Table 3: Indications and contraindications for patellofemoral arthroplasty.
| Indications |
| Severe isolated or posttraumatic PFOA |
| Age more than 40. |
| Patellar subluxation or patellar tilt |
| Trochlear dysplasia |
| Failure of patellar unloading procedures (e.g Maquet osteotomy) |
| Contraindications |
| Tibiofemoral OA or menisci injuries |
| PF or limb malalignment |
| Knee instability |
| Acute infection or CRPS |
| BMI > 30 or quadriceps atrophy (relative contraindications) |