Related Experiment Video
Updated: Jul 13, 2026
07:26
Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Bone welding--a histological evaluation in the jaw.
Ronald Mai1, Günter Lauer, Eckart Pilling
1Department of Oral and Maxillofacial Surgery, Medical Faculty Carl Gustav Carus, Technische Universitaet Dresden, Fetscherstrasse 74, D-01307 Dresden, Germany. Ronald.Mai@uniklinikum-dresden.de
Summary
Ultrasound-aided insertion of Resorb-X biodegradable bone pins shows no thermal damage to bone. Histological evaluation confirms safe integration and normal bone healing, indicating an advantageous clinical application.
Area of Science:
- Orthopedic surgery
- Biomaterials science
- Histology
Background:
- Biodegradable osteosynthesis systems are advancing with new materials and application methods.
- Ultrasound-aided insertion is a novel technique for Resorb-X pins.
Purpose of the Study:
- To histologically evaluate potential thermal damage to bone from ultrasound-aided Resorb-X pin insertion.
- To assess bone-polymer interlinkage and bone structure post-insertion.
Main Methods:
- Condylar neck fractures were created in 12 sheep.
- Fractures were fixed using Resorb-X plates and pins.
- Histological evaluation was performed at 2 and 9 weeks post-operation.
Main Results:
- A tight bone-polymer interlinkage was observed at 2 weeks.
- No significant foreign body reaction, fibrous tissue interposition, or thermal necrosis was noted.
- Bone healing at 9 weeks showed normal pathomorphological characteristics, with no alterations from the insertion process.
Conclusions:
- Ultrasound-aided pin insertion does not cause cellular reactions or thermal damage in bone.
- This method represents a safe and effective advancement for biodegradable osteosynthesis.
- The technique offers a clear clinical advantage due to its fast and easy application.
Related Concept Videos
01:03Structural Joints: Fibrous Joints
Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints.
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...
01:22Sutures of the Skull
The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
01:17Gross Anatomy of Bone
The two main features of a long bone are the diaphysis and the epiphysis.
The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The walls of the diaphysis are composed of dense and hard compact bone made of numerous osteons — the functional unit of the compact bone. The hollow region in the diaphysis is called the medullary cavity, which harbors the bone marrow. In infants and children, this marrow cavity is filled with red marrow, whereas in adults, it...
The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The walls of the diaphysis are composed of dense and hard compact bone made of numerous osteons — the functional unit of the compact bone. The hollow region in the diaphysis is called the medullary cavity, which harbors the bone marrow. In infants and children, this marrow cavity is filled with red marrow, whereas in adults, it...
01:27Compact Bone
Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...