Decision-making, therapy, and outcome in lateral compression fractures of the pelvis - analysis of a single center treatment

Posterior-only fixation in pelvic fractures: Is it sufficient in lateral compression injuries?

PURPOSE

Lateral compression (LC) injuries account for more than two-thirds of all pelvic fractures. The goal of surgical treatment is to provide adequate stability and early mobilization. The consensus on posterior fixation of such injuries is strong in the literature; however, the necessity of anterior ring fixation is not clear. Therefore, this study was formulated to determine the practicability of posterior-only fixation in LC injuries.

METHODS

Between March 2015 and May 2020, all patients with LC type pelvic ring fractures who were admitted and operated upon in a single level 1 trauma center were included in this cross-sectional observational study. Demographic data, co-morbidities, treatment, types of surgical fixation, concomitant injuries and surgeries, surgical complications, length of hospital stay, injury to weight bearing duration, and follow-up period were documented. Functional outcome and quality of life were assessed using Majeed score and SF-36 questionnaire. Non-normally distributed data were presented as median (Q1, Q3) and normally distributed data were presented as mean ± standard deviation (SD). Spearman's rank correlation coefficient was used for correlation analysis.

RESULTS

A total of 25 patients were included, with a mean age of 29.8 years. All patients were managed operatively with posterior-only fixation. The median Majeed score was 90 (76, 95). The median physical component summary score was 69.37 (38.75, 85.62). The median mental component summary score was 63.95 (39.25, 87.87). There was no significant difference compared to population norms of both physical component summary and mental component summary. Injury to weight bearing time correlated significantly (p = 0.002) with Majeed score as well as SF-36 score (p = 0.044). No other variable had a significant association with outcomes.

CONCLUSION

Posterior-only fixation is sufficient for fixing LC injuries with up to 80% of cases having good to excellent functional outcomes. However, comparative studies with larger sample sizes are needed for further validation.

Epidemiology and patient-reported measurement outcome of pelvic fractures in children and adolescents - A population-based cohort study from the Swedish fracture register

BACKGROUND AND PURPOSE

Pediatric pelvic fractures are uncommon, representing 0.2-3% of total pediatric fractures. The long-term patient-reported outcome in the pediatric population has not been evaluated yet. The purpose of the study was to describe the epidemiology of pelvic and acetabular fractures in pediatric patients including long-term patient-reported outcomes.

PATIENTS AND METHODS

The Swedish Fracture Register (SFR) was used to identify all patients aged 6-17 years at injury with a pelvic fracture between 2015 and 2021. All patients were invited to answer Patient-Reported measurement instruments in 2021.

RESULTS

The study cohort consisted of 223 patients with a median age at fracture of 15 years and with 62 % boys. 201 sustained a pelvic and 22 acetabular fractures. Falls were the leading cause of fracture, followed by transport accidents. Most fractures (both pelvis and acetabulum) were type A (73 %), and 21 fractures (9 %) could not be classified according to AO. 85 % of fractures were treated non-surgically. All Type C fractures were treated surgically. Seven PROMIS® profile domains were completed by 31 % of the sample at a mean follow-up time of 3.5 years after pelvic/acetabular fracture. Most patients had "no concern" or "mild concern" but those who had surgery had an inferior t-score in most domains.

CONCLUSION

Most fractures occurred in older individuals, with falls during sports activities being the most common cause. This raises important questions about prevention strategies. The PROMIS-Pain-Interference scale indicated that the younger the age at fracture, the more pain was reported at follow-up.

Operative versus conservative treatment in pelvic ring fractures with sacral involvement

BACKGROUND

To evaluate the performance in activities of daily living (ADL), level of pain, mortality and rate of complications in patients with a pelvic ring fracture with sacral involvement who were treated conservatively compared to a surgically treated patient collective using percutaneous iliosacral screw fixation.

HYPOTHESIS

Conservative treatment does not result in inferior clinical outcome compared to operative treatment.

PATIENTS AND METHODS

A retrospective study of 112 conservatively (n=46) or operatively (n=66) treated patients with an isolated posterior or a combined posterior and anterior pelvic ring fracture was performed. The analysis included: age, sex, mechanism of injury, fracture type according to AO/OTA classification, energy of trauma sustained (no-, low-, high-energy trauma), type of treatment (operative or conservative), complications as well as duration of in-hospital stay. To assess clinical and activity outcome, the visual analog scale for pain (VAS), Barthel Scale, American Society of Anaesthesiologists (ASA) scores as well as mortality were assessed. The mean follow-up was 29.3±14.6 months. Furthermore, a geriatric subgroup (n=68, age≥60, low-energy trauma only) was analyzed.

RESULTS

The majority of the patients were female (79%) and suffered from low-energy trauma (n=64, 58%). There were no significant differences in the operative and the conservative groups and subgroups concerning VAS, Barthel scores and ASA scores. The survival analyses showed a significantly lower survival rate in the conservative group (41.8±3.6 months) compared to the operative group (55.9±2 months, p=0.002). Similar findings were encountered in the geriatric subgroup analysis.

CONCLUSION

This study demonstrates equivalent clinical outcome in conservatively and surgically treated patients using a percutaneous iliosacral screw fixation at a mid-term follow-up. However, operatively treated patients showed decreased mortality. This needs to be carefully considered in clinical decision-making but must be further explored using a prospective randomized study approach.

LEVEL OF EVIDENCE

III.

Exploring the collaborative care of patients with pelvic fractures in Tshwane, South Africa

BACKGROUND

 Pelvic fractures are complex injuries that lead to long-term disabilities and poor health-related quality of life (HRQoL). Even though pelvic fractures are known to be challenging to manage, there is limited information on guidelines and protocols to ensure that patients receive comprehensive and collaborative healthcare.

METHODS

 A qualitative descriptive phenomenological approach was utilised to explore current practices and innovations of healthcare professionals (HPs) in Tshwane academic hospitals in the collaborative management and rehabilitation of patients with pelvic fractures, using semi-structured interviews. Thematic analysis was used to analyse data.

RESULTS

 Six overarching themes were identified from the interviews with HPs: The biopsychosocial lens of the patient, limitations in approaches to care, contextual impediments to care, the team challenge; the biopsychosocial aspects of care and forging forward to improve care.

CONCLUSION

 A multidisciplinary approach is encouraged for the comprehensive management of pelvic fractures. However, a poor understanding of roles and poor referral structures challenge this approach. Further barriers to caring include staff shortages and limited resources. Healthcare professionals recommended interprofessional education and collaborative practice, student training and using standardised outcome measurement tools to improve care for patients with pelvic fractures.Contribution: This study lays a foundation to initiate conversations about the development of an interprofessional model of care for patients with pelvic fractures. Findings might inform health policies on the management of pelvic fractures. Healthcare professionals might apply strategies that enhance the quality of healthcare provided. Patients with pelvic fractures might receive quality interprofessional healthcare that promotes quality of life, post pelvic fractures.

Pararectus approach to the AO B2.2 pelvic fracture: early functional and radiological outcomes

PURPOSE

The pararectus approach is used to treat acetabular fractures; however, it remains unclear whether it can be used to treat pelvic fractures. This study aimed to examine the outcomes of patients with a pelvic ring fracture treated with this approach.

METHODS

Seven patients with AO B2.2 pelvic fractures treated with the pararectus approach were included. Patients' pain was assessed pre- and postoperatively with a numerical rating scale. Radiological evaluations included inlet and outlet ratios and pelvic symmetry. Functional outcomes, including Merle d'Aubigné and Majeed scores, were also recorded for 12 months.

RESULTS

One patient experienced obturator nerve neuropraxia. Pain scores ranged from 2.3-8.0 to 2.0-3.1 points before and after surgery, respectively. Radiological findings revealed satisfactory outcomes. The maximal gap of the affected ilium reduced from 8.6-20.2 to 0-3.4 mm, from 6.8-17.9 to 0-4.4 mm, and from 3.7-20.3 to 0-3.2 mm in the axial, sagittal, and coronal views, respectively. Based on multiple evaluations, functional outcomes were improved for all patients.

CONCLUSION

The pararectus approach can be used safely and satisfactorily to treat AO B 2.2 pelvic fractures.

Locked pubis symphysis in a skeletally immature patient, a case report

Background

Locked symphysis pubis is an exceedingly rare pelvic injury especially in the paediatric population. This study is the first to describe this fracture in a skeletally immature patient.

Case report

We report the case of a fifteen year old boy who presented to the Emergency Department (ED) after being involved in a farming injury with a left lateral compression pelvic trauma. He sustained Locked Symphysis Pubis (LSP) and internal pelvic bleeding from the right Internal Iliac Artery (IIA). He was treated successfully by selective embolization of the ILA followed by closed reduction of the LSP and percutaneous fixation of the SI joint.

Conclusion

Locked symphysis pubis in the paediatric population is an exceedingly rare injury among lateral compression type pelvic fractures. Careful assessment and preoperative management planning are encouraged. Open packing of the pelvis in case of internal bleeding should be avoided in paediatric patients, only selective embolization is advocated. Closed reduction of the LSP by using the external fixator as a lever arm for reduction followed by percutaneous fixation of the SI joint. Moreover, changing the patient position to prone position followed by posterior lumbar spine stabilisation is our preferred method of treatment.

The Lateral Stress Radiograph Identifies Occult Instability of Lateral Compression Pelvic Ring Injuries Without Sedation

OBJECTIVES

To determine if pelvic ring displacement on the lateral stress radiograph (LSR) correlated with displacement on examination under anesthesia (EUA).

DESIGN

Retrospective cohort study.

SETTING

Urban Level I trauma center.

PATIENTS/PARTICIPANTS

Twenty consecutive patients with unilateral minimally displaced LC1 injuries with complete sacral fractures.

INTERVENTION

An anteroposterior pelvis radiograph taken in the lateral decubitus position (LSR) was performed on awake patients before EUA in the operating room.

MAIN OUTCOME MEASUREMENTS

Correlation between ≥1 cm of pelvic ring displacement on the LSR and EUA.

RESULTS

The LSR demonstrated ≥1 cm of displacement in 11 of the 20 patients (55%). All of these patients had ≥1 cm of displacement on EUA and underwent surgical fixation. The remaining 9 patients with <1 cm of displacement on the LSR also had <1 cm of displacement on EUA and were managed nonoperatively.

CONCLUSIONS

The LSR reliably identified occult instability in LC1 pelvic ring injuries and demonstrated 100% correlation with EUA. In contrast to EUA, the LSR does not require sedation and normalizes the amount of force applied to determine instability.

LEVEL OF EVIDENCE

Diagnostic Level II. See Instructions for Authors for a complete description of levels of evidence.

A Survey to Assess Agreement Between Pelvic Surgeons on the Outcome of Examination Under Anesthesia for Lateral Compression Pelvic Fractures

OBJECTIVES

To assess agreement among pelvic surgeons regarding the interpretation of examination under anesthesia (EUA), the methodology by which EUA should be performed, and the definition of a positive examination.

DESIGN

Survey.

PATIENTS/PARTICIPANTS

Ten patients who presented to our Level 1 trauma center with a pelvic ring injury were selected as clinical vignettes. Vignettes were distributed to 15 experienced pelvic surgeons.

INTERVENTION

Examination under anesthesia.

MAIN OUTCOME MEASUREMENTS

Agreement regarding pelvic fracture stability (defined as >80% similar responses), need for surgical fixation, definition of an unstable EUA, and method of performing EUA.

RESULTS

There was agreement that a pelvic fracture was stable or unstable in 8 (80%) of 10 cases. There was agreement that fixation was required or not required in 6 (60.0%) of 10 cases. Seven (46.7%) surgeons endorsed performing a full 15-part EUA, whereas the other 8 (53.3%) used an abbreviated or alternative method. Eight (53.3%) surgeons provided a definition of what constitutes a positive EUA, whereas the remaining 7 did not endorse adhering to a strict definition.

CONCLUSIONS

Pelvic surgeons generally agree on what constitutes a positive or negative EUA but not necessarily the implications of a positive or negative examination. There is no clear consensus among surgeons regarding the method of performing EUA nor regarding the definition of a positive EUA.

LEVEL OF EVIDENCE

Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Feasibility of anterior pelvic ring fixation alone for treating lateral compression type 1 pelvic fractures with nondisplaced complete sacral fractures: a retrospective study

Purpose

The aim of this study was to evaluate the feasibility of anterior pelvic ring fixation alone for treating lateral compression type 1 (LC-1) fractures with nondisplaced complete sacral fractures.

Methods

Patients with LC-1 type pelvic fractures with nondisplaced complete sacral fractures in the Xi’an Honghui Hospital were screened. Those who underwent surgical treatment for the anterior pelvic ring fractures and conservative treatment for the sacral factures were included in the analysis. The Majeed and Short Form-12 (SF-12) functional scores were used to evaluate these patients.

Results

Of the 123 patients enrolled, 108 (88%) responded to our enquiries regarding the outcome. The mean follow-up period was 18.37 months for the 108 patients who responded. The mean SF-12 functional score was 48.22 ± 9.68. The mean Majeed score was 83.47 ± 9.23, including 52 with excellent, 47 with good, seven with fair, two with poor outcomes. The SF-12 functional and Majeed scores were significantly higher in those aged <45 years or without lower limb injury than in those aged ≥45 years or with lower limb injury (P < 0.05).

Conclusion

Acceptable functional outcomes can be obtained for LC-1 pelvic fractures with nondisplaced complete sacral fractures by using anterior pelvic ring fixation alone.