The radiological findings in five patients with features of the ischio-pubic-patella syndrome are presented. All of these patients have genetic/cytogenetic evidence of campomelic dysplasia. The ischio-pubic-patella syndrome appears to be a distinct entity from the small patella syndrome as first described by Scott and Taor. The findings in the five presented cases with radiological evidence of ...

Patellofemoral arthroplasty is a treatment option for the relatively young patient with isolated patellofemoral osteoarthritis where conservative treatment has failed. However, despite of reasonable long term results, complications could be challenging. Loosening of the polyethylene patella component is a serious complication and has been reported in 2%. Dislocation of the polyethylene patella ...

Femoral neuropathy may be associated with various etiologies and can cause severe walking disability. We present the case of a 25-year-old woman who underwent surgical repair for a patella fracture and complained of lower extremity pain, paresthesia, and weakness postoperatively. Electromyography and magnetic resonance imaging (MRI) revealed partial peripheral neuropathy of the left femoral ner...

Metastasis of any kind to the patella is rare. Metastasis to the patella causing symptoms representing the first presentation of underlying malignancy is rarer still. We report the case of a previously fit and well 74-year-old male presenting with left anterior knee pain. The initial diagnosis was osteoarthritis but after continued symptoms a diagnosis of solitary patella metastasis from a prim...

Bone stores of lead accrued from environmental exposures and found in most of the general population have recently been linked to the development of hypertension, cognitive decrements, and adverse reproductive outcomes. The skeleton is the major endogenous source of lead in circulating blood, particularly under conditions of accelerated bone turnover and mineral loss, such as during pregnancy a...

A 44-year-old woman presented following minor trauma to her right knee. While dancing she externally rotated around a planted foot and felt sudden pain in her right knee. She presented with her knee locked in extension with a "dorsal fin" appearance of the soft tissues tented over the patella. This was diagnosed as a rare case of an intraarticular patella dislocation, which was rotated 90 degre...

The ideal treatment for avulsion fractures of the inferior pole of the patella has not yet been identified. The options include internal fixation of the pole fragment and resection of the avulsed fragment along with the repair of patellar ligament to the patella. The purpose of the present study was to evaluate the result of pole resection with repair of patellar ligament with augmentation by P...

We examined radiographs of the inferior pole of the patella in seven juvenile athletes diagnosed as having Sinding-Larsen-Johansson disease (SLJD) and discussed the etiology of the syndrome. Eight knees had tenderness at the inferior pole of the patella accompanied by radiographic abnormalities. A regular or irregular calcification was found at the inferior pole of the patella in three knees; c...

The patella (kneecap) exhibits multiple evolutionary origins in birds, mammals, and lizards, and is thought to increase the mechanical advantage of the knee extensor muscles. Despite appreciable interest in the specialized anatomy and locomotion of palaeognathous birds (ratites and relatives), the structure, ontogeny and evolution of the patella in these species remains poorly characterized. Wi...