The Influence of Restrictive Pulmonary Dysfunction on Osteoporotic Thoracic Vertebral Fractures

Park, Jihun; Lee, Sang‐Min; Shim, Seung-Woo; Baek, Sung-Nyun; Choi, Yong‐Soo

doi:10.31616/asj.2020.0082

Cited by 4 publications

(5 citation statements)

References 17 publications

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“…Osteoporotic vertebral fractures (OVFs) are very common fractures in the elderly population [1]. After a severe wedged fracture, patients may experience low back pain, pulmonary dysfunction [2], and disturbances in activities of daily living [3]. Usually, conservative treatments for OVFs such as pain management [4], physiotherapy [5], and orthosis [6] are effective for most cases.…”

Section: Introductionmentioning

confidence: 99%

A New Minimally Invasive Technique for Thoracolumbar Focal Kyphosis Due to Osteoporotic Vertebral Fracture

Tanaka,

Askar,

Kuwamat

et al. 2024

Preprint

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Study design: Technical note. Objectives: To present a new technique of treatment for a patient with thoracolumbar focal kyphosis due to osteoporotic verte-bral fracture (OVFs). Background : OVFs are common among the elderly population. Following a severe wedged fracture, patients often experience low back pain and disruptions in activities of daily living. Reconstruction surgeries, such as corpectomy, are among the treatment options for this condition. However, corpectomy requires longer surgical times and involves a significant amount of blood loss. Materials and Methods : An 80-year-old woman presented to our hospital with severe low back pain and gait disturbance. She had experienced an L2 OVF six years prior. Although she had no neurological deficit, she could not walk more than 200m due to pain. Preoperative spinal radiographs revealed severe sagittal malalignment, with the L2 vertebra collapsed and focal kyphosis of L1-3 measuring 34 degrees. Results: The patient underwent anterior and posterior surgery in the right decubitus position using a C-arm free technique. The surgical time was 133 minutes with an estimated blood loss of 100 ml. Hyperlordotic cages were inserted in the upper and lower disc space via a lateral approach, while percutaneous pedicle screws (PPS) were inserted from a posterior approach. These procedures were performed simultaneously under navigation guidance only. Post-operative images showed excellent spinal alignment, with local kyphosis reduced from 34 to 14 degrees, and no major or severe complications occurred. At one-year follow-up, the patient was able to walk smoothly, with her visual analogue scale for low back pain improving from 73mm to 13mm, and her Oswestry Disability Index improving from 53.3% to 13.3%. Conclusions/Level of Evidence : The simultaneous use of hyperlordotic cages and PPS is an effective and innovative navigation technique that yields promising outcomes for thoracolumbar focal kyphosis resulting from OVFs. This approach not only reduces surgical time but also minimizes intraoperative blood loss. Level V.

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Section: Introductionmentioning

confidence: 99%

A New Minimally Invasive Technique for Thoracolumbar Focal Kyphosis Due to Osteoporotic Vertebral Fracture

Tanaka,

Askar,

Kuwamat

et al. 2024

Preprint

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“…However, in swarm robotics, other agents are regarded as dynamic obstacles, which increase the complexity of the problem. Several methods have been proposed to solve this avoidance problem, such as RSFC (Relative Safe Flight Corridor) (Park et al (2021)), distributed predictive control (Soria et al (2022)), HOOP (Hold Or take Optimal Plan) (Tang et al (2018)), and EGO (ESDF-free Gradient-based lOcal) Swarm (Zhou et al (2021)), all of which employ increasingly complex constraints. Safe and smooth trajectories need to be generated by optimization problems, which require significant computational resources with an increasing scale of the swarm.…”

Section: Introductionmentioning

confidence: 99%

Optimal virtual tube planning and control for swarm robotics

Mao,

Fu,

Quan

2023

The International Journal of Robotics Research

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This paper presents a novel method for efficiently solving a trajectory planning problem for swarm robotics in cluttered environments. Recent research has demonstrated high success rates in real-time local trajectory planning for swarm robotics in cluttered environments, but optimizing trajectories for each robot is still computationally expensive, with a computational complexity from [Formula: see text] to [Formula: see text] where [Formula: see text] is the number of parameters in the parameterized trajectory, [Formula: see text] is precision, and [Formula: see text] is the number of iterations with respect to [Formula: see text] and [Formula: see text]. Furthermore, the swarm is difficult to move as a group. To address this issue, we define and then construct the optimal virtual tube, which includes infinite optimal trajectories. Under certain conditions, any optimal trajectory in the optimal virtual tube can be expressed as a convex combination of a finite number of optimal trajectories, with a computational complexity of [Formula: see text]. Afterward, a hierarchical approach including a planning method of the optimal virtual tube with minimizing energy and distributed model predictive control is proposed. In simulations and experiments, the proposed approach is validated and its effectiveness over other methods is demonstrated through comparison.

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“…OVFs are commonly treated conservatively; nonetheless, it can be difficult to manage complicated cases that require surgery. OVFs can lead to poor activities of daily living (ADL), subsequent fractures (which are four times more common), pulmonary problems (which are three times more common), and increased mortality (15% increase) [1][2][3][4]. The presence of an OVF is a major predictor of morbidities, such as back pain, spine deformities, and a decline in quality of life (QOL) [5].…”

Section: Introductionmentioning

confidence: 99%

Management of Osteoporotic Vertebral Fracture: Review Update 2022

Jang

Kim²,

Lee

et al. 2022

Asian Spine J

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A vertebral fracture is the most common type of osteoporotic fracture. Osteoporotic vertebral fractures (OVFs) cause a variety of morbidities and deaths. There are currently few “gold standard treatments” outlined for the management of OVFs in terms of quantity and quality. Conservative treatment is the primary treatment option for OVFs. The treatment of pain includes short-term bed rest, analgesic medication, anti-osteoporotic medications, exercise, and a brace. Numerous reports have been made on studies for vertebral augmentation (VA), including vertebroplasty and kyphoplasty. There is still debate and controversy about the effectiveness of VA in comparison with conservative treatment. Until more robust data are available, current evidence does not support the routine use of VA for OVF. Despite the fact that the majority of OVFs heal without surgery, 15%–35% of patients with an unstable fracture, persistent intractable back pain, or severely collapsed vertebra that causes a neurologic deficit, kyphosis, or chronic pseudarthrosis frequently require surgery. Because no single approach can guarantee the best surgical outcomes, customized surgical techniques are required. Surgeons must stay current on developments in the osteoporotic spine field and be open to new treatment options. Osteoporosis management and prevention are critical to lowering the risk of future OVFs. Clinical studies on bisphosphonate’s effects on fracture healing are lacking. Teriparatide was intermittently administered, which dramatically improved spinal fusion and fracture healing while lowering mortality risk. According to the available literature, there are no standard management methods for OVFs. More multimodal approaches, including conservative and surgical treatment, VA, and medications that treat osteoporosis and promote fracture healing, are required to improve the quality of the majority of guidelines.

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The Influence of Restrictive Pulmonary Dysfunction on Osteoporotic Thoracic Vertebral Fractures

Cited by 4 publications

References 17 publications

A New Minimally Invasive Technique for Thoracolumbar Focal Kyphosis Due to Osteoporotic Vertebral Fracture

A New Minimally Invasive Technique for Thoracolumbar Focal Kyphosis Due to Osteoporotic Vertebral Fracture

Optimal virtual tube planning and control for swarm robotics

Management of Osteoporotic Vertebral Fracture: Review Update 2022

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