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Two-Stage Revision Anterior Cruciate Ligament Reconstruction Using Silicate-Substituted Calcium Phosphate
Marc Schnetzke1, Sven Vetter1, Philipp von der Linden1
1Department for Trauma and Orthopaedic Surgery, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwigshafen on the Rhine, Germany.
Arthroscopy Techniques
|February 12, 2020
Summary
Revision surgery for anterior cruciate ligament reconstruction can be complex. This study explores using a synthetic bone graft substitute, silicate-substituted calcium phosphate, as an alternative to traditional bone grafts for managing bone deficiencies.
Area of Science:
- Orthopedic surgery
- Biomaterials science
- Regenerative medicine
Background:
- Revision anterior cruciate ligament (ACL) reconstruction is challenging, especially with widened or malpositioned tunnels.
- Current bone stock restoration often relies on autologous iliac crest bone grafts, which carry significant donor site morbidity.
- Effective management of bone deficiencies is crucial for successful revision ACL surgery.
Purpose of the Study:
- To evaluate silicate-substituted calcium phosphate as a synthetic bone graft substitute for managing bone deficiencies in revision ACL reconstruction.
- To present an alternative to autologous bone grafting with potentially reduced morbidity.
Main Methods:
- The study describes a method utilizing silicate-substituted calcium phosphate for bone stock restoration in cases of widened or malpositioned tunnels.
- This approach facilitates a 2-stage revision procedure, allowing for optimal tunnel placement.
Main Results:
- Silicate-substituted calcium phosphate serves as a viable alternative for managing bone deficiencies in revision ACL surgery.
- This synthetic graft substitute offers a potential solution to the morbidity associated with autologous bone harvesting.
Conclusions:
- Synthetic bone graft substitutes like silicate-substituted calcium phosphate can effectively address bone stock deficiencies in revision ACL reconstruction.
- This method provides a promising alternative to autologous grafts, potentially improving patient outcomes and reducing surgical complications.

