Computer hexapod assisted orthopaedic surgery (CHAOS) has previously been shown to provide a predictable and safe method for correcting multiplanar femoral deformity. We report the outcomes of tibial deformity correction using CHAOS, as well as a new cohort of femoral CHAOS procedures. Retrospective review of medical records and radiographs for patients who underwent CHAOS for lower limb deformity at our tertiary centre between 2012–2020.Introduction
Materials and Methods
The prevalence of degenerative spondylolisthesis (DS) increases with age. With an ageing population there will be increasing demands for adult deformity surgery, with associated significant financial and complication costs. The prevalence of lytic spondylolisthesis (LS) is 6–8%. Our clinical observation is that it is extremely rare to see LS in the presence of DS and therefore the objective was to formally describe the prevalence of LS in combination with DS to assess the hypothesis that 6–8% of patients with DS should also have LS. If this is not the case it may further our understanding of the pathogenesis of DS, which could aid in future prevention or treatment. A retrospective review of erect lateral lumbar radiographs demonstrating lumbar spondylolisthesis was performed. Radiographs were identified and analysed on the hospital Synapse Picture Archiving and Communication System (PACS). Search criteria were radiographs requested by primary care and patients aged over 60. 101 patients with spondylolisthesis were identified. 89% were requested for back or leg pain. There were 89 patients with DS (69.7% women) and 12 with LS (83% men). The average age of DS and LS patient was 75 and 70 respectively (not significant). There were no cases found with both DS and LS. This was significantly different to the expected amount of 6% (p=0.03). The level of DS was at L3/4 in 11.2% (n=10), L4/5 in 79.8% (n=71) and L5/S1 in 16.9% (n=15). 2 levels were involved in 7 patients. 94.4% (n=84) demonstrated a Meyerding grade 1 slip and 5.6% (n=5) grade 2 slip. For LS the slipped level was at L5/S1 in all cases. 66.7% (n=8) had a grade 1 slip and 33.3% (n=4) a grade 2 slip. We found no cases of lytic spondylolisthesis in the presence of degenerative spondylolisthesis. We hypothesis that the presence of spondylolysis or lytic spondylolisthesis may be protective against development of degenerative spondylolisthesis. More work is needed to explore this further.
Total hip replacement (THR) is NICE recommended for a group of patients with neck of femur fracture (NOF) and guidance published in 2011. In our institution a Hip Fracture Program was established at this time to improve patient care. An audit of the Hip Fracture Program, appropriateness of THR and management following THR was undertaken and compared to NICE standards, set at 100%, and National Hip Fracture Database (NHFD) results The case-notes for 53 patients (38 female, 15 male) undergoing THR for NOF between 2011 and 2013 were reviewed: median age 70 yrs (34–87), follow-up 28 months (3–57). All patients were initiated on a Hip Fracture Program. 92% were eligible for THR according to NICE guidance. Pre-operative pain management (67%), hourly assessment of pain in ED (4%), surgery with 48 hours (32%), pre-operative orthogeriatric review (58%) and intra-operative nerve block (38%) are areas for development, but most results are comparable to NHFD. Post-operative care is satisfactory with daily mobilisation (87%) and post-operative pain management (100%). No post-operative dislocation or infection was recorded. There was one case of post-operative DVT. This study highlights areas for improvement in hip fracture management and emphasises the benefits in implementing a Hip Fracture Program in this vulnerable patient population.
