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Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_9 | Pages 7 - 7
1 May 2014
Evans J Evans C Armstrong A
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NICE guidelines state that patients undergoing hip or knee arthroplasty should start as an in-patient and then continue pharmacological VTE prophylaxis for 28–35 days. Retrospective review of all elective hip and knee arthroplasties during one calendar month gave a baseline measurement of how many patients had VTE prophylaxis prescribed on their discharge summary. A new, electronically completed, bespoke Trauma and Orthopaedic discharge summary was created with a discreet area clearly marked for VTE prophylaxis, to serve as a reminder to prescribe it. In March 2012, 93 patients underwent hip/knee arthroplasty. 76% (71/93) were prescribed VTE prophylaxis to take home, there was no clinical reason explaining the failure to prescribe prophylaxis in the remaining 24%. In July 2013, after implementation of the change, 117 patients underwent hip/knee arthroplasty. 99% (116/117) were prescribed VTE prophylaxis to take home. Repeat audit in October 2013 showed that 103 patients underwent hip/knee arthroplasty and 100% were prescribed VTE prophylaxis. A simple but clear change to paperwork, brought about a rapid and seemingly lasting change in the prescription of out-patient VTE prophylaxis. The improvement was seen before and after a change of the Junior Doctor workforce suggesting the change in documentation was the main influencing factor


The Bone & Joint Journal
Vol. 101-B, Issue 11 | Pages 1402 - 1407
1 Nov 2019
Cehic M Lerner RG Achten J Griffin XL Prieto-Alhambra D Costa ML

Aims. Bone health assessment and the prescription of medication for secondary fracture prevention have become an integral part of the acute management of patients with hip fracture. However, there is little evidence regarding compliance with prescription guidelines and subsequent adherence to medication in this patient group. Patients and Methods. The World Hip Trauma Evaluation (WHiTE) is a multicentre, prospective cohort of hip fracture patients in NHS hospitals in England and Wales. Patients aged 60 years and older who received operative treatment for a hip fracture were eligible for inclusion in WHiTE. The prescription of bone protection medications was recorded from participants’ discharge summaries, and participant-reported use of bone protection medications was recorded at 120 days following surgery. Results. Of 5456 recruited patients with baseline data, 2853 patients (52%) were prescribed bone protection medication at discharge, of which oral bisphosphonates were the most common, 4109 patients (75%) were prescribed vitamin D or calcium, and 606 patients (11%) were not prescribed anything. Of those prescribed a bone protection medication, only 932 patients (33%) reported still taking their medication 120 days later. Conclusion. These data provide a reference for current prescription and adherence rates. Adherence with oral medication remains poor in patients with hip fracture. Cite this article: Bone Joint J 2019;101-B:1402–1407


Orthopaedic Proceedings
Vol. 103-B, Issue SUPP_12 | Pages 9 - 9
1 Oct 2021
Scott-Watson M Adams S Dixon M Garcia-Martinez S Johnston M Adams C
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Success treating AIS with bracing is related to time worn and scoliosis severity. Temperature monitoring can help patients comply with their orthotic prescription. Routinely collected temperature data from the start of first brace treatment was reviewed for 14 patients. All were female with an average age of 12.4 years (range 10.3–14.6) and average 49o Cobb angle (30–64). Our current service recommendation is brace wear for 20 hours a day. Patients complied with this prescription 38.0% of the time, with four patients averaging this or more. Average brace wear was 16.3 hours per day (3.5–22.2). There were 13 patients who had completed brace treatment. The majority had surgery (7/13; 54%) or were considering surgery (1/13; 8%). There were 5 who did not wish surgery at discharge (5/13; 38%); 1 achieved a 40o Cobb angle, with 4 larger (53o;53o;54o;68o). The Bracing in AIS Trial (BrAIST) study measured “success” as less than a 50o Cobb angle, so using this metric our cohort has had a single “success”. Temperature monitors allowed an analysis of when patients were achieving their brace wear. When comparing daywear (8am-8pm) to nightwear (8pm-8am), patients wore their brace an average of 7.6 hours a day (2.5–11.2) and 8.7 hours a night (0.4–11.5). We conclude the minority of our patients comply with our current 20 hour orthotic prescription. The “success” of brace treatment is lower than comparison studies despite higher average compliance but starting with a larger scoliosis. Brace wear is achieved during both the day and night


The Bone & Joint Journal
Vol. 105-B, Issue 9 | Pages 1013 - 1019
1 Sep 2023
Johansen A Hall AJ Ojeda-Thies C Poacher AT Costa ML

Aims. National hip fracture registries audit similar aspects of care but there is variation in the actual data collected; these differences restrict international comparison, benchmarking, and research. The Fragility Fracture Network (FFN) published a revised minimum common dataset (MCD) in 2022 to improve consistency and interoperability. Our aim was to assess compatibility of existing registries with the MCD. Methods. We compared 17 hip fracture registries covering 20 countries (Argentina; Australia and New Zealand; China; Denmark; England, Wales, and Northern Ireland; Germany; Holland; Ireland; Japan; Mexico; Norway; Pakistan; the Philippines; Scotland; South Korea; Spain; and Sweden), setting each of these against the 20 core and 12 optional fields of the MCD. Results. The highest MCD adherence was demonstrated by the most recently established registries. The first-generation registries in Scandinavia collect data for 60% of MCD fields, second-generation registries (UK, other European, and Australia and New Zealand) collect for 75%, and third-generation registries collect data for 85% of MCD fields. Five of the 20 core fields were collected by all 17 registries (age; sex; surgery date/time of operation; surgery type; and death during acute admission). Two fields were collected by most (16/17; 94%) registries (date/time of presentation and American Society of Anesthesiologists grade), and five more by the majority (15/17; 88%) registries (type, side, and pathological nature of fracture; anaesthetic modality; and discharge destination). Three core fields were each collected by only 11/17 (65%) registries: prefracture mobility/activities of daily living; cognition on admission; and bone protection medication prescription. Conclusion. There is moderate but improving compatibility between existing registries and the FFN MCD, and its introduction in 2022 was associated with an improved level of adherence among the most recently established programmes. Greater interoperability could be facilitated by improving consistency of data collection relating to prefracture function, cognition, bone protection, and follow-up duration, and this could improve international collaborative benchmarking, research, and quality improvement. Cite this article: Bone Joint J 2023;105-B(9):1013–1019


Bone & Joint Open
Vol. 2, Issue 2 | Pages 72 - 78
1 Feb 2021
Agni NR Costa ML Achten J O’Connor H Png ME Peckham N Dutton SJ Wallis S Milca S Reed M

Aims. Patients receiving cemented hemiarthroplasties after hip fracture have a significant risk of deep surgical site infection (SSI). Standard UK practice to minimize the risk of SSI includes the use of antibiotic-loaded bone cement with no consensus regarding type, dose, or antibiotic content of the cement. This is the protocol for a randomized clinical trial to investigate the clinical and cost-effectiveness of high dose dual antibiotic-loaded cement in comparison to low dose single antibiotic-loaded cement in patients 60 years and over receiving a cemented hemiarthroplasty for an intracapsular hip fracture. Methods. The WHiTE 8 Copal Or Palacos Antibiotic Loaded bone cement trial (WHiTE 8 COPAL) is a multicentre, multi-surgeon, parallel, two-arm, randomized clinical trial. The pragmatic study will be embedded in the World Hip Trauma Evaluation (WHiTE) (ISRCTN 63982700). Participants, including those that lack capacity, will be allocated on a 1:1 basis stratified by recruitment centre to either a low dose single antibiotic-loaded bone cement or a high dose dual antibiotic-loaded bone cement. The primary analysis will compare the differences in deep SSI rate as defined by the Centers for Disease Control and Prevention within 90 days of surgery via medical record review and patient self-reported questionnaires. Secondary outcomes include UK Core Outcome Set for hip fractures, complications, rate of antibiotic prescription, resistance patterns of deep SSI, and resource use (more specifically, cost-effectiveness) up to four months post-randomization. A minimum of 4,920 patients will be recruited to obtain 90% power to detect an absolute difference of 1.5% in the rate of deep SSI at 90 days for the expected 3% deep SSI rate in the control group. Conclusion. The results of this trial will provide evidence regarding clinical and cost-effectiveness between low dose single and high dose dual antibiotic-loaded bone cement, which will inform policy and practice guidelines such as the National Institute for Health and Care Excellence guidance on management of hip fractures. Cite this article: Bone Jt Open 2021;2(2):72–78


The Bone & Joint Journal
Vol. 105-B, Issue 8 | Pages 872 - 879
1 Aug 2023
Ogawa T Onuma R Kristensen MT Yoshii T Fujiwara T Fushimi K Okawa A Jinno T

Aims

The aim of this study was to investigate the association between additional rehabilitation at the weekend, and in-hospital mortality and complications in patients with hip fracture who underwent surgery.

Methods

A retrospective cohort study was conducted in Japan using a nationwide multicentre database from April 2010 to March 2018, including 572,181 patients who had received hip fracture surgery. Propensity score matching was performed to compare patients who received additional weekend rehabilitation at the weekend in addition to rehabilitation on weekdays after the surgery (plus-weekends group), as well as those who did not receive additional rehabilitation at the weekend but did receive weekday rehabilitation (weekdays-only group). After the propensity score matching of 259,168 cases, in-hospital mortality as the primary outcome and systemic and surgical complications as the secondary outcomes were compared between the two groups.


The Bone & Joint Journal
Vol. 106-B, Issue 1 | Pages 62 - 68
1 Jan 2024
Harris E Clement N MacLullich A Farrow L

Aims

Current levels of hip fracture morbidity contribute greatly to the overall burden on health and social care services. Given the anticipated ageing of the population over the coming decade, there is potential for this burden to increase further, although the exact scale of impact has not been identified in contemporary literature. We therefore set out to predict the future incidence of hip fracture and help inform appropriate service provision to maintain an adequate standard of care.

Methods

Historical data from the Scottish Hip Fracture Audit (2017 to 2021) were used to identify monthly incidence rates. Established time series forecasting techniques (Exponential Smoothing and Autoregressive Integrated Moving Average) were then used to predict the annual number of hip fractures from 2022 to 2029, including adjustment for predicted changes in national population demographics. Predicted differences in service-level outcomes (length of stay and discharge destination) were analyzed, including the associated financial cost of any changes.


The Bone & Joint Journal
Vol. 105-B, Issue 10 | Pages 1070 - 1077
1 Oct 2023
Png ME Costa M Nickil A Achten J Peckham N Reed MR

Aims

To compare the cost-effectiveness of high-dose, dual-antibiotic cement versus single-antibiotic cement for the treatment of displaced intracapsular hip fractures in older adults.

Methods

Using data from a multicentre randomized controlled trial (World Hip Trauma Evaluation 8 (WHiTE-8)) in the UK, a within-trial economic evaluation was conducted. Resource usage was measured over 120 days post randomization, and cost-effectiveness was reported in terms of incremental cost per quality-adjusted life year (QALY), gained from the UK NHS and personal social services (PSS) perspective in the base-case analysis. Methodological uncertainty was addressed using sensitivity analysis, while decision uncertainty was handled using confidence ellipses and cost-effectiveness acceptability curves.


The Bone & Joint Journal
Vol. 106-B, Issue 8 | Pages 849 - 857
1 Aug 2024
Hatano M Sasabuchi Y Ishikura H Watanabe H Tanaka T Tanaka S Yasunaga H

Aims

The use of multimodal non-opioid analgesia in hip fractures, specifically acetaminophen combined with non-steroidal anti-inflammatory drugs (NSAIDs), has been increasing. However, the effectiveness and safety of this approach remain unclear. This study aimed to compare postoperative outcomes among patients with hip fractures who preoperatively received either acetaminophen combined with NSAIDs, NSAIDs alone, or acetaminophen alone.

Methods

This nationwide retrospective cohort study used data from the Diagnosis Procedure Combination database. We included patients aged ≥ 18 years who underwent surgery for hip fractures and received acetaminophen combined with NSAIDs (combination group), NSAIDs alone (NSAIDs group), or acetaminophen alone (acetaminophen group) preoperatively, between April 2010 and March 2022. Primary outcomes were in-hospital mortality and complications. Secondary outcomes were opioid use postoperatively; readmission within 90 days, one year, and two years; and total hospitalization costs. We used propensity score overlap weighting models, with the acetaminophen group as the reference group.


The Bone & Joint Journal
Vol. 104-B, Issue 1 | Pages 127 - 133
1 Jan 2022
Viberg B Pedersen AB Kjærsgaard A Lauritsen J Overgaard S

Aims

The aim of this study was to assess the association of mortality and reoperation when comparing cemented and uncemented hemiarthroplasty (HA) in hip fracture patients aged over 65 years.

Methods

This was a population-based cohort study on hip fracture patients using prospectively gathered data from several national registries in Denmark from 2004 to 2015 with up to five years follow-up. The primary outcome was mortality and the secondary outcome was reoperation. Hazard ratios (HRs) for mortality and subdistributional hazard ratios (sHRs) for reoperations are shown with 95% confidence intervals (CIs).


Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_5 | Pages 13 - 13
1 May 2015
Mitchell C Timms A Laubscher M Goodier D Calder P
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Background:. The Exogen Ultrasound Device is licensed for fracture non-union under NICE guideline MTG-12. Reimbursement is offered if there is no fracture union after 250 days of treatment as per manufacturer guidelines. Quoted healing rates vary between 62% and 100%: we compare our results to these. Method:. A retrospective audit of all patients who received Exogen for long bone non-union was undertaken. The indication, duration of treatment, fracture outcome and compliance with the recommended treatment pathway were recorded. Results:. 41 patients (17M 24F) mean age 41yr were reviewed. There were 15 femoral, 22 tibial and 4 humeral non unions. 16 healed following a mean of 169 days of Exogen treatment (39%). 21 patients did not show any improvement in radiological/clinical union and required further surgery. 4 were not united after 250 days of Exogen treatment. No reimbursements were received. Discussion:. Our results with Exogen differ from published studies with lower than expected healing rates. Failure to complete the recommended pathway however resulted in a breach of the reimbursement stipulations. Conclusion:. Ongoing review of prescription and use of the Exogen device is required to ensure optimum patient outcomes. 250 days of treatment may not be required to determine failure to heal


The Bone & Joint Journal
Vol. 103-B, Issue 12 | Pages 1802 - 1808
1 Dec 2021
Bruce J Knight R Parsons N Betteridge R Verdon A Brown J Campolier M Achten J Costa ML

Aims

Deep surgical site infection (SSI) is common after lower limb fracture. We compared the diagnosis of deep SSI using alternative methods of data collection and examined the agreement of clinical photography and in-person clinical assessment by the Centers for Disease Control and Prevention (CDC) criteria after lower limb fracture surgery.

Methods

Data from two large, UK-based multicentre randomized controlled major trauma trials investigating SSI and wound healing after surgical repair of open lower limb fractures that could not be primarily closed (UK WOLLF), and surgical incisions for fractures that were primarily closed (UK WHiST), were examined. Trial interventions were standard wound care management and negative pressure wound therapy after initial surgical debridement. Wound outcomes were collected from 30 days to six weeks. We compared the level of agreement between wound photography and clinical assessment of CDC-defined SSI. We are also assessed the level of agreement between blinded independent assessors of the photographs.


The Bone & Joint Journal
Vol. 103-B, Issue 3 | Pages 449 - 455
1 Mar 2021
Viberg B Gundtoft PH Schønnemann JO Pedersen L Andersen LR Titlestad K Madsen CF Clemmensen SB Halekoh U Lauritsen J Overgaard S

Aims

To assess the safety of tranexamic acid (TXA) in a large cohort of patients aged over 65 years who have sustained a hip fracture, with a focus on transfusion rates, mortality, and thromboembolic events.

Methods

This is a consecutive cohort study with prospectively collected registry data. Patients with a hip fracture in the Region of Southern Denmark were included over a two-year time period (2015 to 2017) with the first year constituting a control group. In the second year, perioperative TXA was introduced as an intervention. Outcome was transfusion frequency, 30-day and 90-day mortality, and thromboembolic events. The latter was defined as any diagnosis or death due to arterial or venous thrombosis. The results are presented as relative risk (RR) and hazard ratio (HR) with 95% confidence intervals (CIs).


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_16 | Pages 44 - 44
1 Apr 2013
Goldhahn J Vestergaard P Bachmann L
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Introduction. Although a previous hip fracture is one of the strongest predictors for the next one this risk might be modified by other factors. The goal of this analysis was to compute a simple algorithm to assess the individual risk for a contralateral hip fracture. Materials and methods. The analysis is based on a nationwide population-based Danish cohort study of 84,360 patients experiencing a hip fracture followed-up for 5 years. We a priori defined a set of 17 candidate parameters potentially associated with early contralateral hip fracture. We bootstrapped a stepwise augmentation procedure 10 times and selected five parameters that entered the model in all bootstrapping cycles and computed the individual risk for a contralateral fracture within two, three, and five years after the first incidence. Results. 12,349 patients (14.6%) experienced a contralateral hip fracture within five years. The strength of association were: female gender (Odds Ratio 1.58), alcohol abuse 1.57, living in a single household 1.10, no prescription of bisphosphonates 1.64, and comorbidity and Charlson Score values less than 2 2.20, between 3 and 4 1.76, 5 and more, 1.46 against no comorbidity. The probability of experiencing a second fracture ranged from 3.4% to 25.9%. Discussion. Once this instrument is validated in other cohorts it provides a rational basis for prophylactic augmentation or more aggressive pharmaceutical treatment


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_V | Pages 3 - 3
1 Mar 2012
Jenkins PJ Teoh K Simpson PM Dave J Simpson A Breusch S
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Clostridium difficile is associated with a range of gastrointestinal disorders ranging from diarrhoea to toxic megacolon. Alteration of the normal gut flora by antibiotics is a key predisposing factor. Although antibiotic prophylaxis is routinely administered during joint replacement surgery, there has been controversy about both type and duration of prophylaxis. The primary aim of this study was to determine the incidence of C. diff associated disease (CDAD) following hip and knee replacement and to investigate potential risk factors. A laboratory database was interrogated to identify patients developing CDAD after hip or knee replacement from January 2006 to December 2008. A database of arthroplasty patients was used to identify a control group of patients without CDAD to compare the effects of prescription of antibiotics for reasons other prophylaxis of deep infection, comorbidity and the use of gastroprotective agents. Eight patients developed CDAD. There were 1.7 cases of CDAD per 1000 joint replacements. Patients developing CDAD were more likely to have been prescribed additional antibiotics (p=0.047). There were no differences in the use of gastroprotective agents (p=0.703). A trial of a new prophylaxis regime would require 43,198 patients in each arm to show a reduction to 1 case per 1000 procedures. Cefuroxime based antibiotic prophylaxis is safe in patients undergoing elective joint replacement. Extremely large studies would be required to show marginal clinical benefits of new regimes. One prophylaxis policy will not suit all orthopaedic patient groups or procedures


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 482 - 482
1 Sep 2012
Popa I Negoescu D Poenaru D Faur C Florescu S
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BACKGROUND CONTEXT. Osteoporosis causes decreased bone mineral density, which predisposes to fragility fractures. Low-energy vertebral compression fractures are the most common type of osteoporotic fragility fracture. Prior studies have shown that only one-quarter of patients diagnosed with an osteoporotic fracture are referred or treated for osteoporosis. PURPOSE. To identify the rate of recurrent fractures after vertebroplasty and after the conservative treatment for patients aged 50 years and older who sustained low impact vertebral compressions fractures over a 6-month period. STUDY DESIGNED/SETTING. Prospective study. PATIENT SAMPLE. The sample included patients 50 years or older who had a low-energy vertebral compression fracture. The patients were divided into two groups: first group (n=24) - patients teated by vertebroplasty and the second group (n=34) - patients treated conservatory. There was no significant difference among the groups in terms of the vertebral levels or BMD. METHODS. Patients records were reviewed for fracture recurrence and in the same time we examined medical records for osteoporotic medication prescriptions, refferals to endocrinology and to dual-energy X-ray absorptiometry (DEXA) scans. RESULTS. Confounding factors of age at the procedure, sex and chronic steroids use were considered and found to have no statistically significant difference between the two groups and between those with fracture recurrence and those without fracture recurrence. Four vertebroplasty procedure resulted in a recurrent fracture within the first 6 months. In the patient group treated conservatory 8 patients sustained recurrent fractures. Patients with recurrent vertebral fracture didn't receive active osteoporosis treatment. Within 6 months after the fracture only 21% of patients were receiving active osteoporosis treatment. CONCLUSIONS. The incidence of recurrent fracture after vertebroplasty or after conservative treatment is substantial but have no statistically significant difference between the two groups. We consider that the recurrence rate is not related with the surgical intervention but is the result of natural history of the patient's osteoporosis because the patients do not understand the importance of initiating active therapeutic intervention for osteoporosis recommended by physicians


The Bone & Joint Journal
Vol. 102-B, Issue 8 | Pages 1072 - 1081
1 Aug 2020
Png ME Madan JJ Dritsaki M Achten J Parsons N Fernandez M Grant R Nanchahal J Costa ML

Aims

To compare the cost-utility of standard dressing with incisional negative-pressure wound therapy (iNPWT) in adults with closed surgical wounds associated with major trauma to the lower limbs.

Methods

A within-trial economic evaluation was conducted from the UK NHS and personal social services (PSS) perspective based on data collected from the Wound Healing in Surgery for Trauma (WHiST) multicentre randomized clinical trial. Health resource utilization was collected over a six-month post-randomization period using trial case report forms and participant-completed questionnaires. Cost-utility was reported in terms of incremental cost per quality-adjusted life year (QALY) gained. Sensitivity analysis was conducted to test the robustness of cost-effectiveness estimates while uncertainty was handled using confidence ellipses and cost-effectiveness acceptability curves.


The Bone & Joint Journal
Vol. 101-B, Issue 11 | Pages 1392 - 1401
1 Nov 2019
Petrou S Parker B Masters J Achten J Bruce J Lamb SE Parsons N Costa ML

Aims

The aim of this study was to estimate the cost-effectiveness of negative-pressure wound therapy (NPWT) in comparison with standard wound management after initial surgical wound debridement in adults with severe open fractures of the lower limb.

Patients and Methods

An economic evaluation was conducted from the perspective of the United Kingdom NHS and Personal Social Services, based on evidence from the 460 participants in the Wound Management of Open Lower Limb Fractures (WOLLF) trial. Economic outcomes were collected prospectively over the 12-month follow-up period using trial case report forms and participant-completed questionnaires. Bivariate regression of costs (given in £, 2014 to 2015 prices) and quality-adjusted life-years (QALYs), with multiple imputation of missing data, was conducted to estimate the incremental cost per QALY gained associated with NPWT dressings. Sensitivity and subgroup analyses were undertaken to assess the impacts of uncertainty and heterogeneity, respectively, surrounding aspects of the economic evaluation.


The Bone & Joint Journal
Vol. 102-B, Issue 1 | Pages 42 - 47
1 Jan 2020
Jayakumar P Teunis T Vranceanu AM Williams M Lamb S Ring D Gwilym S

Aims

Patient engagement in adaptive health behaviours and interactions with their healthcare ecosystem can be measured using self-reported instruments, such as the Patient Activation Measure (PAM-13) and the Effective Consumer Scale (ECS-17). Few studies have investigated the influence of patient engagement on limitations (patient-reported outcome measures (PROMs)) and patient-reported experience measures (PREMs). First, we assessed whether patient engagement (PAM-13, ECS-17) within two to four weeks of an upper limb fracture was associated with limitations (the Quick Disabilities of the Arm, Shoulder and Hand questionnaire (QuickDASH), and Patient-Reported Outcome Measurement Information System Upper Extremity Physical Function computer adaptive test (PROMIS UE PF) scores) measured six to nine months after fracture, accounting for demographic, clinical, and psychosocial factors. Secondly, we assessed the association between patient engagement and experience (numerical rating scale for satisfaction with care (NRS-C) and satisfaction with services (NRS-S) six to nine months after fracture.

Methods

A total of 744 adults with an isolated fracture of the proximal humerus, elbow, or distal radius completed PROMs. Due to multicollinearity of patient engagement and psychosocial variables, we generated a single variable combining measures of engagement and psychosocial factors using factor analysis. We then performed multivariable analysis with p < 0.10 on bivariate analysis.


The Bone & Joint Journal
Vol. 101-B, Issue 10 | Pages 1285 - 1291
1 Oct 2019
MacKenzie SA Ng RT Snowden G Powell-Bowns MFR Duckworth AD Scott CEH

Aims

Currently, periprosthetic fractures are excluded from the American Society for Bone and Mineral Research (ASBMR) definition of atypical femoral fracture (AFFs). This study aims to report on a series of periprosthetic femoral fractures (PFFs) that otherwise meet the criteria for AFFs. Secondary aims were to identify predictors of periprosthetic atypical femoral fractures (PAFFs) and quantify the complications of treatment.

Patients and Methods

This was a retrospective case control study of consecutive patients with periprosthetic femoral fractures between 2007 and 2017. Two observers identified 16 PAFF cases (mean age 73.9 years (44 to 88), 14 female patients) and 17 typical periprosthetic fractures in patients on bisphosphonate therapy as controls (mean age 80.7 years (60 to 86, 13 female patients). Univariate and multivariate analysis was performed to identify predictors of PAFF. Management and complications were recorded.