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1.
Ann Med Surg (Lond) ; 86(5): 2665-2670, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38694312

RESUMEN

Background: The current dilemma of osteosarcoma treatment is the resistance of chemotherapeutic drugs after long-term usage, which also introduces life-threatening side effects. Methods and results: To minimize chemoresistance in osteosarcoma patients, the authors applied shock waves (SWs) to human osteosarcoma MNNG/HOS cells, then evaluated the cell viability and extracellular ATP levels, and further investigated the effect of SWs on cisplatin (DDP) cytotoxicity in MNNG/HOS cells. The authors' results showed that 400 SW pulses at 0.21 mJ/mm2 exhibited little influence on the MNNG/HOS cell viability. In addition, this SW condition significantly promoted the extracellular ATP release in MNNG/HOS cells. Importantly, low-energy SWs obviously increased Akt and mammalian target of rapamycin (mTOR) phosphorylation and activation in MNNG/HOS cells, which could be partially reversed in the presence of P2X7 siRNA. The authors also found that low-energy SWs strongly increased the DDP sensitivity of MNNG/HOS cells in the absence of P2X7. Conclusions: For the first time, the authors found that SW therapy reduced the DDP resistance of MNNG/HOS osteosarcoma cells when the ATP receptor P2X7 was downregulated. SW therapy may provide a novel treatment strategy for chemoresistant human osteosarcoma.

2.
Technol Health Care ; 32(2): 545-550, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-37694321

RESUMEN

BACKGROUND: Nonunion is a major concern for orthopedic surgeons, particularly nonunion of the clavicle, which can cause severe pain, loss of full range of motion, poor sleep quality, and loss of strength in the affected individuals. Platelet-rich plasma (PRP), an important biological agent, is widely used in orthopedics. OBJECTIVE: We used a combination of three techniques - the PRP technique, autologous bone grafting technique, and internal plate fixation technique - to ensure adequate internal fixation and enable a bone growth-supportive environment at the fracture site. METHODS: The surgical approach was applied to a patient with clavicle nonunion. RESULTS: Based on postoperative follow-up findings and intraoperative findings at the time of re-removal of the patient's implant, the prognosis at the fracture site was considered satisfactory. CONCLUSION: We observed that the patient treated with this method had favorable clinical outcomes, and we recommend that this technique be used in patients with long-bone nonunion.


Asunto(s)
Fracturas Óseas , Fracturas no Consolidadas , Humanos , Fracturas no Consolidadas/cirugía , Resultado del Tratamiento , Trasplante Óseo/métodos , Clavícula/cirugía , Curación de Fractura , Fijación Interna de Fracturas/métodos , Placas Óseas , Fracturas Óseas/cirugía , Estudios Retrospectivos
3.
Mol Imaging Biol ; 25(4): 621-629, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37012517

RESUMEN

PURPOSE: The goal of this study was to develop an imaging probe-IRDye-680RD-OX40 mAb-that can be used for noninvasive imaging and optical imaging of rheumatoid arthritis (RA). OX40/OX40 ligand (OX40L) interactions have been shown to exert potent costimulatory effects on T cell activation. Detectable change in T cell activation profiles was observed in early RA. METHODS: OX40 expression pattern was analyzed by flow cytometry. N-hydroxysuccinimide (NHS) esters are used to label proteins selectively on free amino groups of OX40 monoclonal antibody (mAb). Characterization of IRDye-680RD-OX40 mAb was measured and a fluorescence spectrum gathered. Cell binding assay was also performed between activated and naïve murine T cells. Longitudinal near-infrared fluorescence (NIRF) imaging of the probe was performed on day 8, day 9, day 10, and day 11 of adjuvant-induced arthritis (AIA) mouse model. Paw thickness and body weight were compared between the OX40 mAb and IgG injection groups. RESULTS: NIRF imaging with IRDye-680RD-OX40 mAb revealed strong OX40-positive responses with high specificity. Flow analysis showed that OX40 was specifically expressed on the surface of T cells in RP and spleen of AIA model. The AIA group was significantly differentiated from the control group at all time points with imaging monitoring. The region of interest (ROI) was in line with ex vivo imaging and biodistribution study. This study highlights the potential utility of the OX40 NIRF imaging as a new strategy for RA prediction and T cell monitoring. CONCLUSION: The results provide evidence that IRDye-680RD-OX40 mAb detects organized T cells activation in early RA. The optical probe was capable of detection of RA pathogenesis. It identified transcriptional responses to RA that mediate its immune functions. Thus, it may be an ideal probe for RA imaging.


Asunto(s)
Artritis Reumatoide , Receptores del Factor de Necrosis Tumoral , Ratones , Animales , Receptores del Factor de Necrosis Tumoral/metabolismo , Glicoproteínas de Membrana/metabolismo , Factores de Necrosis Tumoral/metabolismo , Receptores OX40/metabolismo , Miembro 7 de la Superfamilia de Receptores de Factores de Necrosis Tumoral/metabolismo , Distribución Tisular , Linfocitos T/metabolismo , Artritis Reumatoide/diagnóstico por imagen , Artritis Reumatoide/metabolismo , Anticuerpos Monoclonales/metabolismo
4.
Technol Health Care ; 31(2): 783-787, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36404560

RESUMEN

BACKGROUND: Although tibial shaft fractures are the third most common long bone fractures in children after the forearm and femur, nonunion of these fractures are rare in the pediatric population. CASE REPORT: Despite seldom seen, tibial nonunion is very complex and it is also a devastating complication of tibial fracture especially when infected. Numerous methods have been employed to treat pediatric tibial nonunion, but there is no consensus. Here, we present a case of a child with right tibial shaft fracture nonunion. We treated this patient with ipsilateral free non-vascularized fibular graft. RESULTS: Both the nonunion site and fibular donor site united well with good function in the injured extremity and no adverse events. CONCLUSION: We recommend the use of ipsilateral free non-vascularized fibular graft for the treatment of pediatric tibial shaft nonunion.


Asunto(s)
Procedimientos de Cirugía Plástica , Fracturas de la Tibia , Humanos , Niño , Resultado del Tratamiento , Tibia , Peroné , Fracturas de la Tibia/cirugía , Estudios Retrospectivos
5.
Orthop Traumatol Surg Res ; 107(8): 103066, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34537389

RESUMEN

INTRODUCTION: The efficacy of the most commonly used interventions for clavicle fractures remains controversial. These interventions are: open reduction and plate fixation (ORPF), non-surgical intervention (NSI), and use of an intramedullary nail (IMN). In adult patients with clavicle fractures, choosing which intervention might be best is challenging. MATERIALS AND METHODS: PubMed, Journals@Ovid Full Text, Cochrane Central Register of Controlled Trials (CENTRAL), Ovid MEDLINE, and Embase were performed to search English-language studies from the inception to February 2020. Randomized controlled trials (RCTs) comparing any of these three interventions were included. Patient and baseline characteristics, nonunion, major complications, Constant-Murley score (CMS), and Disabilities of the Arm, Shoulder and Hand score (DASH) were extracted. Then, we evaluated the functional outcomes and adverse effects after use of these three interventions for the management of displaced midshaft clavicle fractures in a Bayesian network meta-analysis. RESULTS: A Bayesian random-effects model was conducted, and nonunion and major complications were evaluated with: risk ratio (RR) and 95% confidential interval (CI); while CMS and DASH were evaluated with mean differences (MD) and the corresponding 95% confidential interval CI. The rank probability of each endpoint was assessed on the basis of the surface area under the cumulative ranking curve (SUCRA). DISCUSSION: ORPF is most likely to be successful in achieving objective functional outcomes as captured by the CMS, and IMN demonstrates significant efficacy for subjective functional outcomes, as captured by DASH scores. Compared with the other interventions examined, IMN was associated with decreased risk for adverse effects. LEVELS OF EVIDENCE: I; meta-analysis.


Asunto(s)
Clavícula , Fracturas Óseas , Adulto , Placas Óseas , Clavícula/cirugía , Fracturas Óseas/cirugía , Humanos , Metaanálisis en Red , Ensayos Clínicos Controlados Aleatorios como Asunto , Resultado del Tratamiento
6.
Am J Transl Res ; 13(4): 2511-2517, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34017409

RESUMEN

OBJECTIVE: To study swimming exercise's effect on caspase-3 expression in chondrocytes in osteoarthritis (OA). METHODS: 36 SD rats were randomly separated into normal group (n = 12), OA model group (n = 12) and swimming exercise group (n = 12). After modeling, rats received no intervention in model group and swimming exercise once a day (15 min/time) for 4 consecutive weeks in swimming exercise group. After intervention for 4 weeks, specimens were taken to analyze tissue morphology by H&E staining, caspase-3 expression by Western blot and qPCR, chondrocytes apoptosis by TUNEL assay. RESULTS: HE staining revealed abnormal bone tissue morphology in model group and swimming exercise group with improved morphology after swimming exercise. Model group and swimming exercise group all showed significantly higher Caspase-3 protein level than normal group with lower level after swimming exercise (P < 0.05). Consistently, qPCR showed similar expression profile of caspase-3 mRNA level to the protein level. CONCLUSION: Swimming exercise can inhibit caspase-3 level and chondrocytes apoptosis in OA, thus improving the joint morphology.

7.
Medicine (Baltimore) ; 99(50): e23704, 2020 Dec 11.
Artículo en Inglés | MEDLINE | ID: mdl-33327361

RESUMEN

RATIONALE: Floating ankle is a rare traumatic condition characterized by a combination of tibial and ipsilateral foot fractures, with the ankle remaining intact. It is usually caused by high-energy trauma and also presents with serious soft tissue damage. Its treatment is mainly restricted to external fixation, which results in poor outcomes. We present a patient with a floating ankle who underwent staged treatment and achieved full internal fixation, subsequently returning to normal activity. PATIENT CONCERNS: A 26 year- old man had an accident with an reel machine and sustained an open fracture on his right lower extremity. DIAGNOSES: Digital radiograph demonstrated a distal tibial fracture, fibular fracture, and multiple metatarsal fractures, which fulfilled the criteria for a floating ankle. INTERVENTIONS: Initial ankle-spanning external fixation was performed. After 21 days, the patient underwent open reduction and internal fixation on his first and fifth metatarsals, and K-wire fixation on his fourth metatarsal. The external fixator was replaced by plaster fixation. Seven days later, the patient underwent internal fixation of his leg, open reduction and internal fixation with plating was applied of the fibular fracture, and minimally invasive plate osteosynthesis of the tibial fracture. OUTCOMES: At 1-year follow-up, bone union was identified by digital radiograph; after 2 years, his ankle function had fully recovered, and he resumed his normal activities. LESSONS: In the staged treatment protocol of the floating ankle, temporary external fixation provided traction and immobilization of the skeletal and soft tissues. Secondary internal fixation maintained the reduction and alignment and allowed early exercise, which is critical to the prognosis of a floating ankle.


Asunto(s)
Traumatismos del Tobillo/cirugía , Huesos del Pie/cirugía , Fijación Interna de Fracturas/métodos , Fracturas Abiertas/cirugía , Fracturas de la Tibia/cirugía , Adulto , Placas Óseas , Hilos Ortopédicos , Huesos del Pie/lesiones , Humanos , Masculino , Rango del Movimiento Articular
8.
Medicine (Baltimore) ; 99(36): e21971, 2020 Sep 04.
Artículo en Inglés | MEDLINE | ID: mdl-32899035

RESUMEN

BACKGROUND: The purpose of this meta-analysis was to comprehensively collect randomized controlled trials (RCTs) to assess the clinical efficacy of intrathecal morphine (ITM) versus local infiltration analgesia (LIA) in the treatment of total knee and hip arthroplasty patients. METHODS: Relevant studies were identified from the Embase, PubMed, Cochrane Library, Web of Science, Wanfang, and Chinese National Knowledge Infrastructure (CNKI) databases. We also reviewed the references of all identified articles to identify additional studies. For each study, we assessed the risk ratio (RR), weighted mean difference (WMD), and corresponding 95% confidence interval (95% CI) to synthesize outcomes. Meta-analysis was performed with Stata 12.0 software. RESULTS: We included 13 studies with 942 patients for meta-analysis. LIA significantly decreased the pain value with rest or mobilization until 72 hours (P < .05). LIA significantly decreased cumulative morphine consumption by 13.52 mg. Moreover, the length of hospital stay was lower in the LIA group than in the ITM analgesia group. Finally, LIA significantly reduced morphine-related complications (nausea and vomiting, pruritus, and respiration depression). CONCLUSIONS: LIA was an effective approach for relieving postoperative pain and reducing postoperative consumption of morphine compared with ITM in total knee and hip arthroplasty patients.


Asunto(s)
Analgesia/métodos , Analgésicos Opioides/administración & dosificación , Artroplastia de Reemplazo de Cadera , Artroplastia de Reemplazo de Rodilla , Morfina/administración & dosificación , Anestesia Local , Humanos , Inyecciones Espinales , Tiempo de Internación , Dolor Postoperatorio/prevención & control
9.
Exp Ther Med ; 20(3): 2783-2793, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32765773

RESUMEN

A number of meta-analyses have compared clinical outcomes following plate vs. intramedullary fixation for midshaft clavicle fractures (MSCF), but with conflicting results. There is a requirement for updated level-1 evidence to guide clinicians managing MSCF. The aim of the present systematic review and meta-analysis was to compare clinical outcomes following plate vs. intramedullary fixation of MSCF. The PubMed, Scopus, BioMed Central, Cochrane Central Register of Controlled Trials and Google Scholar databases were searched for records added until 1st July 2019. A total of 10 randomised controlled trials (RCTs) were included. Shoulder function was assessed using the Constant-Murley Shoulder Outcome questionnaire and the Disabilities of the Arm, Shoulder and Hand questionnaire (DASH). There was no statistically significant difference in Constant-Murley scores between plate and intramedullary fixation [Mean difference (MD)=0.75; 95% CI: -2.49 to 3.99; P=0.65; I2=85%]. Similarly, there was no statistically significant difference in DASH scores between the two groups (MD=1.55; 95% CI: -1.12 to 4.23; P=0.26; I2=89%). There was no statistically significant difference in complications requiring non-routine surgery between plate and intramedullary fixation [risk ratio (RR)=1.80, 95%CI: 0.80-4.05, P=0.15; I2=0%]. There was an increased risk of complications that did not require non-routine surgery with plate fixation as compared to intramedullary fixation (RR=2.38, 95%CI: 1.22-4.62, P=0.01; I2=70%). Plate fixation was also associated with an increased risk of infection and complications of cosmetic dissatisfaction. The present results indicated no difference in long-term functional outcomes between plate and intramedullary fixation of MSCF. Plate fixation was associated with an increased risk of complications not requiring non-routine surgery. Further high-quality RCTs shall strengthen the evidence on this subject.

10.
Mol Brain ; 13(1): 58, 2020 04 09.
Artículo en Inglés | MEDLINE | ID: mdl-32272942

RESUMEN

Calcium dysregulation is a key pathological event in Alzheimer's disease (AD). In studying approaches to mitigate this calcium overload, we identified the collapsin response mediator protein 2 (CRMP2), an axonal guidance protein that participates in synapse dynamics by interacting with and regulating activity of N-methyl-D-aspartate receptors (NMDARs). We further identified a 15 amino acid peptide from CRMP2 (designated CBD3, for calcium-binding domain 3), that reduced NMDAR-mediated Ca2+ influx in cultured neurons and post-synaptic NMDAR-mediated currents in cortical slices. Whether targeting CRMP2 could be therapeutically beneficial in AD is unknown. Here, using CBD3, we tested the utility of this approach. Employing the APP/PS1 mouse model of AD which demonstrates robust pathophysiology including Aß1-42 deposition, altered tau levels, and diminished cognitive functions, we asked if overexpression of CBD3 could rescue these events. CBD3 was engineered into an adeno-associated vector and nasally delivered into APP/PS1 mice and then biochemical (immunohistochemistry, immunoblotting), cellular (TUNEL apoptosis assays), and behavioral (Morris water maze test) assessments were performed. APP/PS1 mice administered adeno-associated virus (AAV, serotype 2) harboring CBD3 demonstrated: (i) reduced levels of Aß1-42 and phosphorylated-tau (a marker of AD progression), (ii) reduced apoptosis in the hippocampus, and (iii) reduced cognitive decline compared with APP/PS1 mice or APP/PS1 administered a control virus. These results provide an instructive example of utilizing a peptide-based approach to unravel protein-protein interactions that are necessary for AD pathology and demonstrate the therapeutic potential of CRMP2 as a novel protein player in AD.


Asunto(s)
Adenoviridae/metabolismo , Péptidos beta-Amiloides/metabolismo , Cognición , Péptidos y Proteínas de Señalización Intercelular/química , Proteínas del Tejido Nervioso/química , Péptidos/administración & dosificación , Péptidos/uso terapéutico , Presenilina-1/metabolismo , Administración Intranasal , Enfermedad de Alzheimer/patología , Enfermedad de Alzheimer/fisiopatología , Animales , Apoptosis/efectos de los fármacos , Cognición/efectos de los fármacos , Modelos Animales de Enfermedad , Vectores Genéticos/metabolismo , Células HEK293 , Hipocampo/patología , Humanos , Aprendizaje/efectos de los fármacos , Masculino , Memoria/efectos de los fármacos , Ratones Endogámicos C57BL , Ratones Transgénicos , Péptidos/farmacología , Fosforilación/efectos de los fármacos , Dominios Proteicos , Proteínas tau/metabolismo
11.
Medicine (Baltimore) ; 99(12): e19576, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32195969

RESUMEN

RATIONALE: Tension band wiring is the most widely accepted technique for the treatment of patellar fractures but the technique is associated with common complications like wire migration, prominence, and breakage. To reduce these complications, we developed and propose a modified technique that has a superior biomechanical strength and a potential to reduce such postoperative complications. PATIENT CONCERNS: The patient presented with pain and mild swelling in his left knee after he slipped on the floor and fell on his left knee. He has no significant past medical or surgical history. The patient took the tension band wiring as the first choice because of the wide acceptance. But he worried about the complications. DIAGNOSES: X-ray showed a transverse fracture of the left patella with an inferior pole occult fracture. INTERVENTIONS: The patient was operated with a modified technique of the classic tension band wiring for patellar fractures. In our 4-step procedure, double tension cerclage wires were wrapped under the exposed ends of the Kirschner wires (K-wires) and the tendons in figure-of-8 fashion. The aim was to increase the biomechanical strength so that when one of the tension wires fail, the other one can hold the fragments together. OUTCOMES: The patient recovered very well and without any complications. The patient was followed-up for 1 year and the fracture has united very well, with satisfying knee range of motion. LESSONS: From this case study, we can detect the biomechanical advantages of our technique which can increase the stability of the fracture and that allows early functional exercise and additionally the micromotion at the fracture site has a beneficial effect of fracture union. Based on the perfect outcomes, our technique is worthy of clinical application.


Asunto(s)
Hilos Ortopédicos/normas , Traumatismos de la Rodilla/cirugía , Rótula/cirugía , Complicaciones Posoperatorias/prevención & control , Hilos Ortopédicos/efectos adversos , Fijación Interna de Fracturas/métodos , Fracturas Óseas/cirugía , Humanos , Articulación de la Rodilla/patología , Masculino , Persona de Mediana Edad , Rótula/diagnóstico por imagen , Rótula/patología , Radiografía/métodos , Resultado del Tratamiento
12.
Pharmazie ; 74(2): 115-119, 2019 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-30782262

RESUMEN

The current study aimed to evaluate the role and underlying mechanism of cyclic adenosine phosphate (cAMP) on the functional recovery of spinal cord injury (SCI). Basso, Beattie and Bresnahan (BBB) scoring and inclined plane test indicated that cAMP treatment improved the functional recovery of SCI rats. Real time PCR and western blot analysis showed the mRNA and protein levels of IRE1, PERK, and ATF6 were increased in the SCI rats than those of sham control. However, higher levels of IRE1, PERK, and ATF6 were indicated after cAMP treatment. Meanwhile, more apoptotic cells were observed in the SCI rats, as evidenced by TUNEL staining and increased expression of GRP78, CHOP, and caspase12. In contrast, the expression of GRP78, CHOP, and caspase12 was decreased in SCI rats after cAMP treatment. In summary, we showed novel data that cAMP reduced cell apoptosis and functional recover after SCI mainly via activating UPR.


Asunto(s)
AMP Cíclico/farmacología , Traumatismos de la Médula Espinal/tratamiento farmacológico , Traumatismos de la Médula Espinal/metabolismo , Respuesta de Proteína Desplegada/efectos de los fármacos , Factor de Transcripción Activador 6/metabolismo , Animales , Apoptosis/efectos de los fármacos , Caspasa 12/metabolismo , AMP Cíclico/farmacocinética , Proteínas de Choque Térmico/metabolismo , Masculino , Proteínas de la Membrana/metabolismo , Actividad Motora/efectos de los fármacos , Proteínas Serina-Treonina Quinasas/metabolismo , Ratas , Ratas Sprague-Dawley , Recuperación de la Función , Médula Espinal/metabolismo , Médula Espinal/patología , Traumatismos de la Médula Espinal/patología , Vértebras Torácicas/patología , Factor de Transcripción CHOP/metabolismo , eIF-2 Quinasa/metabolismo
13.
Medicine (Baltimore) ; 98(7): e14497, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-30762776

RESUMEN

BACKGROUND: The term "floating" is used in orthopedic literature to describe certain patterns of skeletal injuries that share one common character which is disruption and discontinuity of bones above and below a joint. The first time used in orthopedic literature being in late 1970 to describe a type of elbow injury. Later the word was used increasingly and applied to a variety of injuries affecting the knee, shoulder, hip, forearm, hand, and ankle. Currently, there are about 12 different skeletal injuries described as floating. OBJECTIVES: The aim of this article was to define the term "floating" used in traumatic orthopedics and to discuss its history, mechanism of injury in each region, treatment and outcomes based on the currently available literature. As there were many separate articles describing different sites of floating injuries, this review aimed to summarize all floating injuries into 1 article.


Asunto(s)
Fracturas Óseas/clasificación , Fracturas Óseas/terapia , Factores de Edad , Traumatismos del Tobillo/clasificación , Traumatismos del Brazo/clasificación , Traumatismos del Brazo/terapia , Clavícula/lesiones , Síndromes Compartimentales/etiología , Peroné/lesiones , Fijación Interna de Fracturas/métodos , Fracturas Óseas/complicaciones , Fracturas Óseas/cirugía , Lesiones de la Cadera/clasificación , Lesiones de la Cadera/cirugía , Humanos , Traumatismos de la Rodilla/clasificación , Traumatismos de la Rodilla/cirugía , Huesos del Metacarpo/lesiones , Huesos Metatarsianos/lesiones , Procedimientos Ortopédicos , Terminología como Asunto , Lesiones de Codo
14.
Int J Clin Exp Pathol ; 12(5): 1589-1598, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31933976

RESUMEN

IGF-1R is expressed abnormally in osteosarcoma (OS) and could participate in its progression. In this study, we aimed to explore the effect of the IGF-1R inhibitor PQ401 as a treatment for OS. The relative expression of IGF-1R in OS patient tumors and the U2OS cell line were determined by qRT-PCR and by accessing information in a public database. Inhibition of cell proliferation by PQ401 was determined by MTT assay. Cell migration under low concentration treatment of PQ401 was carried out by transwell and wound healing assays. PQ401 induction of OS cell apoptosis was investigated by flow cytometry. Tumorigenesis under PQ401 treatment was evaluated by a colony formation assay. Finally, downstream blockage of the IGF-1R pathway was verified by western blotting. Our results show that the expression of IGF-1R was remarkably higher in OS cells, particularly in U2OS, than in other cancer-type cell lines. The inhibition of the IGF-1R pathway by PQ401 exhibited significant anticancer activity in the U2OS cell line in not only proliferation but also migration and colony formation. In addition, PQ401 is a strong inducer of OS cell apoptosis. Furthermore, western blotting was used to demonstrate that the IGF-1R related downstream pathway, including total ERK1/2, was significantly inhibited by PQ401. Thus, IGF-1R inhibition may represent a novel treatment for OS.

15.
Medicine (Baltimore) ; 97(3): e9669, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29505010

RESUMEN

RATIONALE: It is challenging to visualize and reduce a posterolateral tibial plateau fracture through an anterolateral approach as the tibial plateau fragments are often covered by the fibular head and ligamentous structures. PATIENT CONCERNS: In this case report, we describe a patient with a depression fracture of the posterolateral quadrant combined with a split fracture of the posteromedial quadrant and an avulsion fracture of the tibial intercondylar eminence. DIAGNOSES: Tibial plateau fracture(AO type 41-B3). INTERVENTIONS: A posteromedial approach combined with an anterolateral approach and an osteotomy involving the proximal tibiofibular joint of the tibial plateau was used to expose, reduce, and fix the fracture. OUTCOMES: There was no risk of injury to the common peroneal nerve or ligaments. The patient is recovering well and is satisfied with the function of the injured knee. LESSONS: We recommend anterolateral tibial plateau osteotomy for the treatment of posterolateral tibial plateau fractures in clinical practice.


Asunto(s)
Osteotomía/métodos , Tibia/cirugía , Fracturas de la Tibia/cirugía , Adulto , Humanos , Masculino
16.
Exp Ther Med ; 14(5): 4633-4638, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-29201161

RESUMEN

The present study aimed to identify the key genes influenced by fixation stability in early fracture hematoma and to elucidate their roles in fracture healing. The GSE53256 gene expression profile, including six fracture hematoma tissues, was downloaded from the Gene Expression Omnibus database. The differentially expressed genes (DEGs) in the fracture hematoma tissues from old rats with rigid fixation compared with semi-rigid fixation were identified using the limma package. Furthermore, Gene Ontology (GO) enrichment analysis for DEGs was performed using BiNGO, and a protein-protein interaction (PPI) network was constructed based on the Search Tool for the Retrieval of Interacting Genes database. A total of 265 DEGs (158 upregulated and 107 downregulated) in the fracture hematoma tissues were screened out. Additionally, the overrepresented GO terms were mainly associated with the extracellular region, positive regulation of locomotion and response to external stimulus. Transforming growth factor, ß 1 (Tgfß1), chemokine (C-X-C motif) ligand 12 (Cxcl12), matrix metallopeptidase 9 (mmp9) and serpin peptidase inhibitor, clade E, member 1 (serpine1) had higher degrees and were hub nodes in the PPI network. In conclusion, fixation stability may influence the fracture healing process, and important DEGs, including Cxcl12, mmp9, Tgfß1 and serpine1, may be important in this process.

17.
Medicine (Baltimore) ; 96(45): e8606, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-29137088

RESUMEN

RATIONALE: Clavicle fractures are common, and mostly occur in the midshaft. Methods for operative treatment of midshaft clavicle fractures are evolving, as they improve clinical outcomes compared with traditional conservative management. However, fixation of comminuted midshaft clavicle fractures with bone fragments separated by soft tissue remains a challenge. PATIENT CONCERNS: Here, we present a case of comminuted midshaft clavicle fracture with a bone fragment separated from the main fracture by soft tissue. DIAGNOSIS: Left comminuted midshaft clavicle fracture. INTERVENTIONS: We treated this patient with a novel double ligature technique using absorbable suturing. OUTCOMES: In the past 7 years, we have treated >50 patients with this technique. We have achieved good clinical outcomes with no complications. LESSONS: We recommend widespread use of our novel double ligature technique for treating comminuted midshaft clavicle fractures with bone fragments separated by soft tissue.


Asunto(s)
Clavícula/lesiones , Clavícula/cirugía , Fijación Interna de Fracturas/métodos , Fracturas Conminutas/cirugía , Accidentes de Tránsito , Adulto , Clavícula/diagnóstico por imagen , Tratamiento de Urgencia , Curación de Fractura , Fracturas Conminutas/diagnóstico por imagen , Humanos , Ligadura , Masculino , Suturas
18.
Medicine (Baltimore) ; 96(40): e8228, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28984777

RESUMEN

RATIONALE: We report the rare case of a 74-year-old man with anti-Ma2-associated paraneoplastic neurologic syndrome (PNS), and review and analyze the clinical manifestations, diagnosis, and treatment of the disease. PATIENT CONCERNS: The patient presented with a 5-month history of muscle weakness, progressive body aches, and weakness and numbness in both lower extremities. Before his hospitalization, he had experienced cognitive function decline; ptosis, inward gaze, and vertical gaze palsy in the right eye; and occasional visual hallucinations. Brain and spinal cord magnetic resonance imaging (MRI) yielded normal results. Anti-Ma2 antibodies were detected in both serum and cerebrospinal fluid. A 4-hour electroencephalogram showed irregular sharp slow waves and δ waves in the temporal region. Electromyography showed peripheral nerve demyelination. Positron-emission tomography/computed tomography (PET-CT) examination revealed hypermetabolism in the lymph nodes of the whole body. Biopsy of the lymph nodes showed non-Hodgkin lymphoma. DIAGNOSIS: A clinical diagnosis of lymphoma and PNS was made. INTERVENTIONS: The patient was treated with intravenous dexamethasone (15 mg/day) for 3 days. LESSONS: We have presented a rare case of a PNS involving both the central and peripheral nervous systems. The clinical features of this case indicated anti-Ma2-associated encephalitis and chronic inflammatory demyelinating polyneuropathy. PET-CT played a critical role in enabling early diagnosis and prompt treatment in this case.


Asunto(s)
Encefalitis Límbica/inmunología , Linfoma no Hodgkin/complicaciones , Síndromes Paraneoplásicos del Sistema Nervioso/complicaciones , Polirradiculoneuropatía Crónica Inflamatoria Desmielinizante/inmunología , Anciano , Anticuerpos/sangre , Anticuerpos/líquido cefalorraquídeo , Antígenos de Neoplasias/inmunología , Humanos , Encefalitis Límbica/complicaciones , Linfoma no Hodgkin/inmunología , Masculino , Proteínas del Tejido Nervioso/inmunología , Síndromes Paraneoplásicos del Sistema Nervioso/inmunología , Polirradiculoneuropatía Crónica Inflamatoria Desmielinizante/complicaciones
19.
Technol Health Care ; 25(5): 1021-1024, 2017 Oct 23.
Artículo en Inglés | MEDLINE | ID: mdl-28759979

RESUMEN

Anatomical reduction and rigid fixation of acetabular posterior wall fractures extending to the acetabular roof proves challenging because of the big bony fragment and muscular obstruction to accessing this region. This report describes a novel reconstructive technique in a patient with an acetabular posterior wall fracture involving the acetabular roof. Both the standard Kocher-Langenbeck approach and a greater trochanter osteotomy technique were used. Following anatomical reduction, a dual arc-shaped reconstruction plate technique was employed to achieve rigid fixation. The patient recovered with satisfactory function at the injured hip. We recommend this dual arc-shaped reconstruction plate technique for the treatment of acetabular posterior wall fractures extending to the acetabular roof in clinical practice.


Asunto(s)
Acetábulo/lesiones , Acetábulo/cirugía , Fijación Interna de Fracturas/métodos , Fracturas Óseas/cirugía , Adulto , Humanos , Masculino , Resultado del Tratamiento
20.
Medicine (Baltimore) ; 96(12): e6482, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28328865

RESUMEN

RATIONALE: Anatomical characteristics, such as subcutaneous position and minimal muscle cover, contribute to the complexity of fractures of the distal third of the tibia and fibula. Severe damage to soft tissue and instability ensure high risk of delayed bone union and wound complications such as nonunion, infection, and necrosis. PATIENT CONCERNS: This case report discusses management in a 54-year-old woman who sustained fractures of the distal third of the left tibia and fibula, with damage to overlying soft tissue (swelling and blisters). Plating is accepted as the first choice for this type of fracture as it ensures accurate reduction and rigid fixation, but it increases the risk of complications. DIAGNOSIS: Closed fracture of the distal third of the left tibia and fibula (AO: 43-A3). INTERVENTIONS: After the swelling was alleviated, the patient underwent closed reduction and fixation with an Acumed fibular nail and minimally invasive plating osteosynthesis (MIPO), ensuring a smaller incision and minimal soft-tissue dissection. OUTCOMES: At the 1-year follow-up, the patient had recovered well and had regained satisfactory function in the treated limb. The Kofoed score of the left ankle was 95. LESSONS: Based on the experience from this case, the operation can be undertaken safely when the swelling has been alleviated. The minimal invasive technique represents the best approach. Considering the merits and good outcome in this case, we recommend the Acumed fibular nail and MIPO technique for treatment of distal tibial and fibular fractures.


Asunto(s)
Peroné/cirugía , Fijación Interna de Fracturas/métodos , Fracturas Óseas/cirugía , Fracturas de la Tibia/cirugía , Clavos Ortopédicos , Placas Óseas , Femenino , Curación de Fractura , Humanos , Persona de Mediana Edad
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