INVESTIGATION OF THE EFFECTIVENESS AND SAFETY OF MODULAR PROSTHETIC NAIL COMBINATION IN THE PREVENTION OF FRACTURE RISK IN SCREW HOLE DEFECTS FOLLOWING PROXIMAL FEMORAL NAIL REMOVAL: A COMPARATIVE EXPERIMENTAL STUDY
Journal Title: Kocatepe Medical Journal - Year 2021, Vol 2, Issue 22
Abstract
OBJECTIVE: Proximal femoral nail (PFN) is a treatment of hip fractures. In case of non-union or hip arthrosis, the implant is removed, and prosthetic surgery is performed. This study aims to evaluate the stress distributions on the distal locking screw holes of the prosthesis applied after PFN removal and subtrochanteric fracture risk in a newly developed nail-prosthesis combination and revision hip prosthesis. MATERIAL AND METHODS: 6 (Synbone 2162) artificial femur models were used. The modular PFN-prosthesis model was placed in these femur models. Neck screws were removed from all. Femoral neck was cut. PFN was removed from 3 models and revision stem was replaced. In 3 models, the modular PFN-prosthesis was attached. The stress on the distal screw hole was examined with the axial compression test. RESULTS: In this study, we performed on 6 artificial femurs, a fracture in the femur at 200N and above forces was detected in the control group. When 300N and above force was applied in the experimental group, a fracture in the femur was detected. CONCLUSIONS: Stress distribution and fracture risk in residual holes were evaluated after PFN removal in artificial femurs. The newly designed modular nail prosthesis combination (MNP) was found to have a lower risk of fracture than revision prosthesis due to the presence of screws in the distal holes.
Authors and Affiliations
Mehmet Nuri KONYA, Recep ALTIN, Uğur YÜZÜGÜLDÜ
Keywords
Related Articles
- EP ID EP697228
- DOI https://doi.org/10.18229/kocatepetip.697319
- Views 111
- Downloads 0
EFFECT OF SUBCLINICAL HYPOTHYROIDISM ON BIOCHEMICAL PARAMETERS IN PATIENTS WITH TYPE 2 DIABETES MELLITUS
OBJECTIVE: Subclinical hypothyroidism is a biochemical definition with elevated TSH (thyroid stimulating hormone) levels while free thyroid hormone levels are normal. Type 2 DM (diabetes mellitus) patients frequently hav...
HOW EFFECTIVE IS THE EVALUATION OF VASCULAR LOOP COMPRESSION FOR THE 7TH-8TH NERVE COMPLEX IN EXPLAINING NEURO - OTOLOGICAL SYMPTOMS ?
OBJECTIVE: The goal of this research study was to investigate of whether the radiological proof of neurovascular compression of the vestibulocochlear nerve (VCN) was pathognomonic for hearing loss and tinnitus using “3D...
RE-EVALUATION OF COPY NUMBER VARIATIONS IN NEUROPSYCHIATRIC DISORDERS
OBJECTIVE: Chromosome segment variations involving more than 50 bases are called Copy Number Variations (CNV). Chromosomal microarray method is used to detect CNVs in a routine practice. Chromosomal microarray analysis (...
EFFECTS OF CARDIAC REHABILITATION ON FUNCTIONAL EXERCISE CAPACITY, QUALITY OF LIFE AND DEPRESSION
OBJECTIVE: Cardiac Rehabilitation Program (CRP) is a comprehensive program developed specifically for the patients aims to improve functional exercise capacity, quality of life, and psychosocial status. This study aims t...
COMPARISON OF THE EFFECTS OF QUADRICEPS AND GASTROCNEMIUS MUSCLE TRAINING ON ACTIVITIES OF DAILY LIVING IN COPD
OBJECTIVE: Chronic Obstructive Pulmonary Disease (COPD) has symptoms such as impaired exercise tolerance and decreased quality of life. In this study, the effects on exercise performance and quality of life in COPD patie...