The periosteum: its function reassessed

Area of Science:

• Orthopedics
• Regenerative Medicine
• Surgical Innovation

Background:

• The periosteum's role in bone regeneration has been debated since early 20th-century studies.
• Clinical observations, particularly from developing countries, offer insights into periosteal function in fracture healing.
• Understanding periosteal mechanics is essential for effective fracture management and reconstructive surgery.

Purpose of the Study:

• To review experimental evidence on the periosteum's function in bone repair.
• To clarify the periosteum's role in fracture union and revascularization.
• To highlight the clinical implications of periosteal integrity in various orthopedic conditions.

Main Methods:

• Review of historical and contemporary experimental studies on periosteal function.
• Analysis of clinical data related to fracture healing and untreated bone defects.
• Examination of the periosteum's contribution to mechanical stability and vascular supply.

Main Results:

• Periosteum requires contact with a hematoma and bone to exhibit osteogenic properties.
• The periosteum serves as a critical mechanical link between bone fragments in fractures.
• Periosteal continuity is essential for revascularization, and its loss can lead to fibrous union.
• Extensive periosteal destruction in untreated osteomyelitis results in significant bone segment loss.

Conclusions:

• The periosteum is indispensable for successful fracture healing, providing both structural support and vascularization.
• Techniques that compromise periosteal integrity, such as total excision, impede new bone formation.
• Clinical outcomes underscore the importance of preserving the periosteum in fracture treatment and managing bone defects.