Highly porous acetabular components are widely used in revision hip surgery. The purpose of this study is to compare the mid-term survivorship, clinical and radiological outcomes of a hemispherical cup (Stryker Tritanium Revision component) and a peripherally expanded cup (Zimmer TM modular component) in revision hip surgery. Between 2010 and 2017, 30 patients underwent revision hip replacement using a hemispherical cup and 54 patients using a peripherally expanded cup. The surgery was carried out by two arthroplasty surgeons, both fellowship-trained in revision hip surgery. Kaplan-Meier analysis was used to determine the survivorship of the components. Clinical outcomes were measured using the Oxford Hip Score. Radiographs were analysed for the presence of radiolucent lines in the DeLee and Charnley zones.Background
Methods
We report the 15 year follow-up of displaced intra-articular calcaneal fractures from a randomised controlled trial of conservative versus operative treatment. Of the initial study, 46 patients (82%) were still alive and 26 patients (57%) agreed to review. The clinical outcomes were not different between operative versus conservative treatment. American Orthopaedic Foot and Ankle Society (AOFAS) hindfoot scale: p = 0.11; Foot Function Index (FFI): p = 0.66; and calcaneal fracture score: p = 0.41. The radiological outcomes also were not different between both groups. Böhler’s angle: p = 0.07; height of calcaneum: p = 0.57; and grade of osteoarthritis of the subtalar joint: p = 0.54. There was no correlation between Böhler’s angle and the outcome measures in either group. The results of this 15 year follow-up of displaced intra-articular calcaneal fracture randomised controlled trial demonstrate similar findings to those at one year follow-up.
Economic evaluation of surgical procedures is necessary in view of emerging, often more expensive newer techniques and the budget constraints in an increasingly cost conscious NHS. The purpose of the study was to compare the cost effectiveness of open cuff repair with arthroscopic repair for moderate size tears. This was a prospective study involving 20 patients. Ten had an arthroscopic repair and 10 had an open procedure. Effectiveness was measured by pre and post-operative Oxford scores. The patients also had Constant scores done. Costs were estimated from the departmental and hospital financial data. Rotator cuff repair was an effective operation in both the groups. At the last follow up there was no statistically significant difference in the patients Oxford and Constant scores between the two methods of repair. There was no significant difference in the time in theatre, inpatient time, post-operative analgesia, number of pre and post-operative outpatient visits, physiotherapy costs and time off work between the two groups. The arthroscopic cuff repair was significantly more expensive than open repair. The incremental cost of each arthroscopic repair was £610 higher than open procedure. This was mainly in the area of direct health-care costs (instrumentation in particular). Health care policy makers are increasingly demanding evidence of cost effectiveness of a procedure. Such data is infrequently available in orthopaedics. To our knowledge there no published cost-utility analysis for the above said two types of interventions for cuff repair. Both methods of repair are effective but in our study open cuff repair is more cost effective and is likely to have better (lower) cost-utility ratio.
The proportion of very elderly people within the general population is steadily increasing. These people, who often have coexisting medical problems and a limited life expectancy, may pose a dilemma for Orthopaedic Surgeons when referred for elective Orthopaedic procedures. The purpose of this study is to review the outcome of primary hip and knee arthroplasty in patients aged 90, and over, who are registered with the Trent Regional Arthroplasty Database. Between 1990 and 2000, prospective data was collected on patients aged 90, and over, undergoing primary total hip and knee arthroplasty. Data collection was carried out on behalf of the Trent Regional Arthroplasty Audit Group. The present living status of these patients was confirmed using patient administrations systems of the hospitals involved. Missing data was obtained from the Office for National Statistics. Those patients alive at one year were sent a simple satisfaction questionnaire regarding their operation. 144 patients underwent 149 hip or knee arthroplasty procedures over this eleven year period. The group comprised 122 (85%) females and 27 (15%) males. There were 93 (62%) total hip replacements and 56 (38%) total knee replacements. Ostcoarthritis was the predominant reason for surgery. There was only one intra-operative complication, comprising a fractured femur during a total hip replacement. 78 patients have died since their surgery. The crude mortality rate at one year was 11. 5%. The median survival was 34 months. 51% of the patients returned satisfaction questionnaires one year after the operation. From this group the satisfaction rates for hip and knee arthroplasty were 93. 6% and 92. 6% retrospectively. With suitable pre-operative assessment, primary total hip and knee arthroplasty can be a successful operation with a high satisfaction rate. This is an age group with a high mortality regardless of surgery, and age alone should not be a determining factor in deciding whether a patient will benefit from primary hip or knee arthroplasty.
We report the results of the Charnley Elite Plus femoral stem (Ortron 90; Depuy, Leeds, United Kingdom) in multiple surgeon’s hands at a minimum of three years post implantation. The long term results of the Charnley femoral stem have been widely documented . There have been numerous changes to the design and instrumentation of this original stem since its introduction in 1962, and the Charnley Elite Plus represents the fifth generation of this highly successful implant. Between March 1994 and March 1998, 244 patients underwent 268 primary hip arthroplasty procedures using this particular stem. Patients were reviewed at a mean of 4.5 years (3.0 – 6.8 years) following their arthroplasty using the Oxford Hip Score and plain radiographs. There were five revision procedures for aseptic loosening (5/268; 1.9%). Radiological assessment revealed gross radiological failure in a further 12 femoral stems (12/208; 5.8%). There was evidence of focal osteolysis with an apparently stable implant in 36 hips (17.3%). In the best case scenario, using revision for aseptic loosening as the endpoint, the survivorship for this period is 98.1%. If radiographic failures are incorporated into this endpoint, survivorship is 93.1%. Of potential concern however, is the number of adverse features noted on the radiographs, with only 76.9% being categorised as ‘normal.’ The Charnley Elite Plus stem has undergone some fundamental design changes from the original Charnley stem and therefore clinical success should not be automatically assumed. In such circumstances we recommend regular clinical and radiographic follow-up of patients who have have undergone total hip arthroplasty with this particular femoral stem.
Our aim was to determine whether children with buckle fractures of the distal radius could be managed at home after initial hospital treatment. There were 87 patients in the trial: 40 had their short-arm backslab removed at home three weeks after the initial injury, and 47 followed normal practice by attending the fracture clinic after three weeks for removal of the backslab. Clinical examination six weeks after the injury showed no significant difference in deformity of the wrist, tenderness, range of movement and satisfaction between the two groups. Fourteen (33%) of the hospital group compared with five (14%) (p = 0.04) of those managed in the community stated that they had problems with the care of their child’s fracture. It was found that both groups, given a choice, would prefer to remove their child’s backslab at home (p <
0.001). Our findings show that it is clinically safe to manage children with buckle fractures within the community.