相关实验视频
Updated: Jul 29, 2026

10:10
Reverse Total Shoulder Arthroplasty
Published on: July 5, 2011
43.2K
概括
拉特杰特手术显示了可比的结果,无论是作为初级手术还是用于肩部不稳定的修复手术. 主要开放的Latarjet (PLJ) 和修改为开放的Latarjet (RLJ) 都具有类似的反复失位和重新操作率.
科学领域:
- 整形外科手术 整形外科手术
- 运动医学运动医学
- 肩部不稳定的治疗治疗
背景情况:
- 关节镜Bankart修复 (ABR) 后前肩部不稳定的高复发率促使人们考虑将Latarjet手术作为初级手术.
- 拉达喷气手术是在持续的前肩不稳定的情况下进行修复手术的已知选择.
研究的目的:
- 为了比较初级开放后喷射 (PLJ) 与对前肩部不稳定的开放后喷射 (RLJ) 的修订的中期结果.
主要方法:
- 对29名因前肩不稳定而接受PLJ或RLJ的患者的回顾性分析 (2014-2023年).
- 排除标准包括<1年的随访,史,多方向不稳定性,并发旋转手套修复,或缺乏手术前成像.
- 评估关节骨损失 (GBL),Hill-Sachs病变宽度,反复发生的脱位和重复手术.
主要成果:
- 分析了12项PLJ和17项RLJ手术,平均随访时间分别为4.7年和4.6年.
- PLJ组的平均GBL (18.4%) 比RLJ组 (10.5%) 高,但Hill-Sachs病变大小类似.
- 在不同组中,复发发位率 (8.3% PLJ vs. 11.8% RLJ) 和重新手术频率 (25.0% PLJ vs. 23.5% RLJ) 是可比的.
结论:
- 主要开放的Latarjet (PLJ) 和修改为开放的Latarjet (RLJ) 显示了类似的反复发作,并发症和重新操作的频率.
- 这些发现支持考虑Latarjet手术作为一个可行的修订选项,因为肩膀不稳定性失败后的初级关节镜稳定.
相关概念视频
The Power Flow Problem and Solution
Power flow problem analysis is fundamental for determining real and reactive power flows in network components, such as transmission lines, transformers, and loads. The power system's single-line diagram provides data on the bus, transmission line, and transformer. Each bus k in the system is characterized by four key variables: voltage magnitude Vk, phase angle δk, real power Pk, and reactive power Qk. Two of these four variables are inputs, while the power flow program computes the...
Fast Decoupled and DC Powerflow
The fast decoupled power flow method addresses contingencies in power system operations, such as generator outages or transmission line failures. This method provides quick power flow solutions, essential for real-time system adjustments. Fast decoupled power flow algorithms simplify the Jacobian matrix by neglecting certain elements, leading to two sets of decoupled equations:
Radiological Investigation III: Pulmonary Angiogram and PET Scan
Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Aortic Regurgitation III: Medical Management
Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
Steady, Laminar Flow Between Parallel Plates
Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
Rapidly Varying Flow
Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
