Effect of Rotational Speed of Drill Bit on Surface Defects with H&E Stain in Bone Drilling (An Animal Study)
Journal Title: Majallah-i jarrāḥī-i ustukhvān va mafāṣil-i Īrān - Year 2016, Vol 14, Issue 1
Abstract
Background: Drilling of bone is used to fix the fractures with screws, wires or plates. The interaction between hole surface surface and fracture stabilization components is effective in the bonding strength of the stabilization process. During bone drilling, the temperature could increase above 47 °C and cause irreversible thermal necrosis. The surface roughness can be considered as a sign of damage of the bone cells. Methods: This study looks at the effect of rotational speed of drilling of bone on production of surface defects to determine the best processing condition for minimizing the osteonecrosis and surface defects. Seven different rotational speeds in drilling beef femur were used-in non-cooling and liquid cooling phases. In all tests the temperature was measured. After cutting samples, using hematoxylin-eosin staining were stained for detection of surface defects. Results: The lowest heat prodution was with use of liquid cooling. The drill speed of 1500 rpm with liquid cooling showed the maximum temperature of 48.5°C without production of surface debris and defects as witnessed in stained bone segment. Conclusions: Cooling application in bone drilling process avoids over and thus less thermal necrosis, which gives the lowest number of surface defects and highest quality wall surface hole.
Authors and Affiliations
Ehsan Shakouri, Fatemeh Zareh, Ahmad Majd, Hossein Haghigh Hassanali
Keywords
Related Articles
- EP ID EP351836
- DOI -
- Views 147
- Downloads 0
Prediction of Distal Femoral Mechanical Strength Following Tumor Curettage and Cementation Using Quantitative Computed Tomography-based Finite Element Method
Background: Tumor curettage and cementation is a widely-used treatment of benign bone tumors in the distal femur. While postoperative fracture is a common complication, no criterion or biomechanical data is available to...
Frequency of Paediatric Orthopaedic Injuries and Related Factors in One Year A Hospital in Northern Iran
Background & Aim: Orthopedic trauma is a common injury in children and may cause deep and permanent psychological and physical damages for the patients and their families. Recognition of the incidence rate of these injur...
Outcome of Acute Acromioclavicular Dislocation Surgery by Modified Weaver-Dunn Technique
Background: Weaver-Dunn technique is one of the common methods for treatment of acute acromioclavicular joint (ACJ) dislocation. Several modifications of this technique have been already described. Because of shortcoming...
Comparison of “Hand Grip” and “Pinch” in Orthopaedic and Non-Orthopaedic Physicians
Background: Hand function is considered as one of major indicators of health. In some of the medical specialities the power of the grip and pinch is important. In this study we wanted to see if grip and pinch power in or...
Parametric Patient-Specific Finite Element Modeling of Lumbar Spine Based on Anatomical Parameters
Background: Low back pain is one of the most common problems that force individuals to seek medical care. Since surgery is the last treatment strategy, predicting the process of conducting surgical procedures seems benef...