facet joint degeneration
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2021 ◽  
Vol 11 (10) ◽  
pp. 1947-1954
Author(s):  
Yi Ye ◽  
Xucan Wang ◽  
Zhenqing Yang ◽  
Qian Xu ◽  
Bo Zhang

Background: Facet joint degeneration (FJD), which is also called facet joint syndrome (FJS), has become one of the most commonly seen etiological factors for lumbago. Cartilage lesion triggered by lumbar facet joint (LFJ) degeneration might be related to mitochondrial impairment, but the its underlying mechanism remains unclear. Materials and methods: The endplate chondrocytes were induced by hydrogen peroxide (H2O2) to mimic the pathological conditions of oxidative stress. Enzyme linked immunosorbent assay (ELISA) were used for the evaluation of reactive oxygen species (ROS). Adenosine-triphosphate (ATP) level was assessed using ATP detection, along with the detection the expression of cytochrome C in mitochondria (mito-cyt c) and in cell cytoplasm (cyto-cyt c) and cleaved caspase 3 by Western blot analysis. TUNEL assay was conducted for the measurement of cell apoptosis in endplate chondrocytes. Reverse transcription-polymerase chain reaction (RT-qPCR) was used to verify the expression of heat shock protein 22 (HSP22) and the transfection efficiency of HSP22 interference plasmid. Results: It was found that H2O2 promoted the mitochondrial dysfunction, ROS generation and cell apoptosis in endplate chondrocytes. Moreover, HSP22 was down-regulated in H2O2-induced endplate chondrocytes, and interference of HSP22 decreased the ROS production, increased the ATP level and promoted the cell apoptosis, resulting in the enhanced impairment of endplate chondrocytes. Additionally, mitochondrial ROS inhibitor (Mito-TEMPO) ameliorated the injury effects of HSP22 silencing in the H2O2-induced endplate chondrocytes. Conclusion: In conclusion, HSP22 inhibits oxidative stress-induced endplate chondrocyte apoptosis by regulating mitochondrial pathway, possibly providing novel guidance direction for the treatment of LFJ degeneration.


2021 ◽  
Author(s):  
Hao Meng ◽  
Yuan Gao ◽  
Peng Lu ◽  
Guang-Min Zhao ◽  
Zhi-Cheng Zhang ◽  
...  

Abstract Background: To assess the effects of inter-segment pedicle screw fixation for the treatment of lumbar spondylolysis, and evaluate various risk factors potentially predicting the probability of disc and facet joint degeneration after instrumentation.Methods: The study included 54 male L5 spondylolysis patients who underwent pars repair and inter-segment fixation using pedicle screws. Bony union was evaluated using reconstruction images of computed tomography. Radiographic changes including the disc height, vertebral slip, facet joint and disc degeneration in the grade of adjacent and fixed segments were determined from before to final follow-up. Logistic regression analysis was performed to identify factors associated with the incidence of disc and facet joint degeneration.Results: Bony union was achieved in all cases. Logistic regression analysis revealed that duration of instrumentation of more than 15.5 months and 21.0 months were significant risk factor of the incidence of L4/5 and L5S1 facet degeneration, respectively. Conclusions: Inter-segmental pedicle screw fixation provides good surgical outcomes and good isthmic bony union rates in patients with lumbar spondylolysis. The duration of fixation was confirmed as a risk factor of facet joint degeneration. Once bony union is achieved, remove of the instruments should be recommended.


2021 ◽  
Vol 21 (9) ◽  
pp. S60
Author(s):  
Altug Yucekul ◽  
Burcu Akpunarli ◽  
Atahan Durbas ◽  
Tais Zulemyan ◽  
Irem Havlucu ◽  
...  

Author(s):  
Altug Yucekul ◽  
Burcu Akpunarli ◽  
Atahan Durbas ◽  
Tais Zulemyan ◽  
Irem Havlucu ◽  
...  

2021 ◽  
Vol 9 (7) ◽  
Author(s):  
Christopher Antonacci ◽  
M. Antonacci ◽  
William Bassett ◽  
Janet Cerrone ◽  
Allison Haas ◽  
...  

Treatment for adolescent idiopathic scoliosis (AIS) is dependent upon multiple factors, including curve type and magnitude, curve progression, skeletal maturity, and clinical trunk deformity. While fusion is effective at achieving curve correction, it is associated with disadvantages including prominent implants beneath the skin, back muscle scarring and atrophy, decreased spine range of motion, and decreased functional spinal mobility. Additional concerns include the potential for longer term development of premature adjacent level disc and facet joint degeneration above and below the fusion. Due to these issues with spinal fusion, surgeons have explored alternative surgical approaches to correct spinal deformity and halt curve progression using either growth modulation or remodeling of the spine while preserving motion. This paper provides an overview of a non-fusion scoliosis correction technique called Anterior Scoliosis Correction (ASC).


2021 ◽  
Vol 1 ◽  
pp. 100186
Author(s):  
Altug Yucekul ◽  
Burcu Akpunarli ◽  
Atahan Durbas ◽  
Tais Zulemyan ◽  
Irem Havlucu ◽  
...  

2020 ◽  
Vol 19 (4) ◽  
pp. 262-265
Author(s):  
RODRIGO ARNOLD TISOT ◽  
JULIANO DA SILVEIRA VIEIRA ◽  
DIEGO DA SILVA COLLARES ◽  
DARBY LIRA TISATTO ◽  
AUGUSTO PASINI ◽  
...  

ABSTRACT Objective To evaluate facet joint degeneration following surgical treatment in patients with lumbar disc herniation, seeking to correlate it with possible determining factors. Methods Cross-sectional observational study, which analyzed medical records, radiographs and magnetic resonance images of 287 patients with lumbar disc herniation treated surgically at the Spine Surgery Service of the Hospital Ortopédico de Passo Fundo. Information about age and sex was collected. In the imaging exams, the following variables were evaluated: facet joint angulation and its tropism, measured by the Karacan method, sacral slope and lumbar lordosis, measured by the Cobb method, arthrosis of the interfacetary joints, measured by the Weishaupt classification, and intervertebral disc degeneration, measured by the Pfirrmann classification. Results A statistically significant relationship was observed between facet joint degeneration and age (p = 0.002), and also between facet joint degeneration and sacral slope (p = 0.038). No correlation was found between facet joint degeneration and lumbar lordosis (p = 0.934). It was found that the most degenerated facet joints were those that had the greatest facet joint asymmetry (tropism). However, the mean degree of facet tropism did not increase homogeneously with the progression of the joint degeneration score (p = 0.380). Conclusion It was verified that there are, in fact, a multiplicity of factors related to the degree of facet joint degeneration in the low lumbar spine. Additional studies, correlated with the asymmetry of the facet joints, would be important to elucidate better preventive management of this degeneration, aiming to avert secondary low back pain and sciatica with advancing age. Level of evidence II; Retrospective study.


2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Molly Connolly ◽  
Andrew H. Rotstein ◽  
Justin Roebert ◽  
Rafal Grabinski ◽  
Frank Malara ◽  
...  

Abstract Background Lumbar spine abnormalities, in particular stress fractures to the pars interarticularis, are common in elite junior tennis players, though the difference in prevalence between males and females remains unclear. Further, facet joint orientation appears to be a possible option for recognizing which players might go on to present with a pars stress fracture. Given the link between pars stress fractures and low back pain in tennis players, it appears logical to explore the link between facet joint angle and pars abnormalities. Thus, the purpose of this study was to describe the prevalence of lumbar spine abnormalities and explore the relationship between facet joint orientation and pars abnormalities in elite adolescent tennis players. Methodology Lumbar spine MRI images of 25 elite junior tennis players were obtained and distributed between five radiologists for analysis. Descriptive comparisons and confidence intervals were used to describe the prevalence of the abnormalities. A generalized linear regression model was conducted to investigate the relationship between lumbar pars abnormalities and lumbar facet joint angles. Results Sixteen (64%) of 25 players were found to have at least one lumbar spine abnormality. Pars abnormalities affected 36% of players while bone marrow edema was found in 24% of players. Disc herniation, disc degeneration, and facet joint degeneration were diagnosed in 20%, 44%, and 24% of players respectively. Lastly, one player (4%) was diagnosed with spondylolisthesis. Females had significantly larger facet joint angles across L3/4 L5/S1 compared to males (p < 0.01). Further, those who had pars abnormalities had larger facet joint angles compared to those who did not (p < 0.001). Conclusion Disc degeneration, pars abnormalities, including bone marrow edema, and facet joint degeneration were common findings among elite adolescent tennis players. Additionally, this study is the first to discover that pars abnormalities are linked to facet joint angle in elite adolescent tennis players. This finding might assist in identifying tennis players at a greater risk of developing lumbar spine pars abnormalities in the future.


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