Demineralized Bone Matrix Fiber Allograft Augmentation in Minimally Invasive Hallux Valgus Surgery

Area of Science:

• Orthopedic Surgery
• Regenerative Medicine
• Biomaterials

Background:

• Minimally invasive surgery (MIS) for hallux valgus correction offers good outcomes.
• Limited bone formation can occur despite successful union in MIS hallux valgus.
• This study evaluated demineralised bone matrix fibre allograft (DBM) for enhanced bone formation.

Purpose of the Study:

• To investigate if DBM allograft augmentation improves radiographic bone formation compared to standard percutaneous technique in hallux valgus surgery.
• To assess the impact of DBM on radiographic healing and patient-reported outcomes.

Main Methods:

• Retrospective comparative study of 215 patients undergoing percutaneous hallux valgus correction.
• Two groups: DBM allograft augmentation (DBM group) vs. standard technique (NDBM group).
• Radiographic healing assessed at 6 weeks, 3 months, and 6 months; patient outcomes measured using MOXFQ, EQ-5D-5L, and VAS Pain.

Main Results:

• DBM group showed significantly improved radiographic union scores at 3 and 6 months (P = .005-.027).
• No significant differences in final patient-reported outcomes or radiographic deformity correction between groups.
• DBM was associated with a statistically, but not clinically, significant improvement in PROMs, with cautious interpretation due to baseline imbalance and loss to follow-up.

Conclusions:

• DBM allograft augmentation was associated with higher radiographic healing scores and a greater proportion of united bone at scheduled time points.
• Further research is needed on other biological adjuncts for optimizing healing in specific patient populations.
• The additional cost of DBM augmentation was $1780 per procedure.