在模块化瘤内置假体中发生尖端结节沉降:我们应该有多担心?
Anas Nooh1,2, Ahmed Aoude2, Adam Hart2
1College of Medicine, King AbdulAziz University, Jeddah, Saudi Arabia.
Clinical orthopaedics and related research
|September 7, 2024
概括
尖的沉降是模块化股骨瘤内置假体的重要并发症,影响14%的远端股骨置换. 需要进一步的研究,以了解这种晚期,渐进的损害对患者结果和金属离子水平的影响.
科学领域:
- 整形外科手术 整形外科手术
- 生物材料科学 生物材料科学
- 瘤重建 癌症重建
背景情况:
- 骨瘤患者的生存时间更长,增加了对瘤内置假体的依赖.
- 模块化植入物有风险的圆结腐蚀和沉降,释放金属颗粒.
- 血清离子增加的来源 (腐蚀与植入物) 和缩沉降仍然不清楚.
研究的目的:
- 在股骨模块瘤内置假体中,确定无放射性曲结沉降的生存率.
- 确定与缩沉沉相关的植入物特征.
主要方法:
- 84个远端/近端大腿骨置换术 (1996-2020) 的回顾性分析.
- 曲结的沉降的放射评估.
- 对诸如连接数和切割长度等因素的回归分析.
主要成果:
- 14%的远端大腿骨置换显示了缩的沉降.
- 没有沉降的10年生存率为91%,20年生存率为84%.
- 沉降是渐进的,通常涉及多个结点,并且与研究的危险因素无关.
结论:
- 随着晚期,渐进的沉降的尖损伤在远端股骨置换后很常见.
- 线性沉降的临床影响仍然未知.
- 进一步的研究应该调查长期结果和金属离子相关性.
相关概念视频
Tumor Progression
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
The Tumor Microenvironment
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
Metastasis
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Loss of Tumor Suppressor Gene Functions
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
Tumor Progression
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Loss of Tumor Suppressor Gene Functions
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...


