Pelvic binder and pelvic haemorrhage

01OverviewDefinition, clinical context and the essential points that orientate the chapter.

Pelvic fracture is both skeletal injury and a potential haemorrhage syndrome. Mechanism and physiology matter more than the visible deformity. A disrupted ring can bleed from venous plexuses, cancellous surfaces and arteries into a large retroperitoneal space. The first assessment therefore combines CABCDE, pelvic and perineal inspection, distal neurovascular examination and immediate control. Do not repeatedly spring or roll the pelvis to prove instability, because that adds pain and may disrupt tamponade.

A binder reduces pelvic volume and movement. Slide it beneath the patient with minimal movement and centre it at the level of the greater trochanters; high placement over the iliac crests is ineffective. Bring the legs toward neutral when safe and follow the device tension mechanism. Confirm position on the trauma radiograph or CT scout and reposition promptly if necessary. Record the exact application time because pressure injury risk rises with prolonged use.

Binding does not make the patient haemostatic. Activate the major-haemorrhage protocol when physiology indicates, use warmed components and early tranexamic acid, monitor temperature, calcium and coagulation, and search concurrently for chest, abdominal and long-bone sources. If shock continues, assume the binder may be correctly treating only part of the problem. The response to blood and mechanical stabilisation guides whether CT is safe or direct intervention is required.

Contrast CT in a stable or responding patient maps anterior and posterior ring damage, sacrum, acetabulum, abdominal organs, urinary tract and arterial extravasation. CT angiographic findings can direct embolisation. A negative eFAST does not assess the retroperitoneum. In a non-responder, surgical pelvic packing and temporary external or internal stabilisation may control venous and bony loss; arterial bleeding may require angioembolisation, sometimes before or after packing in a hybrid sequence.

Associated injury changes the pathway. Inspect for open wounds in groin, perineum, buttock, rectum or vagina and involve colorectal, gynaecology, urology and plastics as indicated. Blood at the urethral meatus, perineal bruising, inability to void, pelvic fracture pattern or a high-riding prostate description raises concern for urethral disruption. Avoid repeated blind catheterisation; obtain early urological advice and appropriate retrograde urethrography or suprapubic drainage planning.

Binder removal is an active clinical decision. A normal-looking ring on CT acquired with a binder may conceal instability, so specialist review may require controlled loosening or additional assessment after resuscitation. Removal should occur where rebleeding can be treated and alternative stabilisation is ready. Inspect and protect skin throughout, especially in older, unconscious or neuropathic patients. If transfer is required, hand over the application time and removal plan explicitly.

Longer-term care includes fixation strategy, pain control, bowel and bladder management, neurological reassessment, pressure care, nutrition, thromboprophylaxis and rehabilitation. Fragility fractures may need CT or MRI when plain films are unrevealing, alongside osteoporosis and falls assessment. Recovery is affected by associated abdominal, urogenital and nerve injuries, so functional follow-up should address continence, sexual health, mobility, work and psychological impact rather than radiographic union alone.

Key points

Suspect pelvic bleeding after high-energy blunt trauma with shock, pelvic pain, perineal signs or an unreliable examination; avoid repeated compression or distraction testing.
Place a purpose-made binder around the greater trochanters, not the iliac crests or abdomen, pull to the device specification and confirm position clinically and radiographically.
A binder is temporary haemorrhage control; continue warmed blood, TXA within 3 hours, calcium and coagulation management and definitive pelvic source-control planning.
For a suitable responder, contrast CT defines ring injury and active arterial bleeding; a persistent non-responder needs direct packing, fixation, embolisation or a hybrid route without avoidable scan delay.
Do not remove the binder merely for imaging or examination. Removal should occur in a controlled setting with senior pelvic expertise and an agreed stabilisation plan.
Inspect perineum and external genitalia once, with dignity and only clinically indicated internal examination; look for wounds, blood and degloving rather than repeatedly manipulating the ring.
Blood at the meatus or other urethral signs requires early urological discussion and a urethral-imaging or urinary-diversion plan before repeated catheter attempts.
Document binder brand, position, time, skin checks and pre- and post-application distal neurology and perfusion; continue VTE and pressure-area planning after haemostasis.

02AetiologyUnderlying causes, associations and risk factors, with why each one matters.

High-energy ring disruption

Road collision, crush and fall from height can disrupt anterior and posterior pelvic structures, increasing pelvic volume and tearing veins, arteries and cancellous bone.

Fragility pelvic fracture

Older adults may sustain pubic rami, sacral or acetabular injury after a simple fall, with pain and immobility despite subtle plain radiographs.

Penetrating or open injury

Perineal, rectal, vaginal or skin wounds communicate with the fracture and create major haemorrhage, contamination and infection risk requiring multidisciplinary care.

03PathophysiologyThe causal sequence from the underlying abnormality to symptoms and harm.

1
Venous and bony bleeding
Low-pressure plexus and cancellous surfaces cause much pelvic blood loss and may respond to volume reduction, packing and mechanical stabilisation.
2
Arterial haemorrhage
Branches of the internal iliac system can continue bleeding despite binder and packing, often requiring targeted angioembolisation or operative vascular control.
3
Loss of tamponade
Ring opening and repeated examination enlarge the retroperitoneal space and disturb clot, which is why forceful pelvic springing is avoided.
4
Associated organ injury
Urethra, bladder, rectum, vagina, lumbosacral nerves and abdominal viscera lie close to the ring and can be injured by displacement or penetrating fragments.

04Clinical features and red flagsSymptoms, examination findings, patterns of presentation and time-critical warnings.

Pelvic haemorrhage pattern

Shock after high-energy torso trauma with pelvic pain, deformity, sacral or perineal signs justifies immediate binder and haemorrhage-protocol action.

Incorrect binder position

A device seen across iliac crests or abdomen rather than femoral greater trochanters will not reduce the ring effectively and must be repositioned.

Arterial continuation

Ongoing instability or arterial contrast extravasation despite binding suggests a source likely to need embolisation or operative vascular control.

Open pelvic fracture

Skin, rectal, vaginal or perineal communication with the fracture creates contamination and bleeding that requires urgent multidisciplinary debridement and diversion decisions.

Urethral injury

Meatal blood, haematuria, perineal bruising, inability to void or catheter resistance should stop repeated instrumentation and prompt urological evaluation.

Fragility pattern

An older person unable to mobilise with groin, pubic or sacral pain after a fall may have occult pelvic insufficiency injury despite non-diagnostic plain films.

Red flags requiring action

High-energy mechanism with shock, pelvic or sacral pain, perineal bruising, limb-length change or mechanical instability should be treated as pelvic haemorrhage until assessed and controlled.
Blood at the urethral meatus, inability to void, gross haematuria, scrotal or labial swelling, vaginal or rectal bleeding suggests associated urogenital or open pelvic injury.
Persistent instability despite a correctly positioned binder and blood indicates continued pelvic arterial, venous or non-pelvic bleeding and requires immediate source-control escalation.

05InvestigationsWhat to request, why it matters and how to interpret it.

Investigation order

Read from the initial assessment onwards. Tests may run in parallel in urgent care; first-line, preferred, confirmatory, definitive and gold-standard labels appear only when the chapter explicitly states them.

01
Immediate pelvic radiographFirst step
Why
Identify major ring disruption during unstable resuscitation and check binder level.
Interpretation and limitations
Interpret asymmetry, symphyseal or sacroiliac widening and vertical displacement; a normal film does not exclude posterior or fragility fracture.
02
Preferred contrast CT in a suitable responderPreferred
Why
Define fracture pattern, active bleeding and associated organ injury.
Interpretation and limitations
Arterial extravasation or vascular abnormality informs embolisation, while ring and visceral findings determine pelvic, abdominal and urological surgery.
03
Blood gas and haemorrhage panel
Why
Track shock and haemostatic physiology.
Interpretation and limitations
Trend lactate or base deficit, haemoglobin, fibrinogen, platelets, coagulation, temperature and ionised calcium; early haemoglobin can remain normal.
04
Retrograde urethrography
Why
Assess suspected male urethral disruption before further instrumentation.
Interpretation and limitations
Extravasation and incomplete urethral filling determine catheter or diversion planning with urology; do not repeat traumatic blind attempts.
05
CT cystography
Why
Evaluate suspected bladder injury with appropriate bladder distension.
Interpretation and limitations
Intraperitoneal and extraperitoneal contrast leakage have different management implications; routine portal-phase CT alone may miss bladder rupture.
06
MRI or focused CT for fragility pain
Why
Find occult sacral and pelvic insufficiency fracture.
Interpretation and limitations
Use when an older person cannot mobilise and radiographs are negative or inadequate, because posterior-ring injury often drives persistent pain.

06Differential diagnosisRealistic alternatives and the features that help distinguish them.

Hip fracture or dislocation

Shortening, rotation and groin pain may arise from proximal femoral or acetabular injury and needs joint-focused imaging and neurovascular assessment.

Intra-abdominal haemorrhage

Solid-organ, mesenteric or vascular injury commonly coexists and remains a source when pelvic measures do not correct shock.

Spinal or sacral injury

Back pain, saddle sensory loss, weakness or bladder dysfunction can reflect sacral fracture, cauda equina or lumbosacral plexus damage.

Soft-tissue contusion

Bruising and pain without ring disruption is less dangerous, but cannot be assumed from mechanism or one negative low-quality radiograph.

07ManagementImmediate care, first-line treatment, alternatives and escalation.

01ImmediateBind and resuscitateFirst stepPelvic injury is suspected with haemodynamic instability or a high-risk mechanism and unreliable examination.

1Apply the binder over the greater trochanters with minimal movement, avoid springing and document distal neurovascular status and application time.
2Activate major-haemorrhage support, use warmed blood, give timely tranexamic acid and correct temperature, calcium and clotting deficits.
3Inspect for open, perineal and urogenital injury and involve pelvic trauma, general surgery, urology and interventional radiology as findings require.
4Reassess response immediately and decide whether CT is safe or direct packing, fixation or embolisation is needed.

02Source controlChoose pelvic interventionShock persists or imaging confirms ongoing pelvic bleeding.

1Use preperitoneal packing and pelvic stabilisation for rapid control of predominant venous and bony bleeding according to the local major-trauma pathway.
2Use angioembolisation for arterial bleeding in a suitable patient, with rapid access and surgical rescue capability when physiology is precarious.
3Combine approaches in a hybrid or staged sequence when mixed sources, abdominal injury or continued instability make one modality insufficient.
4DefinitiveTreat open contamination and visceral injury concurrently, accepting damage-control procedures when definitive reconstruction would be unsafe.

03After controlRemove binder and rehabilitate safelyHaemostasis is credible and a specialist stabilisation plan has been agreed.

1AlternativeReview CT with the binder effect in mind, arrange alternative stabilisation if needed and loosen or remove only in a monitored controlled environment.
2Inspect underlying skin, repeat pelvic pain and distal neurological assessment and watch closely for recurrent haemodynamic change.
3Complete urogenital, bowel, nerve and soft-tissue plans and communicate catheter, diversion, wound and re-operation instructions.
4Start pressure care, nutrition, mechanical then pharmacological VTE prevention and multidisciplinary mobilisation when haemostasis permits.

Key medicines and prescribing safety1 treatment · regimens, roles and cautions

Reduces bleeding mortality as an early adjunct to binder use, blood-component resuscitation and definitive pelvic haemostasis.

Tranexamic acid

For suspected major pelvic bleeding, give 1 g intravenously over 10 minutes followed by 1 g infused over 8 hours, beginning as early as possible and within 3 hours of injury.

Do not allow administration to delay packing, fixation or embolisation; routine use after 3 hours is not advised unless hyperfibrinolysis is specifically identified, and renal impairment increases exposure.

08ComplicationsImportant consequences, why they occur and why they matter clinically.

Exsanguination

Delayed binder placement, ineffective position or late packing and embolisation permits continued concealed loss and trauma-induced coagulopathy.

Skin pressure injury

Prolonged binding, folds, high placement and frail skin cause pressure necrosis, so application time and regular inspection matter.

Urogenital dysfunction

Urethral and bladder injury can cause stricture, incontinence, infection and sexual dysfunction unless recognised and managed by urology.

Thrombosis and chronic disability

Immobility, vascular injury and pelvic surgery increase venous thromboembolism, while malunion, pain and nerve injury impair gait and function.

09Monitoring and follow-upTreatment response, safety checks and longer-term review.

Trend perfusion, blood requirement, lactate or base deficit and haemostatic laboratory results through binder placement and definitive intervention.
Check binder level on imaging and inspect skin and device tension regularly, recording every repositioning and the total application duration.
Repeat distal pulses, capillary refill, motor and sensory findings after application, transfers, fixation and any new pain or swelling.
Monitor urine output and haematuria only within an agreed urethral or bladder plan; escalating catheter attempts can worsen injury.
Continue surveillance for rebleeding, wound contamination, abdominal compartment syndrome, VTE, pressure damage and later bladder, bowel or sexual dysfunction.

10Special situationsVariants, exceptions and circumstances that change the usual approach.

Trochanters are the target

A binder at the waist can look secure while failing to reduce pelvic volume or stabilise the ring.

Do not prove instability

Mechanism, pain, imaging and physiology guide treatment; repeated springing offers little information and may disturb clot.

A bound CT can conceal

Reduction within the device may make diastasis less conspicuous, so mechanism and pre-binder findings remain clinically important.

Pelvic bleeding is mixed

Venous, cancellous and arterial sources often coexist, explaining why packing, stabilisation and embolisation may all be required.

Removal can be a stress test

Loosening without monitoring or an alternative plan can reopen the ring and precipitate recurrent haemorrhage.

11Common pitfallsFrequent interpretation and management errors.

01
Placing the binder over iliac crests rather than centring it on the greater trochanters.
02
Repeatedly springing or rolling the pelvis to demonstrate mechanical instability.
03
Assuming binder placement has definitively controlled arterial and abdominal bleeding.
04
Sending a persistent non-responder to conventional CT before activating a source-control route.
05
Making repeated urethral catheter attempts despite blood at the meatus or resistance.
06
Leaving the device indefinitely without documented skin review, removal timing or alternative stabilisation.