With each added degree of inclination, one gains 0.68 mm of tibial tunnel length.

Drilling a tibial tunnel at 40 degrees yields an average tunnel length of 45.442.18 mm. In conclusion, the BTA technique is a reliable technique for ACL reconstruction. Given our prior assumption of the STC being 45 mm, the graft-50 rule suggests a 45-mm tibial tunnel if using 25-mm bone plugs. Obviating the patellar bone plug harvest should eliminate the risk of perioperative patellar fracture and theoretically will mitigate donor site morbidity and kneeling pain, 2 of the most commonly cited complications of the use of BTB autografts for ACL reconstruction. The advantages of this technique include faster graft harvest and preparation. At the inferior pole of the patella, electrocautery is used to harvest the tendon from the patella. In the CPT Index, look for Bone Graft/Any Donor Area referring you to 20900.

If the tendon is >45В mm and the construct at least 70В mm, then we proceed with the BTA technique. Endoscopic guides were used to create the tibial and femoral tunnels. When the femoral tunnel is drilled through and in line with the correctly placed tibial tunnel, and when the back wall of the femoral tunnel is 1 mm thick, the tension pattern in the graft. The length of the patellar tendon and graft construct is then measured. A standard tibial tubercle bone plug is harvested. The middle third of the patellar tendon is used with a typical width of 10 to 11В mm. The advancement of this within the femoral tunnel and with use of. To differentiate this graft, we have coined the term BTA, for bone-tendon-autograft. The Beeth needle was then used to advance the prior prepared reconstruction ACL graft. Therefore, a single bone plug technique for ACL reconstructions was developed to mitigate the disadvantages of the BTB technique. However, the primary disadvantages of this technique include postoperative kneeling pain, the risk of perioperative patellar fracture, and graft-tunnel mismatch. AHA Coding Clinic for HCPCS - 2020 Issue 3 Ask the Editor Bone grafting of femur and tibial tunnels. The graft is passed through these tunnels and secured with screws to replace the original. The bone-tendon-bone (BTB) autograft is widely used for anterior cruciate ligament (ACL) reconstruction. Tunnels are created by drilling through the shin bone and thigh bone.

Tibial tunnel bone allograft cpt