scholarly journals Gamma3 nail with U-Blade (RC) lag screw is effective with better surgical outcomes in trochanteric hip fractures

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Seung-Beom Han ◽  
Jae-Kyun Jung ◽  
Chul-Young Jang ◽  
Dae-Kyung Kwak ◽  
Jeong-Woo Kim ◽  
...  
Keyword(s):  
Hip Fractures ◽  
Surgical Outcomes ◽  
Lag Screw ◽  
Gamma3 Nail

scholarly journals Are Cephalomedullary Nail Guides Accurate? A Case Report of an Unexpected Complication After Nailing an Intertrochanteric Femoral Fracture

2018 ◽  
Vol 9 ◽  
pp. 215145851875779
Author(s):  
Rayan Fairag ◽  
Fahad H. Abduljabbar ◽  
Alex Page ◽  
Ron Dimentberg
Keyword(s):  
Case Report ◽  
Carbon Fiber ◽  
Intramedullary Nailing ◽  
Hip Fractures ◽  
Femoral Fracture ◽  
Intraoperative Imaging ◽  
Unusual Complication ◽  
Cephalomedullary Nail ◽  
Lag Screw ◽  
Intertrochanteric Femoral Fracture

Intramedullary nailing is the mainstay of treatment for unstable intertrochanteric hip fractures. Various complications have been described with the use of these nails. We report an unusual complication whereby the lag screw completely missed the nail. We hypothesize that this previously unreported complication may be related to a specific flexible carbon fiber aiming device. Surgeon awareness and thorough intraoperative imaging are crucial to avoiding this complication.

Biomechanical analysis of the treatment of intertrochanteric hip fracture with different lengths of dynamic hip screw side plates

2020 ◽  
Vol 28 (6) ◽  
pp. 593-602
Author(s):  
Cheng-Chi Wang ◽  
Cheng-Hung Lee ◽  
Ning-Chien Chin ◽  
Kun-Hui Chen ◽  
Chien-Chou Pan ◽  
...  
Keyword(s):  
Hip Fractures ◽  
Dynamic Hip Screw ◽  
Biomechanical Analysis ◽  
Element Analysis ◽  
Side Plate ◽  
Lag Screw ◽  
Pull Out ◽  
Cortical Screw ◽  
Hip Screw ◽  
Biomechanical Effect

BACKGROUND: Dynamic hip screw (DHS) is a common implant used to treat stable-type intertrochanteric hip fractures. There are many factors that can affect the success rate of the surgery, including the length of side plates. It is therefore important to investigate the biomechanical effect of different DHS side plates on bones. OBJECTIVE: In order to reduce the likelihood of an implant failure, the aim of this study was to use finite element analysis (FEA) to investigate and understand the effect of side plates with different lengths in DHS. METHODS: In this FEA study, a 3D model with cortical bone, cancellous bone, side plate, lag screw, and cortical screws to simulate the implantation of DHS with different lengths of side plate (2-hole, 4-hole, and 6-hole) for intertrochanteric hip fractures was constructed. The loading condition was used to simulate the force (400 N) on the femoral head and the stress distribution on the lag screw, side plate, cortical screws, and femur was measured. RESULTS: The highest stress points occured around the region of contact between the screw and the cortical bones. The stress on the femur at the most distal cortical screw was the greatest. The shorter the length of the side plate, the greater the stress on the cortical screws, resulting in an increased stress on the femur surrounding the cortical screws. CONCLUSIONS: The use of DHS with 2-hole side plate may increase the risk of side plate pull-out. The results of this study provide a biomechanical analysis for selection of DHS implant lengths that can be useful for orthopaedic surgeons.

EFFECTS OF DIFFERENT LATERAL FEMORAL WALL THICKNESSES IN INTERTROCHANTERIC HIP FRACTURE TREATED WITH DYNAMIC HIP SCREW

2019 ◽  
Vol 19 (02) ◽  
pp. 1940022
Author(s):  
CHENG-CHI WANG ◽  
CHENG-HUNG LEE ◽  
KUN-HUI CHEN ◽  
CHIEN-CHOU PAN ◽  
KUO-CHIH SU
Keyword(s):  
Hip Fractures ◽  
Stress Shielding ◽  
Simulation Models ◽  
Lateral Wall ◽  
Dynamic Hip Screw ◽  
Shielding Effect ◽  
Element Analysis ◽  
Lag Screw ◽  
Hip Screw ◽  
Biomechanical Effect

Dynamic hip screw (DHS) is commonly used for stable-type intertrochanteric hip fractures. The importance of lateral femoral wall has been mentioned while treating intertrochanteric hip fractures with DHS. The aim of this study was mainly to investigate the biomechanical effect of different thickness of lateral femoral wall using finite element analysis (FEA). This study constructed FEA simulation models for five different lateral femoral wall thicknesses, and demonstrated the stress distribution on the femoral bone, the cortical screws, the cancellous bone around the lag screw, and the lag screw. The main results showed that when the DHS is implanted, less stress will be distributed at the implantation site on the femur due to the stress-shielding effect. The stress on the cortical screws will be greater at the junction of the cortical screws and the cortical bone. Intertrochanteric hip fractures with a thinner lateral wall thickness may cause higher stress on the femur after DHS is implanted.

The effect of renal function on surgical outcomes of intracapsular hip fractures with osteosynthesis

2013 ◽  
Vol 134 (1) ◽  
pp. 39-45 ◽  
Author(s):  
Liang-Tseng Kuo ◽  
Su-Ju Lin ◽  
Wei-Hsiu Hsu ◽  
Kuo-Ti Peng ◽  
Chun-Liang Lin ◽  
...  
Keyword(s):  
Renal Function ◽  
Hip Fractures ◽  
Surgical Outcomes

scholarly journals A novel technique for the fixation of inter-trochantieric hip fractures: A telescoping lag screw

2018 ◽  
Vol 15 (2) ◽  
pp. 690-694 ◽  
Author(s):  
Devin M. Jagow ◽  
Shahan V. Yacoubian ◽  
Edward J. McCrink ◽  
Stephan V. Yacoubian
Keyword(s):  
Hip Fractures ◽  
Novel Technique ◽  
Lag Screw

scholarly journals Outcomes of Geriatric Hip Fractures Treated with AFFIXUS Hip Fracture Nail

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Ahmed Mabrouk ◽  
Mysore Madhusudan ◽  
Mohammed Waseem ◽  
Steven Kershaw ◽  
Jochen Fischer
Keyword(s):  
Retrospective Study ◽  
Hip Fracture ◽  
Hip Fractures ◽  
Deep Infection ◽  
Acute Hospital ◽  
Activity Level ◽  
Systemic Complications ◽  
Lag Screw ◽  
The Mean

Geriatric hip fractures are one of the commonest fractures worldwide. The purpose of this study was to report the outcomes of a series of unstable geriatric hip fractures treated with AFFIXUS hip fracture nail. A retrospective study of 100 unstable geriatric hip fractures treated with AFFIXUS hip fracture nail is presented. The mean follow-up duration was 8 months (range 3–32). Of the patients 83% were female. The average age was 85 years. The fracture was treated by closed reduction and intramedullary fixation. The mean acute hospital stay was 17.6 days. Systemic complications occurred in 29 patients (29%) and local complications in 3 patients (3%) including lag screw cutout in one patient (1%), lag screw backout in one patient (1%), and deep infection in one patient (1%). Mechanical failures and periprosthetic fractures were not observed in our series. Fractures united in all patients. Preinjury activity level was recovered in 78% of the patients. The results of AFFIXUS hip fracture nail were satisfactory in most elderly patients. The unique design of the lag screw and its thread spacing had effectively reduced cut-out rate.

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