Effect of cement mantle geometry on the outcome of the cemented charnley femoral stems. A radiographic study

In this study, a retrospective radiological analysis of 112 [95 patients] cemented total hip arthroplasties operated between 1987 and 1994 to determine the relationship between the radiographic variables of the cement mantle geometry in the initial radiographs and the long- term radiographic outcome of cemented femoral components. The results of this study emphasized the importance of the proper selection of the femoral component for implantation with cement in total hip replacements. Templates should be used and a careful preoperative planning should be done to ensure an optimal distal cement mantle. Additionally, the use of distal spacers [centralizers] was suggested, which could help in providing an adequate circumferential cement mantle

comparison between the results of plating and intramedullary nailing for treatment of humeral shaft fractures

The aim of this study was to compare the results of intramedullary nailing [IMN] and plating in the treatment of humeral shaft fractures with a particular emphasis on the type and frequency of complications encountered with each technique. Thirty-seven patients were included in the study. Eighteen fractures were fixed with 4.5 mm, AO design, plates and 19 fractures were fixed with an antegrade humeralinter- locking nail. The main clinical assessment measures were shoulder and elbow functions, radial nerve recovery and presence of infection. The radiological assessment was based on fracture alignment, healing time, delayed and nonunion. It was suggested that both plating and IMN provide a satisfactory fixation for humeral shaft fractures with ultimate fracture healing, however IMN is associated with more complications

Charnley Ogee-flanged cup in primary total hip arthroplasty for acetabular dysplasia

Ogee-flanged socket was introduced by Sir John Charnley for use in low-friction hip arthroplasty. The results of 18 primary total hip arthroplasties performed in 17 patients with moderate congenital acetabular dysplasia were reviewed. Charnley total hip prosthesis including a non-modular femoral stem and an ogee-flanged acetabular socket were used in all patients. The average duration of follow up after arthroplasty was 5.3 years [range 4-7 years]. All patients were evaluated using a modified Harris hip scoring system and a standardized anteroposterior pelvis radiograph for hips. Differences between the preoperative and postoperative [last evaluation] scores were assessed with the student's t-test and Chi-square test. The mean overall modified Harris hip score was improved from 48 points preoperatively to 89 points at the last follow up evaluation, this improvement was significant. A low percentage of radiological demarcation at the bone-cement interface around the acetabular sockets was observed in the immediate postoperative and the last follow up radiographs