Comparative study between two acetabular cementing techniques in Exeter total hip replacement

This prospective comparative study of 26 Exeter total hip replacement [Stryker -Howmdica, UK] evaluate the effect of keeping the acetabulum cup as dry as possibly prior to cement and cup application on the quality of acetabular bone cement mantle in total hip replacement by using an iliac wing venting technique and all polyethylene Exeter non-flanged cup. Twenty six patients were randomly allocated to two groups; Group A, an Exeter iliac wing aspirator was used prior and during the cementing of the acetabular cup. In group B an exact cementing technique was used but without the iliac wing aspirator. Standardised antero-posterior X-ray films of all patients were blindly and independently assessed to measure the penetration of the cement in the acetabular floor. The study has shown that the bone cement mantle in group A is better than that of group B

Arthroplasty of the trapeziometacrpal joint. A study of 36 cases

This retrospective study was done during the period 1998 - 2002 to evaluate two types of surgeries for symptomatic osteoarthritis of the trapeziometacarpal joint at the base of the thumb in 36 hands. There were 19 females and 7 males. Follow up period ranged from 18 to 39 months [mean 32 months]. The study reviewed fifteen [41.7%] hands treated by tendon interposition arthroplasty with ligamentoplasty and twenty one [58.3%] hands treated by silicone replacement arthroplasty. The clinical outcome was measured depending on the assessment of pain, function, movement and strength. Radiologic follow up was done for proximal shift of the thumb metacarpal as well as signs of implant instability or wear. For this short term follow up, there was no significant difference regarding the power, movement, or function between either groups. In the tendon interposition arthroplasty group; pain relief was much better, no significant complications and the ultimate clinical score was excellent [36 points]. In the silicone replacement group; the clinical score was good [32 points] and complication rate was high with four implant dislocations [19%] and two symptomatic synovitis [9.5%]. Six hands of the silicone replacement group [28.5%] needed revision by removal of the implant while in the tendon interposition group no revision was needed