The International Tissue Technical Advisory Group (ITTAG) was established in 2017. ITTAG focuses on tissues, apart from ocular tissues, across all regions. It provides direction and support to the activities of the European Tissue Technical Advisory Group (ETTAG) and the North American Tissue Technical Advisory Group (NATTAG).
The Membership comprises Technical Experts in human tissues and Representatives appointed by organizations involved in tissue banking.
In addition to members, liaisons attend meetings. Liaisons are from regulatory authorities or other groups interested in ISBT 128.
Other persons interested in the work of the ITTAG may attend meetings as observers at the discretion of the chairperson.
SUMMARY OF RECENT ACTIVITY
ITTAG discussed the naming convention previously adopted for grafts that contain a tendon connected to a bone. In the ISBT 128 Standard Terminology, tissue products that contain a tendon are described using a Class Name that begins with the word “TENDON” followed by the name of the tendon (e.g., PATELLAR, ACHILLES), and when needed, followed by the description of the type of bone attached to the tendon or the position of the tendon (e.g., BISECTED BONE BLK, POSTERIOR). Recently, it has been inquired if the size of the bone—attached to the tendon—should be considered when constructing these product descriptions. In cases where the bone is significantly large (e.g., when the entire tibia is attached to the patellar tendon), it has been suggested to change the order of terms in the Class Name and describe the bone first, then the tendon (e.g., TIBIA WITH PATELLAR TENDON instead of TENDON, PATELLAR WITH TIBIA). It was mentioned that it is important for the end user to know what the use is for the tissues. ICCBBA will evaluate how this change in terminology would impact backward compatibility.
ITTAG reviewed the current usage of “bisected” and “half” to ensure a consistent approach is being followed. The term “bisected” is used as a product descriptor within four Class Names in the Soft Tissue Bounded List. All four Class names follow the same pattern: TENDON, type of tendon, BISECTED, and type of bone attached to the tendon. The group agreed to leave the terminology as it is - “bisected” for tendons and “half” for bones.
ITTAG reviewed the paper “Standardization in Tissue Labeling (Draft B)” that proposes the introduction of an international standardized label for tissue products that is electronically-readable and eye-readable, where critical information is consistently printed in the same location. This paper explains the need for and importance of standardization in tissues.
ITTAG MEMBER LIST
Jinyoung Jeong – Asia Pacific Association of Surgical Tissue Banks
John Morri – Biotherapeutics Association of Australasia
Oscar Schwint – Asociación Latinoamericana de Bancos de Tejidos
David Tinker – American Association of Tissue Banks
ICCBBA Staff Liaison