Pelvic ring injury in the elderly: Fragile patients with substantial mortality rates and long-term physical impairment

[Robotically assisted placement of a pubic ramus screw and an SI-S1 screw]

OBJECTIVE OF SURGERY

The aim of this operation is to stabilize the anterior pelvic ring fractures on both sides and the sacral fracture on the right using robotically assisted screw osteosynthesis and to restore the mobility of the patient.

INDICATIONS

The indications arise from the patient's very severe pain, resulting immobility under conservative treatment measures and a fragility fracture of the pelvis grade II (FFP II).

CONTRAINDICATIONS

Typical contraindications for this type of operation are the same as for conventional techniques (mainly infection and swelling).

SURGICAL TECHNIQUE

Performed in the 3D navigation hybrid operating theatre Robotic Suite with the following components: navigation unit "Curve Navigation System", movable robotic 3D cone beam computed tomography (CBCT) "Loop‑X", robotic arm "Cirq Arm System" and wall monitor "BUZZ" (Brainlab, Munich, Germany). The individual surgical steps are explained in the video online (English).

FOLLOW-UP TREATMENT

Full weight bearing, pain medication according to the World Health Organization (WHO) stage scheme, physiotherapy after the first postoperative day.

EVIDENCE

Navigated and robotically assisted techniques are mainly used on the spine. These techniques are also increasingly being used on the pelvis, whereby very high levels of accuracy can also be achieved.

Porous threaded titanium implant screws have higher insertional torque compared to standard screws

PURPOSE

Posterior pelvic ring screw back out and loss of fixation may result from poor screw purchase, prevalent in geriatric pelvic ring injuries where the cancellous bone is often osteoporotic. To reduce screw back out, there has been increasing use of porous threaded titanium implant (PTTI) screws for posterior pelvic fixation rather than standard cannulated, buttress threaded screws. This study aims to assess the insertional torque of PTTI screws compared to standard cannulated screws as there is limited evidence regarding the biomechanical fixation profiles among screws.

METHODS

Fifteen orthopedic trauma surgeons inserted screws into a validated surrogate for osteoporotic cancellous bone. Insertional torque was measured during screw placement in three separate scenarios for each surgeon: (1) placement of a standard 7.3 mm (mm) screw into a new bone model, (2) placement of a PTTI screw into a new bone model, and (3) placement of a PTTI screw through a previously placed 7.3 mm screw hole from which it was removed (rescue screw). The insertional torque was calculated across all surgeons and analyses were conducted comparing scenarios (1) and (2), and (1) and (3).

RESULTS

The average insertional torque of 7.3 mm screws was 0.358 ± 0.223 Nm, and the maximum insertional torque was 0.627 ± 0.365 Nm. The average insertional torque for the PTTI screws was 0.929 ± 0.551 Nm, 2.59 times more than that of the 7.3 mm screw (p < 0.001) while the maximum insertional torque was 1.877 ± 0.671 Nm, 2.99 times that of the standard screw (p < 0.001). When placed into the prior 7.3 mm screw hole (rescue), the PTTI screws generated an average insertional torque of 0.711 ± 0.405, still 1.99 times greater than that of the 7.3 mm screw (p < 0.001), and maximum torque of 1.607 ± 0.427 Nm, 2.56 times greater than the standard screw (p < 0.001).

CONCLUSION

Significantly greater maximum and average insertional torque were generated with the PTTI screws compared to the standard screws, even when used as a rescue screw in cancellous bone models. Further studies assessing clinical outcomes and failure rates with PTTI screws will better define their clinical utility.

Dose-Volume Constraints for Thoracic, Abdominal, and Pelvic Carbon Ion Radiotherapy: A Literature Review

BACKGROUND

Applying dose-volume constraints is extremely important in ensuring the safe use of radiotherapy. However, constraints for carbon ion radiotherapy (CIRT) have not been established yet. This review aims to summarize dose-volume constraints for thoracic, abdominal, and pelvic CIRT that have been identified through previous research based on the Japanese models for relative biological effectiveness (RBE).

RESULTS

Constraints are reported for the lungs, liver, stomach, gastrointestinal tract, rectum, sigmoid, bladder, nerves, rib, femoral head, sacrum, and skin. The constraints are classified into hard and soft to aid in determining whether priority should be given to the target coverage or organ-at-risk (OAR) sparing during treatment planning.

CONCLUSIONS

Further research is necessary to verify the applicability of the reported constraints and to identify constraints for the OARs that have not been investigated yet.

Is patient-reported outcome after treatment of unstable pelvic ring injuries related to pelvic symmetry? A prospective study

PURPOSE

To determine the relation between pelvic symmetry, as measured by the cross-measurement technique, and patient-reported outcome measures (PROMs) in terms of functional status and health-related quality of life.

METHODS

In this prospective cohort study, X and Y measurements were taken according to the cross-measurement technique on AP radiographs of patients who were treated for an unstable pelvic ring injury in a level-1 trauma center. Patients completed PROMs at the time of admission (recalled pre-injury score) and one year following their injury, reporting their functional status with the Short Musculoskeletal Function Assessment (SMFA-NL), specifically the lower extremity dysfunction (LED), problems with daily activities (PDA) and mental and emotional problems (MEP) subscales, and quality of life with EuroQol-5D (EQ-5D). Subgroup analyses were also performed. PROMs were used to analyze the relation between pelvic symmetry and patient-reported outcome, using Spearman's Rank correlation coefficients.

RESULTS

A total of 130 patients (mean age 58 (SD18) years) with an unstable pelvic ring injury were included, of which 95 (73%) sustained type-B injuries and 35 (27%) type-C injuries. Sixty-three (49%) patients were treated operatively. The median pelvic symmetry ratio was 1.01 (IQR: 0.05). Weak or no correlations were found between the pelvic symmetry scores and the outcome measurements (Spearman's correlation coefficients: LED r = 0.09; PDA r = 0.11; MEP r=-0.02; and EQ-5D r=-0.08). Subgroup analyses revealed no correlations.

CONCLUSIONS

No significant relation was found between pelvic symmetry, measured radiologically, and functional status and health-related quality of life, one year following an unstable pelvic ring injury.

Low Rate of Teriparatide Supplementation for the Treatment of Osteoporotic Pelvic Fractures in Elderly Females

Background

Osteoporotic pelvic fractures in the elderly lead to pain and immobility resulting in decreased quality of life and worsening frailty. Teriparatide has been shown to shorten time to fracture union, diminish pain, and improve mobilization. At our hospital, this medication is prescribed by an outpatient endocrinologist or geriatrician. We hypothesize that elderly female patients sustaining low energy lateral compression (LC) pelvic fractures are not given Teriparatide. This study reports rates of successful Teriparatide initiation and looks for areas of improvement.

Materials and Methods

A retrospective chart review of stable LC pelvic fractures admitted to a single urban academic level 1 trauma center from January 2012 to February 2021 was conducted. Females over 60 years old with stable LC pelvic fractures were included. Males and those aged less than 60 were excluded.

Results

118 females with mean age of 79.1 ± 10.5 were included. Fourteen patients were not eligible for Teriparatide due to medical history, leaving 104 eligible patients. Twenty-eight patients (23.7%) had previous dual energy X-ray absorptiometry (DEXA) scans with mean T-scores of -3.14 ± 1.1 and 61% had Medicare insurance. Orthopaedic services recommended Teriparatide in 100% of cases. Geriatricians or endocrinologists documented evaluations for Teriparatide in 18 (17%), prescribed in 10 (9.6%), and initiated in 7 (6.7%) patients. Insurance type did not significantly differ among those that initiated Teriparatide and those that did not (p-0.10). Insurance did not approve the medication in 2 instances and in 1 instance it was discontinued at follow-up.

Conclusion

Despite level 1 evidence of Teriparatide's benefit for elderly osteoporotic women with low energy LC pelvic fractures, we failed to initiate treatment in 93% of eligible patients. Barriers to initiation included low rates of medical evaluation for its use and failure of insurance coverage. There are opportunities for multidisciplinary collaboration to increase evaluation for and initiation of Teriparatide.

Level of Evidence

Cohort Retrospective (level III evidence).

Innovative development of robot reduction system in geriatric pelvic fractures: A single-center case series in Beijing, China

Displaced fragility fractures of the pelvis (FFP) pose significant challenges in orthopaedic trauma, owing to patient comorbidities, deteriorating bone quality, and surgical complexities. Despite technological advancements, no robotic methods have been documented for displaced FFP management. To address this, we introduced an advanced robot-assisted fracture reduction system, comprising a tracking device, path planning software, and robotic arms. This study evaluated fifteen consecutive patients with displaced FFP (average age 80.4 ± 9.1 years), who underwent robot-assisted reduction and internal fixation (RARIF) between January 2022 and May 2023. All were categorized as Rommens FFP type III, with a median time of 6 days (range 4-11) from injury to surgery. Operative times averaged 165 ± 44 min, with median blood loss of 50 mL. Postoperative radiographs showed all patients achieved excellent or good reductions as per Matta criteria, marking a 100 % success rate. A 6-month follow-up revealed an average modified Majeed score of 81.4, with 85.7 % of patients rated excellent or good. All fractures healed without complications. Leveraging our intelligent system, RARIF proves to be a safe and effective approach for displaced FFP, facilitating postoperative pain alleviation and early mobilization despite compromised health and bone conditions. This approach may revolutionize the management of FFP in an increasingly aging population, signaling a significant shift in therapeutic strategies. Translational Potential of this Article: Elderly patients with displaced FFP often present complex surgical challenges due to comorbidities and poor bone quality, complicating reduction procedures and often leading to ineffective fixation. Addressing these challenges, we have developed an innovative robot-assisted fracture reduction system, offering a practical alternative to conventional methods. This system optimizes the applied force and direction during the reduction process, thereby reducing the needs for manual and repetitive attempts. Our report, detailing the successful implementation of this technique in 15 FFP cases, signifies a considerable leap forward in the field of orthopaedic surgery. This technique notably benefits the elderly population, a group traditionally marginalized in receiving care for complex orthopedic conditions.

Does regional implementation of a clinical pathway for older adult patients with pelvic fragility fractures after low-energy trauma improve patient outcomes (PELVIC): a multicentre, stepped-wedge, randomised controlled trial

INTRODUCTION

Patients with pelvic fragility fractures suffer from high morbidity and mortality rates. Despite the high incidence, there is currently no regional or nationwide treatment protocol which results in a wide variety of clinical practices. Recently, there have been new insights into treatment strategies, such as early diagnosis and minimally invasive operative treatment. The aim of this study is to implement an evidence-based and experience-based treatment clinical pathway to improve outcomes in this fragile patient population.

METHODS AND ANALYSIS

This study will be a regional stepped-wedge cluster randomised controlled trial. All older adult patients (≥50 years old) who suffered a pelvic fragility fracture after low-energetic trauma are eligible for inclusion. The pathway aims to optimise the diagnostic process, to guide the decision-making process for further treatment (eg, operative or conservative), to structure the follow-up and to provide guidelines on pain management, weight-bearing and osteoporosis workup. The primary outcome is mobility, measured by the Parker Mobility Score. Secondary outcomes are mobility measured by the Elderly Mobility Scale, functional performance, quality of life, return to home rate, level of pain, type and dosage of analgesic medications, the number of falls after treatment, the number of (fracture-related) complications, 1-year and 2-year mortality. Every 6 weeks, a cluster will switch from current practice to the clinical pathway. The aim is a total of 393 inclusions, which provides an 80% statistical power for an improvement in mobility of 10%, measured by the Parker mobility score.

ETHICS AND DISSEMINATION

The Medical Research Ethics Committee of Academic Medical Center has exempted the PELVIC study from the Medical Research Involving Human Subjects Act (WMO). Informed consent will be obtained using the opt-out method and research data will be stored in a database and handled confidentially. The final study report will be shared via publication without restrictions from funding parties and regardless of the outcome.

TRIAL REGISTRATION NUMBER

NCT06054165.

PROTOCOL VERSION

V.1.0, 19 July 2022.

The acceptability and accessibility of magnetic walking aids when used in hospital: a randomised trial

PURPOSE

Poor walking aid compliance and accessibility can put the user at an increased risk of falls. We explored the acceptability and accessibility of magnetic walking aids (MWAs) compared to standard walking aids (SWAs) in inpatients following joint replacement.

METHODS AND MATERIALS

A non-blinded pilot randomised controlled trial was conducted. Inpatients following hip or knee replacement were randomly allocated to the MWA group (n = 20) or the SWA group (n = 20). Primary outcomes were the acceptability and accessibility of the MWA compared to the SWA during their inpatient stay, assessed through made-to-measure patient and staff questionnaires. The secondary outcome was the number of times the walking aid came to rest on the floor, measured using logbooks kept by participants.

RESULTS

The participants in the MWA group reported their aid was more easily accessible, and that they were more likely to use their aid in their room than participants in the SWA group. Participants in the MWA group dropped their aid less often, with a median of 0.3 walking aid drops per day in the MWA group and 1.1 drops per day in the SWA group (p = 0.002).

CONCLUSION

The results of this pilot randomised trial suggest MWAs may be an acceptable and inexpensive intervention for improving walking aid accessibility and adherence and reducing walking aid drops when compared to SWAs.

Clinically relevant bleeding risk in low-energy fragility fractures of the pelvis in elderly patients

INTRODUCTION

Low-energy fragility fractures of the pelvis (FFP) are an underestimated entity, yet increasing in incidence. The bleeding risk for pelvic fractures in high-energy trauma is well known, resulting in adequate treatment guidelines and clear protocols. This is not the case for FFPs but this risk is presumably low. This study aims to investigate the clinically relevant bleeding risk, in patients older than 50 years with a fragility fracture of the pelvis admitted to the emergency department (ED).

METHOD

A retrospective cohort study was conducted of consecutive patients aged over 50 years with a FFP due to low-energy trauma (LET) presented to the ED of a single trauma center (North-West Clinics in Alkmaar, The Netherlands) between January 2018 and August 2022. The primary outcome was the percentage of patients requiring blood transfusion, or invasive procedures such as coiling by the interventional radiologists or damage control surgery, due to bleeding. Secondary outcomes were the mean decrease of hemoglobin and mortality.

RESULTS

In total, 322 consecutive patients with a mean age of 80 years of which 84% female were included. In total 66% was admitted to the hospital and seven patients underwent surgical intervention. Three cases (0.9%) of potentially clinically relevant bleeding were observed. These three cases needed a blood transfusion, without other interventions, and were all admitted with a low hemoglobin level without signs of hemodynamic instability. No invasive interventions were noted.

CONCLUSION

The risk of bleeding in FFP's is very low with very few patients requiring blood transfusions (< 1%) and with no invasive interventions due to bleeding. Since the risk of clinically relevant bleeding is low, the significance of repeated Hb checks and CECT may be questionable. The effect of these diagnostics in case of absence of hemodynamic instability and above borderline normal Hb levels needs to be investigated in further studies.

Intensive rehabilitation after pelvic and hip fractures: a comparative retrospective study

Purpose

Pelvic fracture (PF) is common, especially among older patients, and its prevalence increases over time. In contrast to hip fracture (HF), the literature on rehabilitation after PF is scant, mandating a study of the outcomes of rehabilitation in patients with PF. The present study compared patients who underwent intensive rehabilitation following HF or PF.

Methods

A retrospective study of patients 65 years of age and older who underwent intensive rehabilitation in the Geriatrics Department. Data were collected on patients with PF, while data on patients with HF were taken from an earlier study. All patients in both groups suffered from low-energy trauma. Rehabilitation outcomes were measured using the Montebello Rehabilitation Factor Score-revised (MRSF-R).

Results

144 PF patients were compared with 138 HF patients. The mean age of the patients in the HF group was 82.5 ± 7.1 compared to 81.5 ± 6.9 in the PF group (p = 0.230). Females comprised 77.5% of the patients in the HF group and 90.3% in the PF group (p = 0.04). All patients in the HF group underwent surgical repair of their fracture, while all patients in the PF group had non-surgical treatment. More patients in the HF sample had a nursing caregiver prior to the fracture (92.0% vs. 60.4%, p < 0.001), had a higher Charlson Co-morbidity Index total score (2.1 ± 1.9 vs. 1.6 ± 1.7, p = 0.13), developed more delirium (21.7% vs. 8.3%, p = 0.16), more infections (29.0% vs. 11.1%, p < 0.002), and more cardiovascular complications (23.9% vs. 5.6%, p < 0.001) during hospitalization. They had longer hospital stays (20.9 ± 7.5 vs. 18.2 ± 7.7 days, p = 0.0007), and had a higher mortality rate (13.8% vs. 6.3%, p = 0.037) over the first year following the fracture than the PF group. A similar rate of patients in both groups (64.5% vs. 60.4%, p = 0.483) had successful intensive rehabilitation. In the PF group only cognitive state was an independent predictor of successful rehabilitation, with each additional point in the Mini Mental State Examination (MMSE) increasing the patient's chance of reaching an MRFS-R score ≥ 50 by 20.5%.

Conclusion

Despite slightly different characteristics in the two groups, the results of intensive rehabilitation were similar. Cognitive state was the only independent factor that affected achievement of a better rehabilitation outcome. With the increasing rate of PF, more studies should focus on rehabilitation in this patient population.

Predictors of mortality one year after pelvic fractures in an older population: a retrospective cohort study

The goal was to investigate if patient characteristics can be used to predict 1-year post-fracture mortality after pelvic fracture. Multivariate logistic regression identified male gender, comorbidities and presence of in-hospital complications as predictors of 1-year mortality.

PURPOSE

Osteoporotic pelvic fractures have significant mortality and morbidity in the older population. The aim of this study was to investigate the factors predicting one-year mortality of patients sustaining a low-impact pelvic fracture (pelvic ring and acetabulum).

METHODS

A total of 282 patients aged ≥ 65 years presenting with a low-energy pelvic ring (n =254) or acetabular (n =28) fracture to the emergency department at the University Hospitals Leuven were included. Demographic and clinical data were retrospectively collected and predictors for mortality one year after pelvic ring fractures were evaluated.

RESULTS

The one-year mortality after osteoporotic pelvic ring fractures and acetabular fractures was respectively 20.4% (95% CI 15.7-26.0) and 14% (95% CI 4.0-32.7). Multivariate logistic regression adjusted for confounders identified male gender (OR 3.18; 95% CI (1.06-9.49), p =0.038), a higher number of comorbidities (OR 1.5; 95% CI (1.16-1.95), p =0.002) and in-hospital complications (OR 5.00; 95% CI (1.39-17.97), p =0.014) as independent predictors of one-year mortality after pelvic ring fractures.

CONCLUSION

The one-year mortality after low-energy pelvic is high and can be predicted by different patient characteristics. These findings can guide pelvis fracture treatment decisions in the older population.

Weight-bearing Guidelines for Common Geriatric Upper and Lower Extremity Fractures

PURPOSE OF REVIEW

The purpose of this review paper is to summarize current weight-bearing guidelines for common geriatric fractures, around weight-bearing joints, of the upper and lower extremities.

RECENT FINDINGS

There is an increasing amount of literature investigating the safety and efficacy of early weight-bearing in geriatric fractures, particularly of the lower extremity. Many recent studies, although limited, suggest that early weight-bearing may be safe for geriatric distal femur and ankle fractures. Given the limited data pertaining to early weight-bearing in geriatric fractures, it is difficult to establish concrete weight-bearing guidelines in this population. However, in the literature available, early weight-bearing appears to be safe and effective across most injuries. The degree and time to weight-bearing vary significantly based on fracture type and treatment method. Future studies investigating postoperative weight-bearing protocols should focus on the growing geriatric population and identify methods to address specific barriers to early weight-bearing in these patients such as cognitive impairment, dependence on caregivers, and variations in post-acute disposition.

Adverse outcomes following pelvic fracture: the critical role of frailty

PURPOSE

Pelvic fractures among older adults are associated with an increased risk of adverse outcomes, with frailty likely being a contributing factor. The current study endeavors to describe the association between frailty, measured using the Orthopedic Frailty Score (OFS), and adverse outcomes in geriatric pelvic fracture patients.

METHODS

All geriatric (65 years or older) patients registered in the 2013-2019 Trauma Quality Improvement Program database with an isolated pelvic fracture following blunt trauma were considered for inclusion. An isolated pelvic fracture was defined as any fracture in the pelvis with a lower extremity AIS ≥ 2, any abdomen AIS, and an AIS ≤ 1 in all other regions. Poisson regression models were employed to determine the association between the OFS and adverse outcomes.

RESULTS

A total of 66,404 patients were included for further analysis. 52% (N = 34,292) were classified as non-frail (OFS 0), 32% (N = 21,467) were pre-frail (OFS 1), and 16% (N = 10,645) were classified as frail (OFS ≥ 2). Compared to non-frail patients, frail patients exhibited a 88% increased risk of in-hospital mortality [adjusted IRR (95% CI): 1.88 (1.54-2.30), p < 0.001], a 25% increased risk of complications [adjusted IRR (95% CI): 1.25 (1.10-1.42), p < 0.001], a 56% increased risk of failure-to-rescue [adjusted IRR (95% CI): 1.56 (1.14-2.14), p = 0.006], and a 10% increased risk of ICU admission [adjusted IRR (95% CI): 1.10 (1.02-1.18), p = 0.014].

CONCLUSION

Frail pelvic fracture patients suffer from a disproportionately increased risk of mortality, complications, failure-to-rescue, and ICU admission. Additional measures are required to mitigate adverse events in this vulnerable patient population.

Epidemiology of fragility fracture of the pelvic ring: a regional population-based study in Northern Japan

Using a regional population-based dataset in Japan, we identified the epidemiological characteristics of patients with fragility fractures of the pelvic ring. The incidence rate was 35.5-121.2 per 100,000 population/year. Age-specific incidence increased after 75 years. This fracture is associated with worse prognosis in terms of walking function and life expectancy.

PURPOSE

Fragility fracture of the pelvic ring (FFP) is common among older patients; however, little information is available on the epidemiology of FFP worldwide. We aimed to identify the epidemiological characteristics of patients with FFP using a regional population-based dataset in Japan.

METHODS

This descriptive epidemiologic study analyzed data obtained from clinical information of patients diagnosed with FFP from January 1, 2011 through December 31, 2020 at a regional dominant hospital in Japan. We calculated the crude and age-adjusted annual incidences and the age-specific incidence and described epidemiological date, injury characteristics, walking ability before and after FFP, and mortality. Additionally, we investigated factors associated with walking ability.

RESULTS

We identified 66 FFP patients, of whom 55 (83.3%) were female, with a mean age of 82.2 years. The crude annual incidence of FFP ranged from 35.5-121.2 per 100,000 population/year during the study period. The age-specific incidence of FFP increased after 75 and 80 years in females and males, respectively. In total, 44.4% of patients had declines in walking ability 1 year after their FFP injuries. Patients with declining walking ability were significantly older (p < 0.01), and age ≥ 80 years was significantly associated with the decline in walking ability (p < 0.01). The 1- and 5-year mortality rates were 15.4% and 39.9%, respectively.

CONCLUSION

The incidence rate of FFP was 35.5-121.2 per 100,000 population/year. Age-specific incidence of FFP increased after 75 years. Our results indicate that FFP is associated with worse prognosis of walking function and life expectancy.

Pelvic Ring Fractures in Older Adult Patients-Assessing Physician Practice Variation among (Orthopedic) Trauma Surgeons

PURPOSE

Pelvic fractures in older adults are a major public health problem and socioeconomic burden. The standard of care has changed over the past years, and there is limited consensus on which patients benefit from surgical fixation. There is currently no nationwide treatment protocol to guide the decision-making process. Therefore, the aim of this survey was to provide more insight into if, when, and why patients with a fragility fracture of the pelvis (FFPs) would be considered for additional imaging and surgical fixation by treating physicians.

METHODS

An online clinical vignette-based survey of hypothetical scenarios was sent out to all orthopedic and trauma surgeons in the Netherlands. The questionnaire comprised multiple-choice questions and radiographic images. Differences between subgroups were calculated using the X2 test or the Fisher exact test.

RESULTS

169 surgeons responded to the survey, with varying levels of experience and working in different types of hospitals. In a patient with a simple pubic ramus fracture and ASA 2 or ASA 4, 32% and 18% of the respondents would always advise a CT scan for further analysis. In the same patients, 11% and 31% of the respondents would not advise a CT scan, respectively. When presented with three cases of increasing severity of co-morbidity (ASA) and/or increasing age and/or different clinical presentation of an FFP type 3c on a CT scan, an increasing number of respondents would not consider surgical fixation. There was significant variation in practice patterns between the respondents who do not work in a hospital performing pelvic and acetabular (P&A) fracture surgery and those who do work in a P&A referral hospital. Most respondents (77%) refer patients 1-5 times a year to an expert center for surgical fixation.

CONCLUSION

There is currently a wide variety of clinical practices regarding the imaging and management of FFPs, which seems to be influenced by the type of hospital the patients are presented to. A regional or national evidence-based treatment protocol should be implemented to ensure a more uniform approach.

Understanding the impact of radiotherapy related insufficiency fractures and exploring satisfaction with two existing patient reported outcome measures: A qualitative interview study

Introduction

Radiotherapy related insufficiency fractures (RRIFs) occur in approximately 10-15% of cancer survivors who underwent pelvic radiotherapy. Little research has been conducted to explore the impact of RRIFs on quality of life (QOL). Patient reported outcome measures (PROMs) are often used in oncology to measure side effects and QOL. The study aims to understand the influence of RRIF on QOL and to discover whether available PROMs address their needs.

Materials and methods

Twenty-five patients randomly selected from a Tertiary Oncology Centre bone health clinic database of patients referred with RRIFs were approached. Interested patients were sent two existing PROMs and a patient information sheet. Eleven patients agreed to take part in a semi-structured interview to explore their experiences and their opinion on the existing PROMs. Telephone interviews were conducted. Interviews were audio recorded, transcribed, and analysed using thematic analysis.

Results

Four themes were identified: 1) Route to diagnosis, 2) management of RRIFs and 3) resilience all had an impact on 4) QOL. Additionally, participants discussed PROMs and how they might be integrated into clinical practice. The data highlights the wide ranging QOL impacts experienced and highlights potential areas for improvement in terms of diagnosis and management pathways.

Discussion

The impact of RRIFs on QOL is considerable. Participants highlighted key areas for improvement including the provision of more information, more access to support and improved management pathways. Participants also highlighted the potential benefits of PROMs but suggested existing measures could be improved.

Posterior pelvic ring involvement detected with CT taken within a week of admission in acute fragility fractures of the pelvis (FFP) does not predict failure of conservative treatment: a retrospective cohort study

BACKGROUND

Acute low energy pubic rami fractures in the elderly receive primarily conservative treatment. There is debate to what extent posterior ring involvement, which is detected superiorly by CT compared to X-ray, has an impact on outcome and may require modified treatment. We want to demonstrate if posterior ring involvement has an influence on different types of outcome in primarily conservatively treated acute FFP, questioning the usefulness of early CT. Additionally we analysed the early fracture pattern in cases where conservative treatment failed with need for secondary surgery.

METHODS

A retrospective cohort study of 155 consecutive patients, recruited between 2009 and 2016, aged over 65 years diagnosed with an acute LE-PFr on X-ray at the emergency department of a single, level-one trauma centre and receiving an early CT. A set of outcome parameters was compared between patients with an isolated pubic rami fracture (CTia) and patients who had a combined posterior pelvic ring fracture (CTcp).

RESULTS

There were 155 patients of whom 85.2% were female with a mean age of 83 years. 76.8% of patients living at home returned home and 15.5% moved to a nursing home. Mortality rate during hospitalisation was 6.4% and 14.8% at one year post-trauma. Secondary fracture displacement occurred in 22.6%. Secondary surgery was performed in 6 cases (3.9%). Median hospitalisation length of stay was 21 days (range 0 to 112 days). There was no significant association between the subgroups and change in residential status (p = 0.65), complications during hospitalisation (p = 0.75), mortality rate during admission (p = 0.75) and at 1 year (p = 0.88), readmission within 30 days (p = 0.46) and need for secondary surgery (p = 0.2). There was a significant increased median length of stay (p = 0.011) and rate of secondary displacement (p = 0.015) in subgroup CTcp. Secondary displacement had no impact on in-hospital complications (p = 0.7) nor mortality rate during admission (p = 0.79) or at 1 year (0.77). Early CT in patients who underwent secondary surgery showed stable B2.1 lesions in 4 of 6 cases.

CONCLUSIONS

Our data suggest that early CT in patients with conservatively treated acute LE-PFr in order to detect posterior lesions, has limited value in predicting failure of conservative treatment.

Does the residual displacement of pelvic ring affect the functional outcome in pelvic ring injures?

PURPOSE

The effects of residual displacement on the functional outcome of the patient are not distinctly known and the acceptability criteria of residual displacement of the pelvic ring remain disputed. The purpose of this study is to evaluate the effect of residual displacement on functional outcome in pelvic ring injuries.

MATERIALS AND METHODS

A total of 49 patients with pelvic ring injuries (both operative and non-operative) were followed up for six months. Anteroposterior (AP), Vertical and rotational displacements were measured at admission, after surgery and at six months. Resultant displacement (vector addition of AP and vertical displacement) was taken for comparison. Displacement was graded as excellent, good, fair and poor according to Matta's criteria. Functional outcome assessment was done at six months using Majeed score. Work adjusted Majeed score was calculated for non-working patients by taking the percentage score.

RESULTS

We compared the means of residual displacement with functional outcome (Excellent/Good/Fair) and found that there was no significant difference between the groups in operative (P=0.33) or non-operative patients (P=0.09). This showed that patients with relatively higher residual displacement also had satisfactory functional outcomes. The functional outcomes were compared after dividing the residual displacement into 2 groups: <10 mm and >10 mm and no significant difference was found in outcomes for either operative or non-operative patients.

CONCLUSION

Up to 10 mm of residual displacement is acceptable in pelvic ring injuries. More prospective studies with a longer follow up are needed for determination of correlation between reduction and functional outcome.

Epidemiology and burden of pelvic fractures: Results from the Global Burden of Disease Study 2019

INTRODUCTION

Pelvic fracture is a severe injury resulting in high mortality and disability rate, and brought heavy health burden. However, existing research conclusions only restricted to the national level while global estimation of pelvic fracture was lack. We aimed to estimate the global incidence, prevalence, and years lived with disability (YLDs) of pelvic fracture by region, age, gender, cause and sociodemographic index (SDI).

MATERIALS AND METHODS

Publicly available data was gained based on the Global Burden of Disease Study (GBD) 2019. We calculated the estimated annual percent change (EAPC) to analyze the temporal trends of pelvic fractures from 1990 to 2019. Incidence, prevalence and YLDs were analyzed by region, age, gender, cause and SDI. Spearman's rank order correlation was used to determine the correlation between SDI and incidence, prevalence and YLDs.

RESULTS

Globally, there were about 6 million incident cases, 18.8 million prevalent cases and 3.2 million YLDs cases of pelvic fractures for both sexes in 2019. The incidence number increased over 40% compared to 1990. However, the age standardized rate of incidence (ASIR) (EAPC = -0.22; 95% CI, -0.38 to -0.05), prevalence (ASPR) (EAPC = -0.42; 95% CI, -0.51 to -0.32) and YLDs (ASYR) (EAPC = -0.41; 95% CI, -0.50 to -0.32) all presented downward trends. Males had higher ASIR, ASPR and ASYR than females in each year from 1990 to 2019. The incidence, prevalence and YLDs rates were higher in males in early adulthood but exceeded in females at older age. A positive correlation was observed between ASIR and SDI (rho = 0.3732, p < 0.01). Regions with higher SDI tended to have higher ASIR, ASPR and ASYR than lower SDI regions. Falls and road injuries were the major causes of pelvic fracture at all ages and during the whole period.

CONCLUSION

The global health burden of pelvic fracture still remained high during the past thirty years. More policies and strategies are needed to face the challenge brought by population growth and aging.

Effects of dose and dose-averaged linear energy transfer on pelvic insufficiency fractures after carbon-ion radiotherapy for uterine carcinoma

BACKGROUND AND PURPOSE

The correlation between dose-averaged linear energy transfer (LETd) and its therapeutic or adverse effects, especially in carbon-ion radiotherapy (CIRT), remains controversial. This study aimed to investigate the effects of LETd and dose on pelvic insufficiency fractures after CIRT.

MATERIAL AND METHODS

Among patients who underwent CIRT for uterine carcinoma, 101 who were followed up for > 6 months without any other therapy were retrospectively analyzed. The sacrum insufficiency fractures (SIFs) were graded according to the Radiation Therapy Oncology Group/European Organization for Research and Treatment of Cancer toxicity criteria. The correlations between the relative biological effectiveness (RBE)-weighted dose, LETd, physical dose, clinical factors, and SIFs were evaluated. In addition, we analyzed the association of SIF with LETd, physical dose, and clinical factors in cases where the sacrum D50% RBE-weighted dose was above the median dose.

RESULTS

At the last follow-up, 19 patients developed SIFs. Receiver operating characteristic curve analysis revealed that the sacrum D50% RBE-weighted dose was a valuable predictor of SIF. Univariate analyses suggested that LETd V10 keV/µm, physical dose V5 Gy, and smoking status were associated with SIF. Cox regression analysis in patients over 50 years of age validated that current smoking habit was the sole risk factor for SIF. Therefore, LETd or physical dose parameters were not associated with SIF prediction.

CONCLUSION

The sacrum D50% RBE-weighted dose was identified as a risk factor for SIF. Additionally, neither LETd nor physical dose parameters were associated with SIF prediction.

Polytrauma in the Geriatric Population: Analysis of Outcomes for Surgically Treated Multiple Fractures with a Minimum 2 Years of Follow-Up

INTRODUCTION

This study analyzed the clinical and radiological outcomes of geriatric polytrauma patients who had multiple fractures surgically treated and a minimum of 2 years of follow-up.

METHODS

Eighty-six geriatric patients with polytrauma and multiple fractures which were surgically treated in orthopedics and who had a minimum of 2 years of follow-up were retrospectively analyzed. Patients' demographic characteristics, comorbidities, and follow-up time were recorded. The mechanism of injury, fracture type and location, Injury Severity Score (ISS), American Society of Anesthesiologists (ASA) score, duration of hospital stay, complications, and 1-year mortality were also recorded. Fracture union, implant failure, and refractures/misalignment were analyzed from radiographs.

RESULTS

There were 34 (39.5%) male and 52 (60.5%) female patients. Mean age was 73.5 years with an average follow-up time of 32.9 months. Patients had more low-energy traumas and more lower extremity, comminuted fractures. On the contrary, high-energy traumas and femur/pelvic fracture surgeries had higher associated mortality. The mean ISS score was 26.3. The most common ASA score was ASA 3 (75.8%). The most common clinical and radiological complications were prolonged wound drainage and implant failure. The total 1-year mortality rate was 22.1%. Patients with high ASA scores and patients with lower extremity fractures (femoral/pelvic fractures) also had significantly increased mortality rates. No significant relation was detected between mortality and ISS, fracture type, number of fractures, and duration of hospital stay.

CONCLUSION

Orthopedic surgeons must be alert about the possible complications of femoral fractures and comminuted fractures including pelvic girdle. Surgically treated, multifractured patients with high-energy trauma, advanced age, and high ASA scores are also at risk for mortality regardless of the ISS, comorbidities, and duration of hospital stay. Pulmonary thromboemboli must be kept in mind as a significant complication for mortality.

Indications for surgical fixation of low-energy pelvic ring fractures in elderly: a systematic review

INTRODUCTION

There are no generally accepted criteria for when and how to fixate osteoporotic pelvic ring fractures in elderly. This systemic review aims to summarize the currently available literature regarding the indications and methods for surgical fixation of fragility fractures of the pelvic ring in elderly patients after low-energy trauma.

MATERIALS AND METHODS

The Pubmed and Embase databases were searched using the key words pelvic fractures, geriatric, fragility, osteoporosis, and surgical fixation, and their synonyms. Extracted data including the indication, method of operative fixation, and post-operative outcomes (pain levels, mobility, complications and mortality) were analyzed using descriptive statistics. The studies were too heterogeneous to perform a meta-analysis.

RESULTS

Eleven cohort studies (3 comparative and 8 noncomparative) were included. The methodological quality was poor to moderate; the studies were heterogeneous regarding study design and reported outcomes. In all included studies operative treatment for all fracture types was preceded by a period of conservative treatment comprising physiotherapy-guided full weight-bearing. Time to surgery differed widely. For posterior ring fixation, the majority of the included studies used minimally invasive surgery with trans-iliosacral screws. Five studies described a form of additional fixation of the anterior pelvic ring but did not report the indications.

CONCLUSIONS

Fixation of low-energy pelvic ring fractures in elderly is commonly performed after a period of conservative treatment, with persistent pain as the most frequent indication for fixation. Fracture classification based on stability seems to be of secondary importance. Timing for surgical fixation of the pelvic ring fracture in elderly patients remains diverse. Large well-designed comparative prospective studies and randomized controlled trials are needed to provide clearly substantiated guidelines.

Pain Intensity and Degree of Disability after Fragility Fractures of the Pelvis

Background and objectives: Fragility fractures of the pelvis (FFP) are of increasing interest lately, being associated with a loss of mobility and affecting the quality of life. The aim of our study was to investigate the effect of FFP on disability and pain in patients, after one year since injury. Materials and Methods: In the study, we included 76 patients diagnosed with FFP, who were admitted to our trauma department between January 2016 and January 2019, and were above 65 years of age. The Von Korff pain intensity and disability scores were calculated in the hospital at 6 months and after 1 year. Results: Fifty-four patients were female (71%), with an average age of 75.9 ± 7.19 years. Twenty-two patients were male (29%) and had a mean age of 77.22 ± 7.33 years. We did not record significant differences regarding age between the men and women (p > 0.05). Significant improvements appeared between the baseline and the 6 month follow-up; the average pain intensity score at 6 months was 44.94 (SD 21.20) (p < 0.001), and the disability score was 54.30 (SD 21.62). The following average pain intensity and disability scores after 12 months were similar to the values at6 months: 44.48 (SD 21.74) for pain intensity and 52.36 (SD 24.53) for disability. The Von Korff pain score at 6 months and after 1 year depends on gender and on the initial Von Korff pain score (p = 0.02). The Von Korff disability score at 6 months depends on gender, the baseline pain score and the baseline disability score (p = 0.001). Conclusions: our patients reported long-lasting pain that had a severe effect on their daily routines, and they could not return to their normal status prior to injury.

Prospective assessment of key factors influencing treatment strategy and outcome of fragility fractures of the pelvis (FFP)

BACKGROUND

Fragility fractures of the pelvis (FFP) are a clinical entity with an increasing significance in clinical practice. Little is known about the conditions, which influence decision making and outcome.

SETTING

Level I trauma center.

MATERIAL AND METHODS

Prospective assessment of selected parameters of patients, who were admitted with a FFP in a 2-year period. Fractures were classified in accordance with the Rommens and Hofmann classification. Living environment, level of autonomy (independent walking), type of treatment (conservative versus operative), type of surgical technique, European Quality of Life-5 Dimensions-5 Levels (EQ-5D-5L), Short Form-8 Physical Component Score (SF-8 PCS) and Short Form-8 Mental Component Score (SF-8 MCS), Barthel Index, Parker Mobility Score (PMS) and Numeric Rating Scale (NRS) were collected at primary presentation (t1), at discharge (t2) and after 3 (t3) and 12 months (t4). Length of hospital stay, in-hospital complications, surgery-related complications, new osteoporotic fractures and mortality rate within the first year were also registered. The key factors influencing the choice of therapy and outcome were looked for.

RESULTS

110 patients, 99 women (90%) and 11 men (10%), were included in the study. Their mean age was 79.2 years (SD 10 years). Fourteen patients had FFP type I (12.7%), 59 FFP type II (53.6%), 11 FFP type III (10%) and 26 FFP type IV fractures (23.6%). All patients with FFP type I were treated conservatively. 48 patients with FFP types II-IV were treated conservatively and 48 operatively. Patients, who got a conservative outpatient treatment first and were hospitalized later, had higher FFP fracture types at admission. Operatively treated patients were hospitalized at a median of 33.5 days after the beginning of complaints, whereas the median day of admission of the conservative group was the day of trauma (p < 0.001). The operatively treated patients were hospitalized in a worse clinical condition (SF-8 PCS, EQ-5D-5L, autonomy). Length of stay (LoS) of operatively treated patients was significantly longer than of conservatively treated (p < 0.001). There was a tendency to more in-hospital complications in the operative group (p = 0.059). The rate of surgery-related complications (8.3%) was low with only one revision needed. Selected outcome parameters improved during the observation period nearly reaching the level before FFP after 1 year. SF-8 PCS, Barthel index and rate of patients living home were higher in the operative group at t4. The improvement of autonomy (independent walking) between t1 and t4 was significant in the operated group (p = 0.04) but not in the conservative group (p = 0.96). One-year mortality rate was 11.7% with no difference between the fracture types. One-year mortality rate of conservatively treated patients with FFP type II-IV was 13.5% versus 6.9% in the operative group (p = 0.38).

CONCLUSION

Conservative treatment is appropriate in patients with FFP type I as well as in patients with FFP type II, provided that the last ones are hospitalized immediately after the traumatic event. Surgical treatment is recommended in patients with higher fracture types, with delayed presentation or after unsuccessful conservative treatment. In the conservative and operative group, all selected parameters considerably improved between t1 and t4 with a steeper increase in the operative group. The rate of postoperative complications is low. The 1-year mortality rate is the lowest in the operative group. Surgical stabilization of FFP is safe and reliable provided it is performed with care and in the appropriate target group.

What is the long-term clinical outcome after fragility fractures of the pelvis? - A CT-based cross-sectional study

BACKGROUND

Recently, Rommens and Hoffman introduced a CT-based classification system for fragility fractures of the pelvis (FFP). Although fracture characteristics have been described, the relationship with clinical outcome is lacking. The purpose of this study was to get insight into the type of treatment and subsequent clinical outcome after all types of FFP.

METHODS

A cross-sectional cohort study was performed including all elderly patients (≥ 65 years) with a CT-diagnosed FFP, between 2007-2019 in two level 1 trauma centers. Data regarding treatment, mortality and clinical outcome was gathered from the electronic patient files. Patients were asked to complete patient-reported outcome measures (PROMs) regarding physical functioning (SMFA) and quality of life (EQ-5D). Additionally, a standardized multidisciplinary treatment algorithm was constructed.

RESULTS

A total of 187 patients were diagnosed with an FFP of whom 117 patients were available for follow-up analysis and 58 patients responded. FFP type I was most common (60%), followed by type II (27%), type III (8%) and type IV (5%). Almost all injuries were treated non-operatively (98%). Mobility at six weeks ranged from 50% (type III) to 80% type II). Mortality at 1 year was respectively 16% (type I and II), 47% (type III) and 13% (type IV). Physical functioning (SMFA function index) ranged from 62 (type III and IV) to 69 (type II) and was significantly decreased (P=<0.001) compared to the age-matched general population. Quality of life was also significantly decreased, ranging from 0.26 (type III) to 0.69 (type IV).

CONCLUSIONS

FFP type I and II are most common. Treatment is mainly non-operative, resulting in good mobility after six weeks, especially for patients with FFP type I and II. Mortality rates at one year were substantial in all patients. Physical functioning and quality of life was about 20-30% decreased compared to the general population.

Self-rated health status and activities of daily living in the first 12 months after fragility fractures of the pelvis-a prospective study on 134 patients

The aim of this study was to evaluate changes in activities of daily living and self-reported health status in the first year after fragility fractures of the pelvis. We found out that these fractures lead to a significant, long-lasting deterioration of both parameters, comparable with hip fractures.

PURPOSE

The aim of this prospective study was to evaluate the development and to identify influencing factors in activities of daily living (ADL) and self-reported health status (HS) in the first year after fragility fractures of the pelvis (FFP).

METHODS

A total of 134 patients with FFP ≥ 60 years were included. ADL were measured using the Barthel index (BI) and the IADL scale pre-fracture, at 6 weeks, 6 months, and 12 months. HS was evaluated using the EQ-5D questionnaire at 6 weeks, 6 months, and 12 months. Multiple regression analysis and hierarchical linear models were applied to identify influencing factors in ADL and HS.

RESULTS

The BI was 95 pre-fracture, 75 at 6 weeks (p < 0.001), 80 at 6 months (p = 0.178), and 80 at 12 months (p = 0.149). The IADL was 6 pre-fracture, 3 at 6 weeks (p < 0.001), 4 at 6 months (p = 0.004), and 4 at 12 months (p = 0.711). The EQ-5D index was 0.70 at 6 weeks, 0.788 at 6 months (p = 0.158), and 0.788 at 12 months (p = 0.798). Significant influencing factors in the multiple regression analysis were pre-fracture nursing care level for all scores; pre-fracture mobility for BI; and pre-fracture IADL, ASA score, and age for IADL. Significant influencing factors in the hierarchical linear model were pre-fracture nursing care level for all scores; pre-fracture IADL, ASA score, age, and time for IADL; and pre-fracture mobility, sex, and time for the EQ-5D.

CONCLUSION

Our results confirm that FFP lead to a significant, long-lasting deterioration in ADL and HS, comparable with hip fractures.

Factors associated with mortality in older patients sustaining pelvic or acetabular fractures

INTRODUCTION

This study aimed to investigate potential factors, including delay to surgical stabilisation, affecting mortality in older patients sustaining pelvic or acetabular (PA) fractures.

MATERIALS AND METHODS

A retrospective review of the Trauma Audit and Research Network (TARN) database was performed to identify older patients (aged 65 and over) sustaining PA fractures treated surgically in a UK Major Trauma Centre (MTC) between 2015 and 2019. Chi-squared and Fisher tests were used to compare 1-year mortality rates following operative intervention between patients treated within 72 h and after 72 h. Kaplan-Meier curves were used to visualise survival probability; significant predictors of survival were found using Cox proportional hazard models.

RESULTS

Of 564 older patients with PA fractures, 70 met the inclusion criteria. The mean age was 76.1 years. The overall 1-year mortality rate was 20%. When patients were grouped by time to surgery (fracture fixation within or greater than 72 h), there was no statistically significant difference in 1-year mortality. Patients whose surgery was delayed more than 72 h were more likely to have longer hospital stays (p = 0.002) or to have suffered from polytrauma (p = 0.025). Age, Charlson Co-morbidities Index (CCI) and pre-op mobility status were associated with statistically significant differences in overall mortality. The same factors were associated with a significantly increased hazard of death in the multivariate Cox proportional hazards model. Patient gender, mechanism of injury, Injury Severity Score (ISS) > 15 and head injury were not significant predictors of mortality.

CONCLUSION

Surgical intervention within 72 h of injury did not result in decreased mortality in older patients with PA fractures. The 1-year mortality rate between older PA fractures and hip fractures was comparable. Consideration should be given to a combined multidisciplinary approach between orthogeriatric and expert PA surgeons for these patients.

Are Sarcopenia and Myosteatosis in Elderly Patients with Pelvic Ring Injury Related to Mortality, Physical Functioning and Quality of Life?

The purpose of this study was to evaluate the prevalence of sarcopenia and/or myosteatosis in elderly patients with pelvic ring injuries and their influence on mortality, patient-perceived physical functioning and quality of life (QoL). A multicenter retrospective cohort study was conducted including elderly patients aged ≥ 65 treated for a pelvic ring injury. Cross-sectional computed tomography (CT) muscle measurements were obtained to determine the presence of sarcopenia and/or myosteatosis. Kaplan–Meier analysis was used for survival analysis, and Cox proportional hazards regression analysis was used to determine risk factors for mortality. Patient-reported outcome measures for physical functioning (SMFA) and QoL (EQ-5D) were used. Multivariable linear regression analyses were used to determine the effect of sarcopenia and myosteatosis on patient-perceived physical functioning and QoL. Data to determine sarcopenia and myosteatosis were available for 199 patients, with a mean follow-up of 2.4 ± 2.2 years: 66 patients (33%) were diagnosed with sarcopenia and 65 (32%) with myosteatosis, while 30 of them (15%) had both. Mortality rates in patients at 1 and 3 years without sarcopenia and myosteatosis were 13% and 21%, compared to 11% and 36% in patients with sarcopenia, 17% and 31% in patients with myosteatosis and 27% and 43% in patients with both. Higher age at the time of injury and a higher Charlson Comorbidity Index (CCI) were independent risk factors for mortality. Patient-reported mental and emotional problems were significantly increased in patients with sarcopenia.

Operative treatment of fragility fractures of the pelvis: a critical analysis of 140 patients

Background

Fragility fractures of the pelvis (FFP) are a clinical entity with an increasing frequency. Indications for and type of surgical treatment are still a matter of debate.

Purpose

This retrospective study presents and critically analyses the results of operative treatment of 140 patients with FFP.

Setting

Level-I trauma center.

Materials and methods

Demographic data, comorbidities, FFP-classification, type of surgical stabilization (percutaneous (P-group) versus open procedure (O-group)), length of hospital stay (LoS), general in-hospital complications, surgery-related complications, living environment before admission, mobility and destination at discharge were retracted from the medical and radiographic records. Patients were asked participating in a survey by telephone call about their quality of life. SF-8 Physical Component Score (PCS) and SF-8 Mental Component Score (MCS) were calculated as well as the Parker Mobility Score (PMS) and the Numeric Rating Scale (NRS).

Results

Mean age was 77.4 years and 89.3% of patients were female. 92.1% presented with one comorbidity, 49.3% with two or more comorbidities. Median length of hospital stay was 18 days, postoperative length of hospital stay was 12 days. 99 patients (70.7%) received a percutaneous operative procedure, 41 (29.3%) an open. Patients of the O-group had a significantly longer LoS than patients of the P-group (p = 0.009). There was no in-hospital mortality. There were significantly more surgery-related complications in the O-group (43.9%) than in the P-group (19.2%) (p = 0.006). Patients of the O-group needed more often surgical revisions (29.3%) than patients of the P-group (13.1%) (p = 0.02). Whereas 85.4% of all patients lived at home before admission, only 28.6% returned home at discharge (p < 0.001). The loss of mobility at discharge was not influenced by the FFP-classes (p = 0.47) or type of treatment (p = 0.13). One-year mortality was 9.7%. Mortality was not influenced by the FFP-classes (p = 0.428) or type of treatment (p = 0.831). Median follow-up was 40 months. SF-8 PCS and SF-8 MCS were moderate (32.43 resp. 54.42). PMS was 5 and NRS 4. Follow-up scores were not influenced by FFP-classes or type of treatment.

Conclusion

Patients with FFP, who were treated operatively, suffered from a high rate of non-lethal general, in-hospital complications. Open surgical procedures induced more surgery-related complications and surgical revisions. Mental and physical follow-up scores are low to moderate. Condition at follow-up is not influenced by FFP-classes or type of treatment. Indications for operative treatment of FFP must be critically examined. Surgical fixation should obtain adequate stability, yet be as less invasive as possible. The advantages and limitations of different surgical techniques have to be critically evaluated in prospective studies.

Does operative treatment of geriatric pelvic ring injuries lead to a high risk of one-year mortality?

INTRODUCTION

Non-operative management of pelvic ring injuries in the elderly is associated with a high risk of one-year mortality. The majority of these injuries are the result of a low-energy mechanism, however, due to the multiple medical comorbidities in this patient population the injuries are associated with a high degree of morbidity. The purpose of this study was to determine the one-year mortality risk after operative treatment of pelvic ring injuries in a geriatric patient population and the effect of patient and injury characteristics on the risk of mortality.

PATIENTS AND METHODS

We performed a retrospective review of patients over the age of 70 who underwent operative fixation of a pelvic ring injury at two Level 1 trauma centers between January 2016 and June 2019. Medical records were reviewed for patient and injury characteristics including: Charlson Comorbidity Index (CCI), American Society of Anesthesiologists (ASA) physical status score or Injury Severity Score (ISS), hospital and intensive care unit (ICU) length of stay (LOS). The primary outcome of interest was the one-year mortality risk following operative treatment. Secondary outcomes included the effect of patient and injury characteristics on the one-year mortality risk and the hospital LOS.

RESULTS

Ninety patients were included with an average age of 79.8  ±  6.5 years. The overall mortality was 8.9% (n = 8) and was significantly associated with the CCI. There was no significant effect related to the ASA physical status score or ISS. The average hospital LOS was 9.2 ± 7.3 days and was associated with the CCI, ASA physical status score, and ISS.

DISCUSSION

Non-operative management of pelvic ring injuries in geriatric patients is associated with a high risk of one-year mortality. Our findings suggest operative treatment of these fractures is associated with an acceptable risk of one-year mortality that falls below the commonly reported range for non-operatively managed injuries. Furthermore, the risk of mortality was significantly associated with the patient's pre-injury state as determined by the CCI.

Pubic root fractures are commonly misread as anterior column fractures by radiologists: Single-institution study from a level 1 trauma center

BACKGROUND

We sought to determine how frequently pubic root fracture is incorrectly identified as anterior column fracture by radiologists and describe differences in characteristics and outcomes between injury patterns.

METHODS

We identified 155 patients who sustained pelvic or acetabular fractures at a single, level 1 trauma academic institution. Pelvis computed tomography (CT) scans were evaluated to determine whether patients sustained an anterior column fracture or pubic root fracture. Demographic and clinical factors such as mortality, ambulatory status, type of treatment (nonoperative/surgery), and mechanism of energy were assessed.

RESULTS

There were a total of 83 patients in the anterior column group and 72 patients in the pubic root cohort. Eighty-five percent of pubic root fractures were read as anterior column fractures by radiologists. A total of 77.8% of pubic root fractures had posterior ring involvement. Patients with true anterior column acetabular fracture were more likely to need surgery (63.86% vs 41.70%, P = 0.01) and be discharged to skilled nursing or inpatient rehabilitation (59.04% vs 40.27%, P = 0.02) compared to patients with pubic root fracture.

CONCLUSION

Pubic root fractures are frequently misread as anterior column fractures in radiology reports. Correctly diagnosing pubic root fractures and differentiating them from anterior column acetabular fractures can have significant impact on patients.

LEVEL OF EVIDENCE

III, Therapeutic.

The FFP-classification: From eminence to evidence

Fragility fractures of the pelvis (FFP) are a clinical entity with a rapidly growing incidence among elderly women. The characteristics of these fractures are different from those appearing after high-energy trauma. In 2013, the comprehensive FFP-classification provided a new framework for analysis of these fractures. It is based on the estimation of loss of stability in the pelvic ring. It is connected with recommendations for surgical treatment, justified by the fact that higher instabilities will need surgical stabilization. Since ist appearance, we can observe an increasing clinical-scientific interest in FFP. Multiple publications use the FFP-classification studying the characteristics of fractures, choice of treatment and outcome. Other studies focus on minimal-invasive techniques for stabilization. The actual knowledge describes higher mortality rates as the reference population, lower mortality rates after operative treatment but for the price of surgery-related complications. Mobility, independency and quality of life are worse than before the fracture, independent of the FFP-classification and the type of treatment. The classification triggered a rapid increase of expertise. This publication gives a detailed overview on the evolution from eminence to evidence.

Operative treatment of fragility fractures of the pelvis is connected with lower mortality. A single institution experience

Background

Fragility fractures of the pelvis (FFP) represent an increasing clinical entity. Until today, there are no guidelines for treatment of FFP. In our center, recommendation for operative treatment was given to all patients, who suffered an FFP type III and IV and to patients with an FFP type IIwith unsuccessful non-operative treatment. We performed a retrospective observational study and investigated differences between fracture classes and management alternatives. We hypothetized that operative treatment may reduce mortality.

Materials and methods

The medical charts and radiographs of 362 patients were analysed. Patient demographics, FFP-classification, length of hospital stay (LoS), type of treatment, general and surgery-related complications, mortality, Short Form-8 physical component score (SF-8 PCS) and mental component score (SF-8 MCS), Parker Mobility Score (PMS) and Numeric Rating Scale (NRS) were documented.

Results

238 patients had FFP type II and 124 FFP type III and IV. 52 patients with FFP type II (21.8%) and 86 patients with FFP type III and IV (69.4%) were treated operatively (p<0.001). Overall mortality did not differ between the fracture classes (p = 0.127) but was significantly lower in the operative group (p<0.001). Median LoS was significantly higher in FFP type III and IV (p<0.001) and in operated patients (p<0.001). There were more in-hospital complications in patients with FFP type III and IV (p = 0.001) and in the operative group (p = 0.006). More patients of the non-operative group were mobile (p<0.001) and independent (p<0.001) at discharge. Half of the patients could not return in their living environment.203 of the 235 surviving patients (86%) answered the questionnaires after a mean follow-up time of 38 months. SF-8 PCS, SF-8 MCS and PMS did not differ between the fracture classes and treatment groups. Pain perception was higher in the operated group (p = 0.013).

Conclusion

In our study, we observed that operative treatment of FFP provides low mortality rates, although LoS and in-hospital complications were higher in the operative group. At discharge, the non-operative group was more mobile and independent. At follow up, quality of life and mobility were comparable between the groups. Further prospective studies are needed to clarify the impact of operative treatment of FFP on mortality and functional outcome.

Epidemiology and mortality of pelvic and femur fractures-a nationwide register study of 417,840 fractures in Sweden across 16 years: diverging trends for potentially lethal fractures

Background and purpose - Fractures of the pelvis and femur are serious and potentially lethal injuries affecting primarily older, but also younger individuals. Long-term trends on incidence rates and mortality might diverge for these fractures, and few studies compare trends within a complete adult population. We investigated and compared incidence and mortality rates of pelvic, hip, femur shaft, and distal femur fractures in the Swedish adult population.Patients and methods - We analyzed data on all adult patients ≥ 18 years in Sweden with a pelvic, hip, femur shaft, or distal femur fracture, through the Swedish National Patient Register. The studied variables were fracture type, age, sex, and 1-year mortality.Results - While incidence rates for hip fracture decreased by 18% (from 280 to 229 per 105 person-years) from 2001 to 2016, incidence rates for pelvic fracture increased by 25% (from 64 to 80 per 105 person-years). Incidence rates for femur shaft and distal femur fracture remained stable at rates of 15 and 13 per 105 person-years respectively. 1-year mortality after hip fracture was 25%, i.e., higher than for pelvic, femur shaft, and distal femur fracture where mortality rates were 20-21%. Females had an almost 30% lower risk of death within 1 year after hip fracture compared with males.Interpretation - Trends on fracture incidence for pelvic and femur fractures diverged considerably in Sweden between 2001 and 2016. While incidence rates for femur fractures (hip, femur shaft, and distal femur) decreased or remained constant during the studied years, pelvic fracture incidence increased. Mortality rates were different between the fractures, with the highest mortality among patients with hip fracture.

Pelvic insufficiency fractures following carbon-ion radiotherapy for uterine carcinomas

BACKGROUND AND PURPOSE

There is growing evidence on the role of carbon-ion radiotherapy (C-ion RT) for gynaecological tumours. Pelvic insufficiency fracture (PIF) decreases the quality of life after photon beam radiotherapy (RT). However, there is little information on PIF after C-ion RT. This study retrospectively assessed incidence of PIF after C-ion RT for uterine carcinomas (UCs) and the associations of clinical and dosimetric parameters with PIF incidence.

MATERIAL AND METHODS

We performed a pooled analysis of 102 patients with UCs who underwent definitive C-ion RT alone and were followed up for >6 months without any additional RT in the pelvic region. PIF occurrence was surveyed using magnetic resonance imaging and/or computed tomography. Associations of clinical and dosimetric parameters with PIF incidence were analysed.

RESULTS

The 2- and 5-year actuarial incidences of ≥grade 1 PIF in all pelvic regions were 22.3% and 42.4%, respectively. The most frequent site of involvement was the sacrum. Log-rank tests showed that higher volumes receiving >10 Gy (relative biological effectiveness) (V10), V20, V30, and V40, body mass index (BMI) under 18.5, and current smoking were associated with increased incidence of ≥grade 1 PIF in the sacrum.

CONCLUSIONS

We clarified the actuarial incidence of PIF after C-ion RT for UCs. Higher V10, V20, V30, V40, D_50%, D_mean, current smoking, BMI <18.5, and using the anterior-posterior direction in whole pelvic irradiation were associated with higher incidences of PIF in the sacrum. The present results may lead to further improvement of C-ion RT for UCs.

[Radiological diagnosis of pelvic ring fractures]

EPIDEMIOLOGY

Traumatic fractures of the pelvic ring are relatively rare, but are associated with increased risk of mortality. Depending on injury mechanism and main vector of energy impact, a distinction is made between anteroposterior compression, lateral compression, and vertical shear (Young and Burgess classification), while the stability-related classification according to Tile distinguishes between type A (stable), type B (rotationally unstable) and type C (completely unstable). A comprehensive modern classification is given by the AO/OTA.

RADIOLOGICAL FRACTURE DIAGNOSIS

Plain pelvis x‑rays lack sufficient sensitivity but are still used to detect highly unstable pelvic fractures. CT has superior sensitivity and specificity. In addition to fracture classification, CT allows reliable assessment of associated vascular and bladder/urethral injuries and large soft tissue hemorrhage. MRI is unparalleled in showing bone marrow edema, cauda and plexus complications, and peripelvic soft tissue damage. MRI may also prove to be a valuable diagnostic tool for pelvic ring injuries in children, adolescents and young women, provided they are hemodynamically stable. Angiography, ultrasonography and bone scintigraphy are additional important diagnostic and therapeutic options.

PRACTICAL RECOMMENDATIONS

Knowledge of basic pelvic trauma mechanisms is important to understand the potential severity of traumatic pelvic fractures and to classify them correctly in terms of stability. Being familiar with typical concomitant injuries in pelvic ring fractures allows reliable diagnosis and their communication with the clinician. CT remains the "diagnostic workhorse". In fragile pelvic fractures, the often prolonged course with fracture progression must be taken into account, which is why MRI is of particular importance herein.

Isolated Pubic Ramus Fractures Are Serious Adverse Events for Elderly Persons: An Observational Study on 138 Patients with Fragility Fractures of the Pelvis Type I (FFP Type I)

Background: Fractures of the pubic ramus without involvement of the posterior pelvic ring represent a minority of fragility fractures of the pelvis (FFP). The natural history of patients suffering this FFP Type I has not been described so far. Material and methods: All patients, who were admitted with isolated pubic ramus fractures between 2007 and mid-2018, have been reviewed. Epidemiologic data, comorbidities, in-hospital complications, and one-year mortality were recorded. Of all surviving patients, living condition before the fracture and at follow-up was noted. Mobility was scored with the Parker Mobility Score, quality of life with the European Quality of Life 5 Dimensions 3 Level (EQ-5D-3L), subjective sensation of pain with the Numeric Rating Scale (NRS). Results: A consecutive series of 138 patients was included in the study. There were 117 women (84.8%) and 21 men (15.2%). Mean age was 80.6 years (SD 8.6 years). 89.1% of patients presented with comorbidities, 81.2% of them had cardiovascular diseases. Five patients (4%) died during hospital-stay. Median in-hospital stay was eight days (2–45 days). There were in-hospital complications in 16.5%, urinary tract infections, and pneumonia being the most frequent. One-year mortality was 16.7%. Reference values for the normal population of the same age are 5.9% for men and 4.0% for women. One-year mortality rate was 22.2% in the patient group of 80 years or above and 8.8% in the patient group below the age of 80. The rate of surviving patients living at home with or without assistance dropped from 80.5% to 65.3%. The median EQ-5D-Index Value was 0.62 (0.04–1; IQR 0.5–0.78). Reference value for the normal population is 0.78. Average PMS was 4 and NRS 3. Within a two-year period, additional fragility fractures occurred in 21.2% and antiresorptive medication was taken by only 45.2% of patients. Conclusion. Pubic ramus fractures without involvement of the posterior pelvis (FFP Type I) are serious adverse events for elderly persons. During follow-up, there is an excess mortality, a loss of independence, a restricted mobility, and a decreased quality of life. Pubic ramus fractures are indicators for the need to optimize the patient’s general condition.