To acknowledge the importance of precise reduction of articular surface of tibial plateau fractures and to make a guideline of treatment by evaluating outcomes and effectiveness of using locking plate and minimally invasive percutaneous osteosynthesis technique.

Twenty-nine patients who underwent surgery for tibial plateau fracture from November 2005 to March 2010 were enrolled with 12 months follow-up in a retrograde manner. The Shatzker classification was used to classify fractures, and we used lateral submeniscal approach to make a precise reduction of articular surface. Radiologic evaluation was determined by presence of bone union, malalignment, and reduction loss or joint depression of articular surface. Post-operative infection, time of active movement of the knee joint, time of partial weight loading, and range of motion (ROM) of knee joint were evaluated. Lysholm Knee Score was used for functional evaluation.

Bone union took place in all but one case that developed osteomyelitis. Angulation deformity of more than 10° and reduction loss or joint depression of more than 5 mm were not observed. There was one case of osteomyelitis and one case of superficial surgical site infection. There were satisfactory clinical results, with an average time of active knee joint movement and weight loading of 6 weeks. The average ROM of knee joint was 125° in the last follow up. As for functional evaluation using Lysholm Knee Score, cases showed an average Lysholm Knee Score of 94 which was a satisfactory result.

In cases of tibial plateau fractures, if a surgeon accurately reduces the articular surface of joint and use minimally invasive locking plate it will help in bone union biologically, reducing the incidence of soft tissue injuries, and biomechanically maintaining the articular surface of the joint, proving itself to be a useful method of treatment.