Use of a blocking screw for nail/medullary canal mismatch after cephalomedullary nailing for unstable pertrochanteric fractures

2021 ◽  
Author(s):  
Dae-Kyung Kwak ◽  
Yong-Min Lee ◽  
Ji-Hyo Hwang ◽  
Je-Hyun Yoo
Keyword(s):  
Medullary Canal ◽  
Pertrochanteric Fractures ◽  
Cephalomedullary Nailing

scholarly journals A six-year retrospective analysis of cut-out risk predictors in cephalomedullary nailing for pertrochanteric fractures

2017 ◽  
Vol 6 (8) ◽  
pp. 481-488 ◽  
Author(s):  
G. Caruso ◽  
M. Bonomo ◽  
G. Valpiani ◽  
G. Salvatori ◽  
A. Gildone ◽  
...  
Keyword(s):  
Retrospective Analysis ◽  
Pertrochanteric Fractures ◽  
Cephalomedullary Nailing ◽  
Risk Predictors

Mismatch between PFNa and medullary canal causing difficulty in nailing of the pertrochanteric fractures

2008 ◽  
Vol 128 (12) ◽  
pp. 1443-1446 ◽  
Author(s):  
Jin Ho Hwang ◽  
Jong Keon Oh ◽  
Sang Hwan Han ◽  
Won Yong Shon ◽  
Chang Wug Oh
Keyword(s):  
Medullary Canal ◽  
Pertrochanteric Fractures

scholarly journals Radiologic predictor of intraoperative lateral wall fractures in treatment of pertrochanteric fractures with cephalomedullary nailing

2020 ◽  
Vol 48 (4) ◽  
pp. 030006052092006
Author(s):  
Jun-qi Dai ◽  
Dongxu Jin ◽  
Changqing Zhang ◽  
Yi-Gang Huang
Keyword(s):  
Femoral Neck ◽  
Lateral Wall ◽  
Threshold Value ◽  
Tangent Line ◽  
Pertrochanteric Fracture ◽  
Pertrochanteric Fractures ◽  
Randomized Clinical Study ◽  
Cephalomedullary Nailing ◽  
Fracture Height ◽  
Superior Margin

Objective This study was performed to investigate the reliability of the height of pertrochanteric fractures as a predictor of lateral wall fractures after cephalomedullary nailing and provide a simple way to determine the threshold value. Methods We performed a prospective randomized clinical study of 50 consecutive patients who underwent measurement of the height of the pertrochanteric fracture and the tangent line to the superior margin of the contralateral femoral neck. The preoperative and postoperative integrity of the lateral wall was evaluated by computed tomography. Results The pertrochanteric fracture height was significantly lower in patients with than without intraoperative lateral wall fractures (15.6 vs. 28.5 mm, respectively). The threshold value of the fracture height was 20.445 mm, which was not significantly different from the mean height of the tangent line of the superior margin of the contralateral femoral neck (19.4 mm). Conclusions Pertrochanteric fractures with the proximal starting point lower than the mirror position of the tangent line to the superior margin of the contralateral femoral neck have a higher risk of intraoperative lateral wall fractures during cephalomedullary nailing.

Atypical Femoral Fracture in McCune-Albright Syndrome

2020 ◽  
Vol 7 (3) ◽  
pp. 147-152
Author(s):  
Salman Ghaffari ◽  
◽  
Mehran Razavipour ◽  
Parastoo Mohammad Amini ◽  
◽  
...  
Keyword(s):  
Femoral Fracture ◽  
Dynamic Compression ◽  
Plate Fixation ◽  
Medullary Canal ◽  
Mccune Albright Syndrome ◽  
Café Au Lait Spots ◽  
History Of ◽  
Albright Syndrome ◽  
Mccune Albright

McCune-Albright Syndrome (MAS) is characterized by endocrinopathies, café-au-lait spots, and fibrous dysplasia. Bisphosphonates are the most prescribed treatment for reducing the pain but their long-term use has been associated with atypical fractures of cortical bones like femur in patients. We present a 23-year-old girl diagnosed with MAS. She had an atypical mid-shaft left femoral fracture that happened during simple walking. She also had a history of long-term use of alendronate. Because of the narrow medullary canal, we used 14 holes hybrid locking plate for the lateral aspect of the thigh to fix the fracture and 5 holes dynamic compression plate (instead of the intramedullary nail) in the anterior surface to double fix it, reducing the probability of device failure. With double plate fixation and discontinuation of alendronate, the complete union was achieved five months after surgery

Operated unstable pertrochanteric fractures leading to osteonecrosis of femoral head

2015 ◽  
Vol 2 (2) ◽  
pp. 113-116
Author(s):  
Neetin P. Mahajan ◽  
Ankit A. Marfatia ◽  
Nadir Z. Shah ◽  
F Memon ◽  
S. Mukherjee ◽  
...  
Keyword(s):  
Femoral Head ◽  
Osteonecrosis Of Femoral Head ◽  
Pertrochanteric Fractures

scholarly journals Graphene-Doped Poly (Methyl-Methacrylate) (Pmma) Implants: A Micro-CT and Histomorphometrical Study in Rabbits

2021 ◽  
Vol 22 (3) ◽  
pp. 1441
Author(s):  
Antonio Scarano ◽  
Tiziana Orsini ◽  
Fabio Di Carlo ◽  
Luca Valbonetti ◽  
Felice Lorusso
Keyword(s):  
Methyl Methacrylate ◽  
Dental Implant ◽  
Animal Studies ◽  
White Male ◽  
Biological Response ◽  
Medullary Canal ◽  
Poly Methyl Methacrylate ◽  
Titanium Surfaces ◽  
Dental Applications

Background—the graphene-doping procedure represents a useful procedure to improve the mechanical, physical and biological response of several Polymethyl methacrylate (PMMA)-derived polymers and biomaterials for dental applications. The aim of this study was to evaluate osseointegration of Graphene doped Poly(methyl methacrylate) (GD-PMMA) compared with PMMA as potential materials for dental implant devices. Methods—eighteen adult New Zealand white male rabbits with a mean weight of approx. 3000 g were used in this research. A total of eighteen implants of 3.5 mm diameter and 11 mm length in GD-PMMA and eighteen implants in PMMA were used. The implants were placed into the articular femoral knee joint. The animals were sacrificed after 15, 30 and 60 days and the specimens were evaluated by µCT and histomorphometry. Results—microscopically, all 36 implants, 18 in PMMA and 18 in DG-PMMA were well-integrated into the bone. The implants were in contact with cortical bone along the upper threads, while the lower threads were in contact with either newly formed bone or with marrow spaces. The histomorphometry and µCT evaluation showed that the GP-PMMA and PMMA implants were well osseointegrated and the bone was in direct contact with large portions of the implant surfaces, including the space in the medullary canal. Conclusions—in conclusion, the results suggest that GD-PMMA titanium surfaces enhance osseointegration in rabbit femurs. This encourages further research to obtain GD-PMMA with a greater radiopacity. Also, further in vitro and vivo animal studies are necessary to evaluate a potential clinical usage for dental implant applications.

scholarly journals Bone Marrow Adipocytes—Role in Physiology and Various Nutritional Conditions in Human and Animal Models

Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1412
Author(s):  
Katarzyna Piotrowska ◽  
Maciej Tarnowski
Keyword(s):  
Bone Marrow ◽  
Adipose Tissue ◽  
Anorexia Nervosa ◽  
Animal Models ◽  
Diabetes Mellitus Type 1 ◽  
Medullary Canal ◽  
Dietary Interventions ◽  
Nutritional Conditions ◽  
Heterogeneous Tissue

In recent years, adipose tissue has attracted a lot of attention. It is not only an energy reservoir but also plays important immune, paracrine and endocrine roles. BMAT (bone marrow adipose tissue) is a heterogeneous tissue, found mostly in the medullary canal of the long bones (tibia, femur and humerus), in the vertebrae and iliac crest. Adipogenesis in bone marrow cavities is a consequence of ageing or may accompany pathologies like diabetes mellitus type 1 (T1DM), T2DM, anorexia nervosa, oestrogen and growth hormone deficiencies or impaired haematopoiesis and osteoporosis. This paper focuses on studies concerning BMAT and its physiology in dietary interventions, like obesity in humans and high fat diet in rodent studies; and opposite: anorexia nervosa and calorie restriction in animal models.

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