Rectangular recession trochleoplasty for treatment of patellar luxation indogs and cats

Trochleoplasty is a fundamental component of surgical treatment for patient s with inadequate trochlear depth associated with patellar luxation. Tradit ional methods of trochleoplasty include trochlear resection, chondroplasty and wedge recession trochleoplasty. Each technique has its benefits and lim itations. Rectangular recession trochleoplasty (RRT) is a new technique tha t builds upon the strengths of its predecessors while minimizing their limi tations. Rectangular recession utilizes a rectangular osteochondral autogra ft that is harvested from the trochlear groove and replaced into its recipi ent bed. Unlike wedge recession, the autograft surfaces are compressed and buttressed within the recipient bed, resulting in secure implantation of th e autograft. Rectangular recession achieves maximal preservation of hyaline articular cartilage while minimizing exposure of abrasive subchondral bone . Rectangular recession can be performed on dogs and cats as small as 3 kg and has been clinically effective in treating over 100 cases of patellar lu xation.