[Study on therapeutic effects of arthroscopic repair on medial patellar retinaculum acute injury].

Objective: To accurately define the injury position of medial patellar retinaculum with acute injury under the guiding of high frequency ultrasonography, and to study therapeutic effects of suture operation on medial patellar retinaculum in the injuried position.

Methods: From June 2009 to March 2014, there were 17 patients with acute patellar dislocation, 6 males and 11 females with average age of (16.2±6.

[Case-control study on therapeutic effects between arthroscopic medial retinaculum plication and plaster external fixation for the treatment of acute patella dislocation].

Objective: To compare therapeutic effects between arthroscopic medial retinaculum plication and plaster external fixation for the treatment of acute patellar dislocation.

Methods: From February 2006 to October 2012,29 patients with acute patellar dislocation were divided into two groups: operation group and non-operation group. The patellar dislocation duration was 2 weeks.