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The effect of shock wave therapy on patellar ligament desmitis after tibial plateau leveling osteotomy
Alissa Gallagher1, Alan R Cross, Gustavo Sepulveda
1Georgia Veterinary Specialists, Sandy Springs, GA, USA. adgall281@hotmail.com
Objective:
To determine if shock wave therapy (SWT) after tibial plateau leveling osteotomy (TPLO) has a beneficial effect on patellar ligament inflammation assessed by thickening of the ligament and ligament fiber disruption.
Study Design:
Prospective, randomized, controlled clinical trial.
Animals:
Dogs (n = 30).
Materials And Methods:
Dogs that had TPLO (July 1, 2009 to June 1, 2010) were enrolled. The affected stifle was examined by radiographs and ultrasonography preoperatively and 4, 6, and 8 weeks after TPLO. At 4 and 6 weeks, dogs in the treatment group were briefly anesthetized and treated with SWT. Patellar ligament thickness on a lateral radiographic projection was measured at 1/4, 1/2, 3/4 of the distance from origin to insertion. Ultrasound images were evaluated for patellar ligament disruption and periligament edema.
Results:
There was significant difference in thickness (P = .0264) only at the distal point; therefore, only this point was used to measure difference between the control and treatment groups. A significant difference between groups was reached at 6 and 8 weeks (P = .0059 and P = .0095, respectively) postoperatively. No significant ultrasonographic differences were found.
Conclusion:
Based on these results, SWT decreases the radiographic signs of patellar ligament desmitis.
