PURPOSE The medial patellofemoral ligament (MPFLL)/lateral patellar retinaculum (LPR) ratio were assessed in knees as a means to detect patellar malalignment. We also aimed to evaluate the prevalence of the various types of trochlear dysplasia in patients with patellar malalignment. MATERIALS AND METHODS After approval of our institutional ethics committee, we conducted a retrospective study ...

INTRODUCTION TO PATELLAR FRACTURES ASSESSMENT OF PATELLAR FRACTURES Patellar Fracture Injury Mechanisms Injuries Associated with Patellar Fractures Signs and Symptoms Imaging and Other Diagnostic Studies Classification Outcome Measures PATHOANATOMY AND APPLIED ANATOMY RELATING TO PATELLA FRACTURES Osseous Anatomy Arterial Blood Supply Soft Tissue Anatomy BIOMECHANICS OF THE EXTENSOR MECHANISM P...

The purpose of this study was to correlate the trochlear shape and patellar tilt angle and lateral patellar displacement at rest and maximal voluntary isometric contraction (MVIC) exercises during open (OKC) and closed kinetic chain (CKC) in subjects with and without anterior knee pain. Subjects were all women, 20 who were clinically healthy and 19 diagnosed with anterior knee pain. All subject...

The management of recalcitrant patellar tendinopathies in the athletic population can be vexing to both the surgeonand patient. To date the majority of treatments for this disease pathology are non-surgical in nature. When surgicalintervention is required, open debridement and/or tendon take-down with repair has been necessary. We proposea novel technique for the treatment of insertional patell...

BACKGROUND Although some studies have reported an increased incidence of patellar dislocations within active populations, few studies have reported incidence rates and examined risk factors for this injury. PURPOSE To examine the incidence of patellar dislocation injuries and the influence of demographic and occupational risk factors associated with injury among active-duty United States (US)...

BACKGROUND Patellar tendinopathy identified by imaging modalities has been reported in asymptomatic athletes and associated with tendon-related symptoms. However there is little data in community-based populations. The aim of this cohort study was to examine the prevalence of magnetic resonance imaging (MRI) defined patellar tendinopathy, the factors associated with this condition, and whether ...

INTRODUCTION Medial patellar subluxation is usually seen after lateral retinacular release. Spontaneous medial subluxation of the patella is a very rare condition. There are few reports in the literature on the pathophysiology of iatrogenic medial patellar subluxation. To our knowledge, there are no reports of the pathophysiology of non-iatrogenic medial patellar subluxation in the English lite...

Patellar tendinopathy is a clinical symptom of patellar tendons characterized by local pain in the front knee joint. It common among basketball and volleyball players. Patients with may exhibit... | Find, read cite all research you need on Tech Science Press

Background: Patellar resurfacing after routine arthroplasty remains controversial. Few studies have specifically examined the effect of patellar resurfacing on outcomes after resection of the distal part of the femur and reconstruction with a megaprosthesis. Our objective was to compare the outcomes of megaprosthesis reconstructions of the distal part of the femur with and without patellar resu...

This article reviews the clinical entity of medial patellar subluxation, including relevant anatomic and biomechanical factors. Most cases of medial patellar subluxation occur as a late complication of lateral retinacuiar release. Symptoms include pain, disability, crepitus, and intermittent swelling. Clinical signs include subluxation of the patella with manual medial glide, an observable defe...