scholarly journals Comparison of the Clinical Efficacy of Proximal Femoral Nail Antirotation and Femoral Head Replacement on Intertrochanteric Fracture and the Influence of Tartrate Resistant Acid Phosphatase 5b and Bone Alkaline Phosphatase

2021 ◽  
Vol 83 ◽  
Author(s):  
G. H. Ma ◽  
Y. L. Wu
Keyword(s):  
Alkaline Phosphatase ◽  
Acid Phosphatase ◽  
Femoral Head ◽  
Clinical Efficacy ◽  
Intertrochanteric Fracture ◽  
Bone Alkaline Phosphatase ◽  
Proximal Femoral Nail ◽  
Tartrate Resistant Acid Phosphatase ◽  
Femoral Nail ◽  
Proximal Femoral Nail Antirotation

scholarly journals Bone-Derived Serum Enzymes and Bone Density in Perimenopausal Caucasian Women

1993 ◽  
Vol 30 (2) ◽  
pp. 191-194 ◽  
Author(s):  
J D Johnston ◽  
S Koneru ◽  
T Kuwana ◽  
S B Rosalki
Keyword(s):  
Alkaline Phosphatase ◽  
Acid Phosphatase ◽  
Bone Density ◽  
Femoral Neck ◽  
Serum Levels ◽  
Bone Alkaline Phosphatase ◽  
Serum Enzymes ◽  
Tartrate Resistant Acid Phosphatase ◽  
Vertebral Bone ◽  
Caucasian Women

Serum levels of bone-origin alkaline phosphatase and of tartrate-resistant acid phosphatase were measured in Caucasian women aged 41–69 years who had volunteered for bone densitometry. Bone alkaline phosphatase and tartrate-resistant acid phosphatase were inversely correlated with vertebral bone density and with femoral neck bone density. Bone alkaline phosphatase and acid phosphatase were also significantly correlated, consistent with the concept of ‘coupling’ between osteoblast and osteoclast activity.

scholarly journals Finite element analysis of two cephalomedullary nails in treatment of elderly reverse obliquity intertrochanteric fractures: zimmer natural nail and proximal femoral nail antirotation-ΙΙ

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Jian Chen ◽  
Jian-xiong Ma ◽  
Ying Wang ◽  
Hao-hao Bai ◽  
Lei Sun ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Internal Fixation ◽  
Intertrochanteric Fracture ◽  
Proximal Femoral Nail ◽  
Intertrochanteric Fractures ◽  
Element Analysis ◽  
Femoral Nail ◽  
Unstable Intertrochanteric Fracture ◽  
Proximal Femoral Nail Antirotation

Abstract Background More elderly patients are suffering from intertrochanteric fractures. However, the choice of internal fixation is still controversial, especially in the treatment of unstable intertrochanteric fracture; thus, previous implants continue to be improved, and new ones are being developed. The purpose of our study was to compare the biomechanical advantages between the zimmer natural nail (ZNN) and proximal femoral nail antirotation-II (PFNA-II) in the treatment of elderly reverse obliquity intertrochanteric fractures. Methods A three-dimensional finite element was applied for reverse obliquity intertrochanteric fracture models (AO31-A3.1) fixed with the ZNN or PFNA-II. The distribution, peak value and position of the von Mises stress and the displacement were the criteria for comparison between the two groups. Results The stresses of the internal fixation and femur in the ZNN model were smaller than those in the PFNA-II model, and the peak values of the two groups were 364.8 MPa and 171.8 MPa (ZNN) and 832.3 MPa and 1795.0 MPa (PFNA-II). The maximum amount of displacement of the two groups was similar, and their locations were the same, i.e., in the femoral head vertex (3.768 mm in the ZNN model and 3.713 mm in the PFNA-II model). Conclusions The displacement in the two models was similar, but the stresses in the implant and bone were reduced with the ZNN. Therefore, the ZNN implant may provide biomechanical advantages over PFNA-II in reverse obliquity intertrochanteric fractures, as shown through the finite element analysis. These findings from our study may provide a reference for the perioperative selection of internal fixations.

scholarly journals Pseudoaneurysm of the internal iliac artery caused by proximal femoral nail antirotation following intertrochanteric fracture: a case report

2019 ◽  
pp. 030006051989238
Author(s):  
Cheng Ren ◽  
Qian Wang ◽  
Teng Ma ◽  
Zhong Li ◽  
Huijun Yuan ◽  
...  
Keyword(s):  
Iliac Artery ◽  
Intertrochanteric Fracture ◽  
Internal Iliac Artery ◽  
Rare Complication ◽  
Proximal Femoral Nail ◽  
Intense Pain ◽  
Left Femur ◽  
Femoral Nail ◽  
Internal Iliac ◽  
Proximal Femoral Nail Antirotation

Pseudoaneurysm of the internal iliac artery is a very rare complication of intertrochanteric fracture. Here, the case of an 88-year-old female patient, who presented with intense pain following surgery for intertrochanteric fracture of the femur, is reported. Radiography revealed intertrochanteric fracture of the left femur fixed by proximal femoral nail antirotation (PFNA). The PFNA was found to have disassembled, and the screw had penetrated through the acetabulum. As computed tomography (CT) revealed a haematoma behind the acetabulum, CT angiography was immediately performed. A pseudoaneurysm of the internal iliac artery caused by PFNA was revealed. Percutaneous endovascular treatment of the pseudoaneurysm was undertaken on an urgent basis. Three days later, the PFNA was removed, and the fracture was reduced and fixed with locking proximal femoral plate. The patient’s pain was significantly reduced following this corrective surgery. This case illustrates that substandard PFNA surgery for intertrochanteric fracture may result in pseudoaneurysm of the internal iliac artery.

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