severe lower extremity injuries and underwent latissimus dorsi free flap reconstruction met the inclusion criteria. The mean follow-up period was 33.9 months (22-64 months). Two patients experienced postoperative complications: one had partial flap necrosis and surgical site infection, while the other developed a surgical site infection. The LEFS scores ranged from 26 to 80, with a mean score of 64.6. Remarkably, 14 of 16 patients achieved LEFS scores consistent with at least the 10th percentile when compared with normative data. Patients with severe associated fractures presented with the lowest scores. CONCLUSIONS: Based on our findings, the latissimus dorsi flap is reaffirmed to be an excellent choice for lower leg reconstruction in the pediatric population. It effectively restores the quality of life in patients who have experienced moderate to severe lower extremity injuries.


Asunto(s)
Traumatismos de la Pierna , Músculos Superficiales de la Espalda , Adolescente , Humanos , Niño , Pierna , Estudios Retrospectivos , Infección de la Herida Quirúrgica , Calidad de Vida , Reproducibilidad de los Resultados , Traumatismos de la Pierna/cirugía , Extremidad Inferior , Resultado del Tratamiento
14.
J Orthop Surg Res ; 19(1): 193, 2024 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-38504340

RESUMEN

BACKGROUND: The importance of several scapulothoracic muscles, including trapezius and serratus anterior, in maintaining physiological scapula kinematics has been highlighted in the past. However, the relationship between the scapula and the latissimus dorsi muscle remains unclear. Our clinical surgical observation is that the latissimus dorsi does not directly attach but rather runs superficial to the inferior angle of the scapula. Based on this observation, we hypothesise that the latissimus dorsi creates a dynamic track on which the scapula glides under the muscle belly during elevation of the arm, creating the latissimus-scapula overlap (LSO). METHODS: All consecutive patients who had a whole-body computed tomography scan (CT) in case of polytrauma evaluation between 2018 and 2021, with complete depiction of the scapula and latissimus dorsi muscle, were analysed. 150 shoulders in 90 patients with arms up were matched according to their age (within five years), gender, and affected side with 150 shoulders in 88 patients with arms down. Patients with pathologies of the upper extremities or thorax that potentially could alter LSO measurements were excluded. LSO was calculated as a ratio of the measured area of the latissimus dorsi projection on the scapula and the total scapula area. RESULTS: The mean age of the 178 patients (48 females; 13 males) was 60 years. The arms-up group showed a significantly higher LSO than the arms-down group (19.9 ± 6.3% vs. 2.7 ± 2.2%; p < 0.0001). In the arms-up group, approximately one fifth of the scapula was overlapped inferiorly by the muscle belly of the latissimus dorsi, contrary to the almost non-existing LSO in the arms-down group. CONCLUSION: With arms up, humans show a significantly higher LSO in comparison to arms down indicating that the latissimus dorsi indeed creates a dynamic track on which the scapula is forced to travel during abduction of the arm. This finding of increased LSO during the elevation of the arm warrants further consideration of the role of the latissimus dorsi in scapula kinematics and potentially scapular dyskinesis. LEVEL OF EVIDENCE: Level two diagnostic study.


Asunto(s)
Anomalías Congénitas , Escápula/anomalías , Articulación del Hombro/anomalías , Músculos Superficiales de la Espalda , Masculino , Femenino , Humanos , Preescolar , Músculos Superficiales de la Espalda/diagnóstico por imagen , Brazo/diagnóstico por imagen , Escápula/cirugía , Hombro
15.
Clin Biomech (Bristol, Avon) ; 112: 106194, 2024 02.
Artículo en Inglés | MEDLINE | ID: mdl-38335837

RESUMEN

BACKGROUND: This study investigated the epimuscular myofascial force transmission between the levator scapulae, serratus anterior, and rhomboid minor muscles. METHODS: The participants included 10 healthy males (a total of 20 shoulders). Differences in the shear moduli of the levator scapulae, serratus anterior, and rhomboid minor muscles were measured in the resting and levator scapulae stretching positions using shear wave elastography. The correlation between the rates of change for each muscle was also verified. FINDINGS: The results demonstrated a notable increase in the shear modulus from the resting to stretching positions for levator scapulae (42.9 ± 17.6 kPa vs. 52.4 ± 15.2 kPa) and serratus anterior (32.8 ± 12.9 kPa vs. 58.4 ± 18.5 kPa) (P = 0.02, P < 0.01). However, there was no significant difference in the shear modulus for the rhomboid minor between the resting (44.0 ± 19.2 kPa) and stretching (41.0 ± 20.2 kPa) positions (P = 0.40). Moreover, a significant positive correlation was observed between rates of change for the levator scapulae and serratus anterior muscles (P = 0.04, r = 0.459). INTERPRETATION: These findings indicate that the shear modulus of the serratus anterior increased with the stretching of the levator scapulae, suggesting the occurrence of epimuscular myofascial force transmission between these two muscles with different muscle insertions.


Asunto(s)
Músculos Superficiales de la Espalda , Masculino , Humanos , Fenómenos Mecánicos
16.
Arch Orthop Trauma Surg ; 144(4): 1491-1502, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38316700

RESUMEN

INTRODUCTION: While the well-established correlation between increased muscle volume and enhanced muscle strength is widely recognized, there have been no studies assessing volumetric muscle changes in transfer surgery in the shoulder. This study aimed to evaluate changes in transferred muscle volume and their clinical implications in anterior latissimus dorsi and teres major (aLDTM) tendon transfer in patients with anterior superior irreparable rotator cuff tears (ASIRCTs). MATERIALS AND METHODS: The study retrospectively examined 40 patients who underwent aLDTM tendon transfers for ASIRCTs between August 2018 and January 2022. Using ImageJ software, the LDTM muscle was segmented in T2-weighted oblique axial images, and total muscle volume (tLDTMV) of both immediate and postoperative 1-year were calculated. Pearson correlation analysis was used to determine the correlation between ΔtLDTMV and ΔASES scores, Δactive-ROM, and Δstrength. RESULTS: The current study revealed an 11.4% increase in tLDTMV at 1-year postoperative. Patients were grouped based on postoperative ASES score: Group 1 (Optimal, n = 17) and Group 2 (Suboptimal, n = 23). Although tLDTMVimmediate postoperative values were similar between groups (P = 0.954), tLDTMV1-year postoperative value was significantly higher in Group 1 compared to Group 2 (P = 0.021). In correlation analysis, ΔtLDTMV showed significant correlations with ΔASES score (r = 0.525, P < 0.001), ΔaROM of forward elevation (FE) (r = 0.476, P = 0.002), ΔaROM of internal rotation (IR) at back (r = 0.398, P = 0.011), Δstrength of FE (r = 0.328, P = 0.039), Δ strength of IR at 90° abduction (r = 0.331, P = 0.037), and IR at side (r = 0.346, P = 0.029). CONCLUSIONS: Significant increase in tLDTMV was observed at 1-year postoperative for ASIRCT patients. Notably, greater ΔtLDTMV exhibited a correlation with better ASES scores, increased aROM and strength in both FE and IR. Nevertheless, further research is required by employing more robust standardized measurement tools and a larger sample size.


Asunto(s)
Lesiones del Manguito de los Rotadores , Articulación del Hombro , Músculos Superficiales de la Espalda , Humanos , Lesiones del Manguito de los Rotadores/cirugía , Manguito de los Rotadores/cirugía , Estudios Retrospectivos , Resultado del Tratamiento , Articulación del Hombro/cirugía , Transferencia Tendinosa/métodos , Rango del Movimiento Articular/fisiología
17.
Asian J Surg ; 47(5): 2161-2167, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38350776

RESUMEN

BACKGROUND: Reconstruction of breast following mastectomy is important in terms of rehabilitating patients of breast cancer. Numerous approaches have been used in the reconstruction process. A procedure that has gained interest of the patients is reconstruction of breast using the autologous form. Main objective of this study is to determine the outcomes of modified fleur-de-lis latissimus dorsi flap in patients undergoing breast reconstruction. METHODOLOGY: This is a retrospective case series which was conducted at the Department of Plastic Surgery, SIMS/Services Hospital, Lahore, from January 2020 till December 2022. 184 patients age 25-60 years and Females with a history of mastectomy, who had to undergo creation of breast shape using a tissue flap from another part of the body at the site of breast following mastectomy were included. All patients were subjected to standard procedure of breast reconstruction with latissimus dorsi flap using modified fleur-de-lis technique and postoperatively weekly assessment in the first month and then monthly until 3 months was carried out and outcome of the study was analysed. RESULTS: The mean age and VAS score of the patients was 49.7 ± 9.17 and 6 ± 2.21, respectively. 57.1 % patients have DCIS, benign in 38 % patients and other tumours were present in 4.9 % patients. Immediate versus delayed reconstruction was done in 63.6 % versus 36.4 % patients respectively. Good aesthetic outcome was achieved in 80.3 % patients CONCLUSION: Modified fleur-de-lis latissimus dorsi flap in patients undergoing breast reconstruction yielded a good aesthetic outcome in the majority of the patients.


Asunto(s)
Neoplasias de la Mama , Mamoplastia , Mastectomía , Colgajo Miocutáneo , Músculos Superficiales de la Espalda , Humanos , Mamoplastia/métodos , Femenino , Persona de Mediana Edad , Adulto , Estudios Retrospectivos , Músculos Superficiales de la Espalda/trasplante , Mastectomía/métodos , Neoplasias de la Mama/cirugía , Resultado del Tratamiento , Colgajo Miocutáneo/trasplante
18.
In Vivo ; 38(2): 842-848, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38418124

RESUMEN

BACKGROUND: Postoperative scar formation is inevitable, and a gold standard management has not been established to date. Due to the fact long and large scar formation occurs in reconstructive surgery, this study analyzed the relationship between various factors in patients who received breast reconstruction using latissimus dorsi (LD) flap to investigate appropriate and effective management approaches. PATIENTS AND METHODS: Twenty-seven patients who underwent breast reconstruction between June 2014 and January 2015 received laser therapy on their LD donor site at the Kyungpook National University Chilgok Hospital. Scar evaluation was performed on both the surgical scar and intact skin on the contralateral side. Scar evaluation was conducted at five specific points, 2 cm from the midpoint of the scar on each side. Laser treatment was performed at 4-week intervals, and patients were then followed-up for 6 months. To assess scars, gross images were taken using the same settings. In addition, spectrophotometry was used for color assessment, durometer for texture and pressure evaluation, and Vernier calipers and height gauges for a more precise and objective approach. RESULTS: The mean age of the participants was 45.7 years, and the mean body mass index was 22.1 kg/m2 The operator-evaluated scar scale scores were 107.2 and 97.3 in the experimental and control groups, respectively. In the patient-rated questionnaire, the scores were 62.3 and 59.4 in the experimental and control groups, respectively. CONCLUSION: When analyzing early-stage postoperative scars based on various factors, laser therapy is considered a very useful scar management approach. Additionally, when performing reconstructive surgery, tension force is regarded as a significant factor to take into account since it affects scar widening.


Asunto(s)
Terapia por Láser , Mamoplastia , Músculos Superficiales de la Espalda , Humanos , Persona de Mediana Edad , Cicatriz/etiología , Cicatriz/cirugía , Músculos Superficiales de la Espalda/cirugía , Colgajos Quirúrgicos , Mamoplastia/efectos adversos , Mamoplastia/métodos , Terapia por Láser/efectos adversos , Resultado del Tratamiento
19.
Microsurgery ; 44(2): e31152, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38363113

RESUMEN

INTRODUCTION: The main innervation of the trapezius muscle is provided by the spinal accessory nerve. Several studies describe the contributions of cervical plexus roots to the trapezius muscle innervation, either directly or through connections with the spinal accessory nerve. There is no adequate understanding of how the trapezius muscle is affected after using the spinal accessory nerve in nerve transfer procedures with the usual technique, preserving at least 1 branch for the upper trapezius. METHODS: We evaluated 20 patients with sequelae of traumatic brachial plexus injury who underwent surgical procedures for brachial plexus repair or free muscle transfer, which included the spinal accessory nerve transfer technique and were followed for a minimum of 1 year. The three portions trapezius muscle were evaluated by physical examination, magnetic resonance imaging (analysis of fatty degeneration) and electromyography. RESULTS: In all evaluation methods, the middle and lower portions of the trapezius muscle showed more significant morphological and/or functional impairment than the upper portion, in most cases. There was a statistically significant difference in all the complementary exams results, between the affected side (with sacrifice of the nerve) versus the normal side, in the middle and lower portions of the trapezius muscle. CONCLUSIONS: Physical examination alone is not sufficient to determine the residual functionality of the trapezius muscle. Magnetic resonance imaging and electromyography are useful tools to assess both morphological involvement of the trapezius muscle and nerve conduction impairment of the trapezius muscle, respectively. The results suggest that the middle and lower portions of the trapezius muscle are affected by previous SAN transfer and should be considered with caution for further muscle transfer procedures.


Asunto(s)
Plexo Braquial , Transferencia de Nervios , Músculos Superficiales de la Espalda , Humanos , Nervio Accesorio/cirugía , Músculos Superficiales de la Espalda/inervación , Plexo Braquial/cirugía , Plexo Cervical/anatomía & histología , Plexo Cervical/fisiología , Electromiografía , Transferencia de Nervios/métodos
20.
PLoS One ; 19(2): e0298544, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38386652

RESUMEN

This study investigated the relationship between the stiffness of the upper trapezius muscle and the range of rotational movement of the cervical spine. A total of 60 right-handed asymptomatic students participated in the study. Participants (N = 22) characterised by asymmetry in rotational movements were selected for the experimental group. A difference of ≥10° between right and left rotation of the cervical spine was considered asymmetrical. The control group (N = 38) included participants whose rotation difference was < 10°. Belonging to the experimental or control group did not significantly differentiate trapezius muscle stiffness. The rotation side differentiated the stiffness of the right and left trapezius muscles only in the group of people with rotational movement asymmetry. There were high correlation coefficients between right cervical rotation and the stiffness of the muscle on the right side, and between rotation to the left and the stiffness of the muscle on the left side. There is a relationship between the stiffness of the right and left upper trapezius muscles and the range of right and left rotational motion of the cervical spine. Stiffness of the upper trapezius correlates more strongly with rotation to the side on which the muscle lies than to the opposite side. Increased stiffness of the upper trapezius muscle on the side of limited cervical spine rotation is likely to be determined by the muscle fibre stretching mechanism.


Asunto(s)
Músculos Superficiales de la Espalda , Humanos , Rotación , Rango del Movimiento Articular/fisiología , Vértebras Cervicales/fisiología , Cuello
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