Finger open fractures - amputationsMANAGEMENT

FOREARM, WRIST & HAND · 12 SECTIONS

⚲

582 items

☷ Legend

01Approach to the Critical Patient/attcp81

Limb threat and time critical actions

›Threat assessment

›Uncontrolled hemorrhage

›If brisk arterial bleeding, direct pressure first line

›If persistent bleeding, temporary tourniquet proximal to injury

›Ischemia

›Pale or cool digit

›Capillary refill delay

›Absent Doppler signal

›If ischemia, immediate hand surgery consult and transfer pathway

›Major tissue loss

›Complete amputation

›Near amputation with tenuous skin bridge

›Contamination burden

›Farm or soil contamination

›Water exposure

›Gross debris or foreign body

›Crush or degloving pattern

›Replant prognosis concern

›High infection risk

Preservation of amputated part

›Amputated part handling

›Dry sterile gauze wrap

›Saline dampened gauze allowed

›Seal in waterproof bag

›Label patient identifiers and time

›Bag on ice slurry

›Avoid direct ice contact

›Time documentation

›Injury time

›Warm ischemia start

›Cooling time

Immediate documentation targets

›Pre intervention documentation

›Perfusion

›Capillary refill

›Color and temperature

›Doppler signal if needed

›Motor

›Flexor digitorum profundus

›Flexor digitorum superficialis

›Extensor tendon function

›Sensory

›Two point discrimination

›Radial and ulnar digital nerve territories

›Wound

›Location and size

›Bone exposure

›Nail bed injury

›Contamination type

›If ring present, immediate removal

›If stuck, ring cutter or string technique

Key decision points

›Replantation candidacy screen

›Thumb amputation

›Strong replant indication

›Multiple digit amputation

›Strong replant indication

›Pediatric amputation

›Lower threshold for replant

›Single non thumb digit

›Consider level and function

›Distal fingertip injury

›Revision vs composite graft vs replant options

›Contraindication flags

›Prolonged ischemia beyond expected tolerance

›Severe crush or avulsion

›Life threatening polytrauma

›Patient preference against replant

›Ischemia time windows

›Digital warm ischemia goal under 12 hours

›Earlier preferred

›Digital cold ischemia goal under 24 hours

›Earlier preferred

Consultation and transfer triggers

›Immediate hand surgery involvement

›Complete amputation

›Near amputation

›Thumb injury

›Multiple digits

›Suspected vascular injury

›Open fracture with exposed bone or tendon

›Major nail bed injury with displaced distal phalanx fracture

›Transfer to replant center

›Microsurgery capability required

›If local facility lacks hand surgery coverage

02History/hx48

Mechanism and timeline

›Injury context

›Guillotine type

›Sharp laceration mechanism

›Crush mechanism

›Door or machinery

›Avulsion mechanism

›Ring avulsion

›Degloving

›Saw injury

›High contamination concern

›Explosion or high energy

›Multiple fragments concern

›Time factors

›Time of injury

›Time of cooling if amputated part

›Time since dressing or tourniquet placement

›Hand dominance

›Dominant hand involvement

›Occupation and functional needs

›Precision work

›Manual labor

Bleeding and infection risk

›Medications

›Anticoagulants

›Antiplatelets

›Comorbidities

›Diabetes

›Peripheral vascular disease

›Immunosuppression

›Smoking or nicotine use

›Exposure history

›Farm or soil

›Freshwater

›Saltwater

›Human or animal bite mechanism

Baseline limb status

›Prior injury or surgery

›Prior tendon repair

›Prior fracture or arthritis

›Baseline sensation

›Pre existing neuropathy

›Tetanus status

›Last booster date

Symptoms suggesting complication

›Neurovascular symptoms

›Numbness or tingling

›Cold digit

›Weakness of flexion or extension

›Compartment type symptoms

›Pain out of proportion

›Escalating tightness under dressing

03Physical Exam/exam68

Global and limb exam

›Physiologic status

›Hemodynamics

›Hypotension or tachycardia

›Pain control adequacy

›Need for escalation

›Hand inspection

›Amputation level

›Distal fingertip

›Distal phalanx

›Middle phalanx

›Proximal phalanx

›MCP level

›Soft tissue loss pattern

›Crush

›Avulsion

›Degloving

›Contamination

›Soil

›Grease

›Glass

›Nail complex

›Subungual hematoma

›Nail plate disruption

›Nail bed laceration

›Wound assessment

›Bone or tendon exposure

›Skin viability

›Blanching or duskiness

›Tenting

›Active bleeding source

›Arterial spurting

›Venous oozing

Neurovascular exam

›Perfusion

›Capillary refill

›Color and temperature

›Pulse oximetry on digit if feasible

›Doppler signal

›Radial digital artery

›Ulnar digital artery

›Sensation

›Two point discrimination

›Radial side

›Ulnar side

›Light touch

›Radial digital nerve

›Ulnar digital nerve

›Motor and tendons

›FDP function

›DIP flexion

›FDS function

›PIP flexion with adjacent digits held

›Extensor mechanism

›DIP extension

›PIP extension

›Intrinsics

›Finger abduction and adduction

Joint and bony exam

›Palpation

›Tenderness over phalanges and metacarpals

›Crepitus

›Range of motion limits

›Mechanical block

›Pain limited motion

›Rotational deformity

›Finger cascade malalignment

PITFALLS

›Common misses

›Tendon laceration with preserved motion due to partial injury

›Digital nerve injury masked by anesthesia or shock

›Tight dressing causing iatrogenic ischemia

04Differential Diagnosis/ddx34

Traumatic diagnoses

›Injury pattern differentials

›Open phalanx fracture

›ICD-10 S62.6X

›Open metacarpal fracture

›ICD-10 S62.3X

›Fingertip amputation

›ICD-10 S68.1

›Thumb amputation

›ICD-10 S68.0

›Ring avulsion injury

›Digital vascular compromise risk

›Nail bed laceration with tuft fracture

›Open fracture equivalent classification

›Co injuries

›Digital artery laceration

›Digital nerve laceration

›Flexor tendon laceration

›Extensor tendon laceration

›Joint violation

›DIP or PIP arthrotomy concern

›Foreign body retained

Non traumatic mimics and complications

›Post injury complications

›Acute infection

›Cellulitis

›Flexor tenosynovitis

›Vascular spasm vs transection

›Acute compartment type ischemia from dressing

Clinical clues and separators

›Differentiation cues

›Insensate digit after adequate perfusion

›Digital nerve injury concern

›Absent capillary refill with pain and pallor

›Arterial injury concern

›Pain with passive extension of digit

›Flexor tenosynovitis concern

05Laboratory Tests/lt18

Baseline tests when indicated

›Operative pathway labs

›CBC for anemia or bleeding concern

›If significant blood loss, repeat trend

›Electrolytes and creatinine for comorbidity or planned admission

›Contrast planning support if CT considered

›Coagulation studies for anticoagulants or major bleeding

›INR target documentation if warfarin

›Infection and crush considerations

›Creatine kinase for severe crush

›Rhabdomyolysis risk

›Lactate for shock or polytrauma

›Global perfusion marker

Type and screen

›Transfusion planning

›If uncontrolled hemorrhage or large tissue loss

›Type and screen

PITFALLS and limits

›Laboratory limitations

›Normal WBC does not exclude early infection

›Normal coagulation tests do not exclude antiplatelet effect

06Diagnostic Tests/dt69

Scoring Systems

›Classification tools

›Gustilo Anderson open fracture classification

›Type I

›Clean wound under 1 cm

›Low energy

›Type II

›Wound 1 to 10 cm

›Moderate soft tissue injury

›Type IIIA

›High energy

›Adequate soft tissue coverage despite extensive laceration

›Type IIIB

›Periosteal stripping

›Bone exposure

›Soft tissue coverage requirement

›Type IIIC

›Arterial injury requiring repair

›Antibiotic escalation linked to higher grade

›Allen fingertip amputation classification

›Type I

›Pulp only

›Type II

›Pulp and nail bed distal

›Type III

›Distal phalanx exposed

›Type IV

›Proximal to lunula

›Management implications

›Revision amputation vs reconstruction vs replant consideration

›Urbaniak ring avulsion classification

›Class I

›Circulation adequate

›Class II

›Circulation inadequate

›Class III

›Complete degloving or amputation

›Revascularization or replantation implications

Radiographs

›Plain film strategy

›Finger views

›AP

›Lateral

›Oblique

›Hand views if proximal extension concern

›Metacarpal injury suspicion

›Post intervention films

›After reduction

›After splinting if alignment concern

›Findings that change urgency

›Intra articular fracture

›Dislocation

›Comminution with instability

›Foreign body radiopaque

MRI

›MRI indications

›Occult fracture with negative radiographs and high suspicion

›Persistent focal bony tenderness

›Tendon or ligament injury characterization when exam limited

›Closed tendon rupture concern

›Osteomyelitis evaluation in delayed presentation

›Persistent drainage or swelling

›MRI limitations

›Limited role in acute open injury when operative exploration planned

›CT indications

›Complex intra articular injury for operative planning

›PIP fracture dislocation

›Comminuted phalanx fracture

›Radiolucent foreign body alternative pathway

›Consider ultrasound first line

›CT limitations

›Not a substitute for neurovascular and tendon exam

07Disposition/dispo32

Transfer and admission criteria

›Emergent transfer to hand surgery or replant center

›Complete amputation with replant potential

›Thumb

›Multiple digits

›Pediatric digit

›Near amputation with tenuous perfusion

›Dusky tissue

›Absent Doppler signal

›Arterial injury suspected

›Persistent ischemia

›Ring avulsion class II or III

›Vascular compromise

›High grade open fracture suspected

›Exposed bone

›Major contamination

›Admission

›Uncontrolled pain

›Need for IV antibiotics and serial exams

›Planned operative washout and fixation

›Social inability to perform wound care safely

Discharge criteria

›Outpatient management possible

›Stable perfusion and sensation

›No tendon dysfunction

›Low contamination

›Reliable follow up within 24 to 72 hours

Follow up timing

›Hand surgery follow up

›Open fracture or nail bed repair

›Within 24 to 48 hours

›Closed stable fracture with intact skin

›Within 5 to 7 days

›Dressing check for fingertip injury

›Within 48 to 72 hours

08Treatment/t130

Immediate life-saving interventions

›Hemorrhage control

›Direct pressure

›Bulky dressing

›If persistent bleeding, tourniquet strategy

›Temporary proximal tourniquet

›Time on documentation

›Intermittent release if safe

›Hemostatic adjuncts

›Topical hemostatic gauze if available

›Constriction relief

›Ring removal

›If swelling, cut ring promptly

›Perfusion preservation

›Loose dressings

›Avoid circumferential tight wrap

›Warmth for vasospasm

›Remove ice from intact digit

Immobilization and Splinting

›Splint strategy

›Finger based

›Aluminum foam splint in position of function

›Buddy taping for stable nondisplaced fractures

›Hand based

›Ulnar gutter for ring and small finger injuries

›Radial gutter for index and middle finger injuries

›Thumb spica for thumb injuries

›Position principles

›Intrinsic plus for hand based splints

›DIP extension for mallet type injuries

›Joint above and below for unstable patterns

›Post splint checks

›Perfusion reassessment

›Cap refill

›Color

›Sensory reassessment

›Two point discrimination

Reduction

›Reduction indications

›Fracture dislocation

›Rotational deformity

›Threatened skin

›Neurovascular compromise

›Analgesia and anesthesia

›Local and regional options

›Digital nerve block

›Lidocaine 1% without epinephrine

›Typical 3 to 5 mL total per digit

›Split radial and ulnar injections

›Bupivacaine 0.25% without epinephrine

›Longer duration option

›Maximum dose safety

›Lidocaine without epinephrine 5 mg/kg

›Bupivacaine 2.5 mg/kg

›If severe pain or multiple injuries, procedural sedation

›Monitoring and readiness

›Continuous SpO2

›Continuous capnography

›Airway equipment at bedside

›Resuscitation meds prepared

›Ketamine IV

›1 mg/kg initial

›Additional 0.25 to 0.5 mg/kg for inadequate sedation

›Propofol IV

›0.5 to 1 mg/kg initial

›Titrate 0.25 to 0.5 mg/kg to effect

›Systemic analgesia

›Acetaminophen PO

›1000 mg once

›Maximum 4000 mg per 24 hours

›Ibuprofen PO

›400 to 600 mg once

›Maximum 2400 mg per 24 hours

›Opioid for severe pain

›Morphine IV 0.05 to 0.1 mg/kg

›Titration every 10 minutes to comfort and respirations

›Reduction technique principles

›Traction and countertraction

›Deformity exaggeration then reverse mechanism

›Gentle sustained force

›Avoid repeated forceful attempts

›Post reduction requirements

›Neurovascular recheck

›Perfusion and sensation documentation

›Post reduction radiographs

›Alignment confirmation

›Immobilization in position of stability

›Failed reduction pathway

›If persistent deformity, urgent hand surgery consult

›If neurovascular deficit persists, immediate transfer pathway

Open fracture medications and timing

›Antibiotic timing

›If open fracture suspected, antibiotics as early as feasible

›Goal within 1 hour of presentation

›Antibiotic selection

›Gustilo type I to II coverage

›Cefazolin IV 2 g

›Repeat every 8 hours if admitted

›If severe beta lactam allergy

›Clindamycin IV 900 mg

›Repeat every 8 hours if admitted

›Gustilo type III or gross contamination

›Cefazolin IV 2 g

›Plus gentamicin IV 5 mg/kg once daily

›Farm or soil contamination concern

›Add penicillin G IV 4 million units

›Repeat every 4 hours if admitted

›Freshwater exposure

›Consider coverage for Aeromonas

›Ciprofloxacin PO or IV per local protocol

›Saltwater exposure

›Consider coverage for Vibrio

›Doxycycline plus ceftazidime per local protocol

›Human bite mechanism

›Amoxicillin clavulanate PO 875 mg

›Twice daily

›If penicillin allergy

›Doxycycline plus metronidazole per local protocol

›Tetanus prophylaxis

›Clean minor wound

›If last dose 10 years or more, Td or Tdap

›Dirty or open fracture wound

›If last dose 5 years or more, Td or Tdap

›If unknown or incomplete immunization, TIG plus Td or Tdap

›Irrigation and dressing principles

›Gentle gross decontamination in ED

›Avoid aggressive high pressure irrigation into tissue planes

›Moist sterile dressing

›Non adherent layer over exposed tissue

DVT prophylaxis when relevant

›VTE considerations

›Upper extremity injury typically low VTE risk

›Pharmacologic prophylaxis rarely indicated solely for finger injury

›If admission for major trauma or prolonged immobilization

›Follow institutional protocol

09Special Populations/sp27

Pregnancy

›Pregnancy considerations

›Analgesia choices

›Acetaminophen preferred

›NSAID avoidance in third trimester

›Antibiotic safety

›Cephalosporins generally compatible

›Aminoglycosides risk discussion if needed

›Imaging considerations

›Extremity radiographs with shielding

›Risk benefit documentation for CT if required

Geriatric

›Geriatric considerations

›Vascular disease prevalence

›Higher ischemia risk with digital artery injury

›Anticoagulant use

›Bleeding and hematoma risk

›Delirium and respiratory risk with opioids

›Lowest effective dose strategy

Pediatrics

›Pediatric considerations

›Replantation threshold

›Lower threshold due to remodeling and long term function

›Sedation and analgesia

›Weight based dosing

›Child life support when available

›Growth plate involvement

›Salter Harris injury consideration near physis

›Non accidental trauma screening when indicated

›Inconsistent story or delay in care

10Background/b34

Epidemiology

›Epidemiology summary

›Fingertip injuries common in emergency care

›Occupational and household mechanisms frequent

›Higher risk occupations

›Construction

›Food preparation

›Machinery work

Pathophysiology

›Injury biology

›Mechanism to tissue pattern mapping

›Sharp injury

›Better vessel and nerve ends for repair

›Crush injury

›Wider zone of devitalization

›Avulsion injury

›Intimal damage and thrombosis risk

›Distal phalanx and nail unit relationship

›Nail bed laceration often coexists with tuft fracture

›Ischemia mechanisms

›Arterial transection

›Vasospasm

›Tight dressing induced compromise

Therapeutic Considerations

›Treatment rationale

›Early antibiotics for open fracture infection reduction

›Broad consensus recommendation

›Early irrigation and debridement planning

›Devitalized tissue predicts infection

›Replantation decision drivers

›Thumb contribution to pinch and grip

›Multiple digits synergy for hand function

›Distal level has higher success than proximal

›Splinting in position of function

›Contracture prevention

›Pain control strategy

›Digital block reduces systemic opioid requirement

11Patient Discharge Instructions/pdi29

copy discharge instructions

›Discharge instructions

›Wound care

›Keep dressing clean and dry

›Do not remove dressing unless instructed

›Elevation above heart for 48 hours

›Splint care

›Keep splint dry

›Do not tighten wrap

›Pain plan

›Acetaminophen as directed

›Ibuprofen as directed unless contraindicated

›Opioid only if prescribed and needed

›Activity restrictions

›No lifting with injured hand

›Protect finger from impact

›Antibiotics

›Take as prescribed

›Do not miss doses

›Return to ED now

›Increasing pain not controlled

›New numbness or inability to move finger

›Pale, blue, or cold finger

›Rapid swelling or tight dressing feeling

›Bleeding through dressing not stopping with pressure

›Fever or spreading redness

›Pus or foul drainage

›Follow up

›Hand surgery appointment timing per discharge plan

›If no appointment within 48 hours, call clinic or return for reassessment

12References/r12

Clinical guidelines and evidence

›Core guidance

›Open fracture antibiotic timing supported by trauma and orthopedic consensus

›Early first dose associated with lower infection risk

›Tetanus prophylaxis per national immunization guidance

›Booster and TIG based on wound type and immunization history

›Replantation indications consistent across hand surgery society teaching

›Thumb and multiple digit amputation prioritized

›Evidence levels notation

›Most replant criteria based on expert consensus

›ACEP Level C equivalence where applicable

›Antibiotic selection for open fractures supported by guideline consensus

›Class I recommendation for prompt antibiotic administration in open fractures

Evidence & Review

Reviewed by SymptomDx Medical Team · Last reviewed March 6, 2026

SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.