Rotator Cuff Repair With a Novel Interpositional Allograft Augmentation.

Area of Science:

• Orthopedic Surgery
• Biomaterials Science
• Regenerative Medicine

Background:

• Rotator cuff tears are common, with many surgical repairs failing to heal adequately at the tendon-enthesis junction.
• Adjunctive strategies are being developed to improve the structural integrity and healing of rotator cuff repairs.
• A biphasic, demineralized allograft bone implant is a recent innovation aimed at enhancing enthesis healing.

Purpose of the Study:

• To describe the technique and potential applications of a biphasic allograft for augmenting arthroscopic rotator cuff repair.
• To highlight the potential benefits of this graft in specific patient populations and surgical scenarios.

Main Methods:

• The technique involves preparing the greater tuberosity footprint and placing suture anchors.
• A folded biphasic allograft is delivered arthroscopically and secured percutaneously with spinal needles.
• The allograft is then incorporated into a standard double-row transosseous-equivalent rotator cuff repair.

Main Results:

• A prior study using a similar implant showed significant patient-reported outcome improvements at one year post-surgery.
• A meta-analysis indicated a reduced retear rate in patch-augmented rotator cuff repairs compared to isolated repairs.

Conclusions:

• Tissue augmentation with this biphasic allograft can be efficiently performed to promote biologic healing.
• This allograft may be a viable option for rotator cuff repairs with deficient bone stock, in revision cases, or when native healing is impaired.
• Further clinical research is necessary to fully evaluate the outcomes associated with this specific allograft.