Table 2.

Advantages and Disadvantages

Advantages	Disadvantages
Patient-specific guide is unique to the patient’s unique bony anatomy.	Increased time to surgery pending the manufacturing of patient-specific guide
Three-dimensional preoperative planning allows the surgeon to determine accurately the location of saw blade cuts, depth of cuts, size of wedge, and screw sizes prior to surgery.	May require relatively larger incision to fit the patient-specific cutting guide correctly onto tibia
Increased precision of correction	Lack of freedom to remove osteophytes or bony irregularities as the patient-specific guide is created according to preoperative computed-tomography scan
A variety of fixating guide sizes are available intraoperatively based on correction target.
Decreased operative time
Decreased fluoroscopy exposure
Healing generally occurs within 4 weeks postoperatively.