and the controversy raging round this problem. Brooke (1937) of the 'Excision of Patella' fame recently followed up 54 of his cases treated 5 to 15 years previously. His faith in the efficiency of this operation was reiterated and reinforced as the result of this follow-up. An immediate controversy followed the appearance of this paper in which Max Page (1946), Bankart (1946), Tippett (1946)" a...

We present a case of superior dislocation of the patella trapped by interlocked osteophytes. Unlike previous reports, in which the mechanism resulted from a blow to the inferior pole, it is postulated that increased load on the extensor mechanism, combined with patella alta and patellofemoral osteophytes, caused locking of the knee in extension.

Four methods of surgical treatment of chondromalacia patellae have been evaluated after periods ranging from two to thirty years (average seven years), to discover the success rate, complications and indications for each. A total of 140 operations had been performed in 98 patients. Overall, satisfactory results were achieved in 25 per cent after forty shavings of the patellar cartilage, 35 per ...

Patellofemoral pain syndrome (PFPS) [2] PFPS is a diagnosis of exclusion and is defined as pain behind or around the patella. It is synonymous with the term retro-patellar pain and has in the past been referred to as chondromalacia patellae. It is caused by compressive forces in the patellofemoral joint (PFJ). PFPS is very common. Symptoms are usually provoked by climbing or descending stairs, ...

Patients with severe degenerative osteoarthritis of the hip and knee have impaired venous drainage from the juxtachondral cancellous bone across the cortex (M#{233}riel et a!. 1955; Phillips 1966; Arlet, Ficat and Sebbag 1 968; Arnoldi, Linderholm and MUssbichler 1 972). Intra-osseous phlebography will demonstrate the absence of the normal drainage pattern, with delayed emptying of the contrast...