Aims. Using the Australian and New Zealand Hip Fracture Registry (ANZHFR) data, this study aimed to identify patient, fracture, and management factors associated with survival, mobility and residential status at 120 days. This will allow future interventions to target modifiable risk factors to improve the overall care of patients with hip fractures. Methods. All NZ patients from 2018 – 2020 were included. Baseline demographics, management factors, and outcomes were recorded. Key outcomes were change in walking status, residential status and survival at 120 days. Univariate analysis was performed to compare differences in demographics, surgical and management factors for the key variables. Multivariate analysis was conducted to identify factors independently associated with outcomes. Results. Data from 9432 patients were analysed. The average age was 82.8 years (SD 9.8). 70.3% were females. 39.5% of patients were cognitively impaired on admission, 71.4% were from their own residence. At 120 days post injury, 10.9% (1029) had died 1029 (10.9%), 15.3% (1034) had a decrease in their residential status, 44.9% (2966) had a reduction in walking ability. On multivariate analysis; older age (RR1.1/yr, p<0.001), male sex (RR1.7, P<0.001), cognitive impairment (RR2.2, p<0.001) and ASA>3 (RR3.7, p=0.015) were risk factors for death. Similarly, increasing age (RR1.1 per year, p<0.001), cognitive impairment (RR1.2, p=0.04) and ASA>3 (RR2.9, p=0.047) were significant risk factors for worsening residential status. Decreasing mobility was associated with extracapsular fractures (RR1.4, p=0.01). After adjustment for demographics, ASA and fracture type, performing total hip arthroplasty was preventative for both worsening residential status (RR0.23, p<0.001) and decreasing walking ability (RR 0.21, p<0.001). There was no significant survival, functional or revision differences for other fixation types. Conclusion. There is a significant decline in walking ability post hip fracture which may be a key contributor to long-term morbidity. The benefits of THA in preserving mobility and independence should be further investigated. Additional discharge planning and multi-disciplinary team input are likely required for high-risk patients of older age, with cognitive impairment and extracapsular fractures

Introduction. Neck of femur (NoF) fractures have an inherent 6.5% 30-day mortality as per National hip fracture database(2019). Several studies have demonstrated a higher mortality rate in covid positive NoFs but have been unable to demonstrate whether there are risk factors that contribute to the risk of mortality in this patient group or whether COVID is solely responsible for the higher mortality. Aims. To assess risk factors that are concurrently present in a fracture NoF cohort that may contribute to higher mortality in COVID positive patients. Methods. A cross sectional, retrospective study was performed for a period of 1 year starting from 1st March 2020. All surgically treated neck of femur fracture patients having an isolated intra/extracapsular fracture were included in the study. Data fields recorded- patient demographics, date and time of admission, ward discharge, surgery, mode of surgery (fixation/arthroplasty), prehospital AMTS score, residential status and mobility, ASA grade as per anaesthetist's records, date of death (if deceased), cause of death (as per death certificate/ postmortem / coroner's report). Analysis of mortality was carried out by creating a matched comparison group for each risk factor as well as some combinations. Results. 344 patients were surgically treated for a neck of femur fracture in our DGH during the period of 1st March 2020 to 28th February 2021. 46 patients did not receive a COVID swab (reasons unknown) and were excluded from the study. 35 patients had a COVID-19 RT PCR positive test during their hospital stay and 264 patients remained negative. There were 12 deaths in COVID positive patients (34%) and 53 deaths in COVID negative patients (20%) within the time frame of the study. For each risk factor matched group COVID was seen to confer higher mortality in general. There was no mortality in ASA 1 or 2 patients. Mortality rates in matched groups for age and ASA revealed 23.8% mortality in COVID positive as opposed to 17.3% in COVID negative for ASA 3 and 33.3% mortality in COVID positive vs. 28% in ASA 4. 11 out of the 12 COVID positive patients who died had an AMTS score >6. No correlation was seen between COVID positive deaths and preinjury residential status, type of fracture or surgery offered, or preinjury mobility. The average length of hospital stay was much higher for COVID positive patients (19.5days) as compared to 9.5 days for COVID negative patients. Conclusion. Matched group analysis show that there is a 37.5% increase in COVID positive neck of femur fracture mortality in ASA 3 patients, the same number falls to 17.8% for ASA 4 patients. These figures are much lower compared to other studies in the UK. There is a need to understand the real cause of death in this subset and to improve death certification so that we can differentiate between patients whose mortality is ‘due to’ or ‘With’ COVID

Hip fractures accounts to about 86000 cases per annum in UK. AP and Lateral radiographs form an essential investigation in planning the management of these fractures. Recently it has been suggested that lateral view doesn't provide any additional information in majority of the cases. We looked retrospectively at 25 consecutive radiographs with intracapsular and extracapsular fracture neck of femur each presenting to our department between May 2010 and January 2011. These radiographs were put on the CD in 2 folders as AP and Lateral. It was reviewed by 2 Observers who suggested their preferred treatment. The results were compared for the intra observer agreement to assess the necessity of the lateral view of the radiographs. We also compared the treatment options with the gold standard and looked at the interobserver agreement. Of the 50 set of radiographs that were reviewed, Observer 1 had disagreed with himself on one occasion (98%agreement) compared to the Observer 2 who had two disagreements (96% agreement). When analyzing the intracapsular fractures, we found 100% agreement of OBSERVER 1 with himself when proposing treatment on AP and Lateral View. Whereas, OBSERVER 2 had only one disagreement. It gave us a Free marginal kappa value of more than 0.70 indicating excellent agreement. One difference doesn't have any statistical significance. In the extracapsular fractures, Kappa values ranged from 0.413 to 0.88. OBSERVER 1 did change his opinion after reviewing the lateral view but generally had good outcome (K=0.88). Whereas, the opinion of OBSERVER 2 was unaffected by the Lateral view. The X-ray diagnoses by OBSERVER 1 and OBSERVER 2 had only moderate agreement (K=0.52 (AP) and 0.57 (Lat). Comparing the observer opinion to the gold standard (operation performed) showed moderate agreement both on AP and Lateral view (OBSERVER 1 AP and Lat both K=0.64, OBSERVER 2 AP and Lat both K=0.41). The Lateral view failed to change the opinion of the observers (K > 0.7) but there was moderate to excellent agreement between the observers and observer vs operation (The Gold Standard) with kappa value of more than 0.52. We feel that the Lateral view doesn't make any difference in most of the cases as shown by a good intra-observer agreement. However, we cannot completely rule out their importance and they should be performed in occult fractures, pathological fractures, fractures extending into the shaft, young patients, and on the request of physician

Fracture neck of femur (NOF) in elderly is a serious debilitating injury and has been presenting in increasing proportions. Some of these patients are unfortunate to come back with a contralateral injury. We attempted at looking into the incidence of these episodes in a cohort attending our trust and compared various parameters. We retrospectively assessed our hospital theatre data for fracture NOF in patients over 60 years in the last 3 years. We reviewed their demographics, mode of injury, time to contralateral injury, incidence of any other insufficiency fracture, operative procedure and any complications. There were 1435 patients who underwent surgery for fracture NOF over the 3 years. Forty-three of these had bilateral fractures. Females had 3 times more incidence as compared to males; average age at first injury was 84 years and at contralateral side was 85 years. Time between the two injuries ranged from 20 to 855 days (Median 242 days). Almost equal incidence of intra / extracapsular fractures was noted. Contralateral fracture pattern (Intra vs Extracapsular) for the was similar in 34 patients. Twelve patients had an associated insufficiency fracture. Fracture NOF in elderly is a rising epidemic. Only 3% of these patients suffer a contralateral fracture NOF which usually occurs within a year. The fracture pattern is frequently similar to the first fracture in and hence similar implants have been used. Only 21% patients were on bone protection medications. It is rather difficult to identify this small group and hence prevent a second contralateral incident

The purpose of the study was to identify factors that affect the incidence of deep wound infection after hip fracture surgery. Data from a hip fracture database of 7057 consecutively treated patients at a single centre was used to determine the relationship between deep wound sepsis and a number of factors. Fisher's exact test and the unpaired T test were used. All patients were initially followed up in a specialist clinic. In addition a phone call assessment was made at one year from injury to check that no later wound healing complications had occurred. There were 50 cases of deep infection (rate of 0.7%). There was no significant difference in the rate of deep sepsis with regards to the age, sex, pre-operative residential status, mobility or mental test score of the patient. Specialist hip surgeons and Consultants have a lower infection rate compared with surgeons below Consultant grade, p=0.01. The mean length of anaesthesia was longer in the sepsis group (76minutes) compared to the no sepsis group (65minutes), this was significant, p=0.01. The patient's ASA grade and fracture type were not significant factors. The rate of infection in intracapsular fractures treated by hemiarthroplasty was significantly greater than those that had internal fixation, p=0.001. The rate of infection in extracapsular fractures fixed with an extra-medullary device was significantly greater than those fixed with an intra-medullary device, p=0.021. The presence of an infected ulcer on the same leg as the fracture was not associated with a higher rate of deep infection. In conclusion we have found that the experience (seniority) of the surgeon, the length of anaesthesia and the type of fixation used are all significant factors in the development of deep sepsis. These are all potentially modifiable risk factors and should be considered in the treatment of hip fracture patients

Introduction. The reverse obliquity fractures of the proximal femur are anatomically and mechanically different from most intertrochanteric fractures. These fractures are complex and very difficult to treat. To evaluate the results of the treatment of reverse obliquity intertrochanteric fractures with cephalomedullary nails. Materials and Methods. Between 2005 and 2009, 1179 extracapsular fractures of the proximal femur were treated at our institution. Retrospective review of these x-rays identified 59 patients with reverse obliquity fracture pattern. We analysed our results of cephalomedullary nailing of these complex fractures and evaluated factors responsible for failure of fixation. Results. Of the 59 patients with reverse oblique fracture pattern, one patient was treated with DHS, and two other patients didn't have post-operative x-rays and therefore were excluded from the study. Of the remaining 56 patients treated with cephalomedullary nails, forty eight were treated with gamma nails, five with PFNA and three with ATN. There were 40 females and 16 males with median age of 81.3 years (17–103 years). Six of the fifty six (10.7%) failed to heal or had failure of fixation. The failure rate was four of forty eight for the gamma nails, one of five of the PFNA and one of three of ATN. One of thirty seven (2.7%) of anatomically reduced fractures and five of nineteen (26.3%) of non-anatomically reduced fractures had failure of treatment (p = 0.01). Three of thirteen (23.1%) with femoral medialisation and three of forty three (6.9%) without femoral medialisation had failure of treatment (p = 0.13). Four of forty four (9.1%) with avulsed lesser trochanter and two of twelve (16.6%) without avulsion had failure of treatment (p = 0.59). Three of thirty seven (8.1%) with tip apex distance (TAD) of less than twenty and three of nineteen (15.7%) with TAD more than twenty had failure of treatment (p = 0.65). Conclusion. Inspite of the recent advances in the methods of internal fixation available to surgeons, reverse obliquity intertrochanteric fractures continue to be a challenge for orthopaedic surgeons. In our study, although poor fracture reduction was observed to be the only significant factor associated with a high failure rate, femoral medialisation and tip apex distance of more than 20 had a high association with poor outcome

Aims

Despite the COVID-19 pandemic, incidence of hip fracture has not changed. Evidence has shown increased mortality rates associated with COVID-19 infection. However, little is known about the outcomes of COVID-19 negative patients in a pandemic environment. In addition, the impact of vitamin D levels on mortality in COVID-19 hip fracture patients has yet to be determined.