Background Patellar (knee cap) dislocation occurs when the patella disengages completely
from the trochlear (femoral) groove. It affects up to 42/100,000 people, and is most prevalent …

Purpose The aim of the study was to perform a systematic review and best knowledge
synthesis of the present literature concerning biomechanical risk factors for developing first …

Background: Anatomic factors, including patella alta, increased tibial tubercle–trochlear
groove (TT-TG) distance, rotational deformities, and trochlear dysplasia, are associated with …

Background: Previous studies have reported variable rates of recurrent lateral patellar
instability mainly because of limited cohort sizes. In addition, there is currently a lack of …

Background: First-time lateral patellar dislocations have historically been treated with a
nonoperative approach; a clinical tool to predict patients who are most likely to redislocate …

Purpose The purpose of this study was to investigate the Danish population as a whole from
1994 to 2013 to find the incidence of acute and recurrent patellar dislocation. Methods The …

Purpose Our primary purpose was to evaluate whether complications have increased or
functional outcomes have changed as medial patellofemoral ligament (MPFL) reconstruction …

Purpose The goal of this study was to perform a comparative review to determine whether
there is a significant difference in the rate of repeat dislocation and clinical outcome between …

Purpose Trochleoplasty is a relatively rare operation with few published results and it
remains a technically demanding procedure which requires careful patient selection. The …

Purpose To conduct a systematic review of meta-analyses comparing nonoperative and
operative treatment of patellar dislocations to elucidate the cause of the variation and to …