What is the characteristic of a lacerated wound over bony surface due to blunt trauma without excessive skin crushing?

Blunt force on areas where the skin is close to bone, and the subcutaneous tissues are scanty, may produce a wound which by linear splitting of the tissues, may look like incised wound. Lacerations produced without excessive skin crushing may have relatively regular sharp margins. Ref: The Essentials of Forensic Medicine and Toxicology by Dr. K. S. Narayan Reddy, 27th edition, Page 166.