Per patient
Treating physicians denoted fused or not fused based on their subjective individual evaluation for 42 cervical and 41 lumbar patients. Five patients (2 cervical; 3 lumbar) achieved fusion at 6 months and did not undergo 12-month follow-up. At 12 months, 88.1% (n = 37/42) of cervical and 97.6% (n = 40/41) of lumbar patients achieved fusion (Table Fusion ratesBolded numbers indicate overall successful per-level and per-patient fusion rates