This paper describes the association of double patellae of an unusual type with multiple epiphysial dysplasia in three siblings. The patellae are ofthe type first described by BUttner(l925) and Haenisch (1925). Other examples have been described by Paas (1931), Schwarz (1932), Weber (1935, cited by Lodes 1949), Gorzawski (1937), Marquardt (1938) and Lodes (1949). The abnormality common to these...

We report a case of a 34-year-old man who had an acute gouty attack with tophi around the accessory bone of the bipartite patella with intra-osseous lesions. As the symptoms did not respond to conservative treatments, the patient was treated surgically. Arthroscopy revealed urate crystals surrounded by inflammatory synovitis on the surface of the bipartite patella. Arthrotomy exposed the abunda...

BACKGROUND One complication of total knee arthroplasty (TKA) is patella baja (PB). Patellar tendon shortening and joint line elevation are two main causes of PB. The purpose of this study was to determine the incidence of PB before and after TKA by measuring the patellar height and provide evidence for choosing a suitable index. METHODS In total, 256 consecutive patients who underwent primary...

OBJECTIVES To determine the effectiveness of eccentric exercise (EE) programmes in the treatment of common tendinopathies. DATA SOURCES Relevant randomised controlled trials (RCTs) were sourced using the OVID website databases: MEDLINE (1966-Jan 2006), CINAHL (1982-Jan 2006), AMED (1985-Jan 2006), EMBASE (1988-Jan 2006), and all EBM reviews--Cochrane DSR, ACP Journal Club, DARE, and CCTR (Jan...

Patella luxations occur frequently in dogs (primarily medial (MPL) [1]) and less commonly in cats [2]. It is normally seen in small breed dogs but is becoming more common in dogs such as the Labrador retriever. It can be unilateral or bilateral (50-65%) of cases. Both conservative and surgical methods are used for correction of patella luxation and this decision-making usually depends on the se...

The patella plays an important role in the knee joint extension, and a patella fracture requires surgical treatment when it is accompanied by displacement of bone fragments and a joint surface gap. In patella fractures, there is disruption of the soft tissue structures that support the knee extension mechanism. We use a method of percutaneous cerclage wiring to fix the patella and include the p...

Knee osteoarthritis (OA) is a prevalent disease afflicting elderly people. As the knee joint is tri-compartmental, numerous radiographic patterns of disease are possible. The patellofemoral joint (PFJ) is one of the most commonly affected compartments. Although PFJ OA is frequently observed, this particular disease sub-group has gone largely unrecognised. Recent research suggests that not only ...

OBJECTIVE To quantify the role patellofemoral and tibiofemoral kinematics may play in development of anterior knee pain (AKP) in individuals with cerebral palsy (CP). DESIGN Case-control. SETTING Clinical research center. PARTICIPANTS Knees from individuals with diagnosed CP (n=20) and control knees (n=40) were evaluated. Controls were matched for sex and age based on the group average. M...

Patellar fracture and anterior knee pain remain major complications after Total Knee Arthroplasty (TKA). Patient-specific finite element (FE) models should help improve understanding of these complications through estimation of joint and bone mechanics. However, sensitivity of predictions on modeling techniques and approaches is not fully investigated. In particular, the importance of patellar ...