Boxer's FractureMANAGEMENT

MUSCULOSKELETAL AND RHEUMATOLOGIC PRESENTATIONS · 12 SECTIONS

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498 items

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01Approach to the Critical Patient/attcp35

Immediate Priorities

›Alarm features requiring urgent action

›Open wound over MCP joint — fight bite until proven otherwise

›High risk for septic arthritis, flexor tenosynovitis, and osteomyelitis

›Wound sustained by striking a mouth or tooth marks present

›Rotational deformity (finger scissoring on fist formation)

›Absolute indication for hand surgery consultation

›Do not attempt reduction before consultation

›Signs of established infection in delayed presentation

›Erythema, purulent drainage, lymphangitis, fever

›Admission for IV antibiotics and operative washout if joint penetration

›Neurovascular compromise

›Absent capillary refill or color change in 5th digit

›Sensory loss in ulnar nerve distribution (4th–5th digit)

›Open fracture with exposed bone or significant soft tissue loss

›Hand surgery consultation immediately

›Wound irrigation, sterile dressing, tetanus prophylaxis

Key Clinical Decision Points

›Angulation versus rotation assessment determines management pathway

›Rotational deformity → surgical referral regardless of angulation

›Volar angulation ≤40° → buddy taping or ulnar gutter splint acceptable

›Volar angulation 40–70° → reduction may be offered; functional outcomes equivalent to conservative care

›Volar angulation >70° → consider reduction; evidence supports conservative care remains viable

›Fight bite exclusion

›Any wound over the MCP joint requires joint irrigation exploration

›Do not primarily close MCP wounds

›Early oral amoxicillin-clavulanate if closed wound with tooth-contact mechanism

›Disposition branching

02History/hx34

Mechanism and Presentation

›Mechanism of injury

›Axial load to clenched fist — punching wall, door, person, or hard object

›What was struck — critical for fight bite risk stratification

›Dominant versus non-dominant hand

›Delayed presentation timing — raises infection concern

Symptom Profile

›Characteristic symptoms

›Dorsal ulnar hand pain and swelling

›Loss of knuckle prominence over 5th MCP joint

›Difficulty making a fist or gripping

›Inability to fully flex the small finger

›Ecchymosis over dorsal hand

Alarm History Features

›Red flag historical elements

›Any wound or laceration over MCP joint

›Tooth marks or striking another person's mouth

›Delayed presentation >24 hours with wound — infection risk markedly elevated

›Fever, warmth, purulent drainage since injury

›Numbness or tingling in ring or small finger — ulnar nerve injury

›Progressive worsening rather than improvement since injury

Risk Factors and Context

›Patient-level risk factors

›Young male — peak incidence 15–35 years

›Alcohol or substance intoxication at time of injury

›Contact sports — boxing, martial arts, MMA

›Interpersonal violence or domestic violence context

›Recreational punching machine use

03Physical Exam/exam28

Inspection

›Visual assessment of the dorsal hand

›Swelling and ecchymosis over dorsal ulnar hand

›Loss of 5th knuckle prominence — depressed knuckle sign

›Visible deformity or angulation of 5th metacarpal

›Any wound, skin break, puncture, or laceration over MCP joint

›If present — measure distance from MCP joint

›Examine wound depth and for joint capsule involvement

Palpation

›Targeted palpation findings

›Point tenderness over 5th metacarpal neck

›Crepitus with gentle manipulation

›Tenderness extending to metacarpal shaft — suggests shaft fracture

›Tenderness at CMC joint base — rules out CMC dislocation

Rotational Assessment

›Rotational deformity evaluation — highest priority exam maneuver

›Ask patient to flex all fingers simultaneously into a full fist

›All fingertips should point toward the scaphoid tubercle in a normal fist

›Scissoring — small finger overlaps or underlaps ring finger = rotational deformity

›Rotational deformity is a surgical indication regardless of angulation

›Even 5° of malrotation produces 1.5 cm of digital overlap

Neurovascular Exam

›Neurovascular status of the hand

›Capillary refill of the 5th digit — normal <2 seconds

›Two-point discrimination in ring and small finger distribution

›Ulnar nerve sensory — dorsal and palmar surface of small finger and ulnar ring finger

›Allen's test if vascular injury suspected

04Differential Diagnosis/ddx22

Fractures of the Hand

›Metacarpal fractures — diagnostic alternatives

›4th metacarpal neck fracture — ICD-10: S62.325A; adjacent metacarpal, similar mechanism

›Metacarpal shaft fracture — ICD-10: S62.315A; more proximal tenderness; different angulation pattern

›Multiple metacarpal fractures — requires CT; surgical management more likely

›5th metacarpal base fracture — tenderness at CMC joint; may involve CMC dislocation

Dislocations and Ligamentous Injuries

›Joint and ligament injuries to exclude

›5th CMC dislocation — ICD-10: S63.075A; pain at base of metacarpal, step-off proximal

›5th MCP dislocation — ICD-10: S63.265A; hyperextension deformity at the joint

›Sagittal band rupture (boxer's knuckle) — extensor tendon subluxation; no fracture on X-ray

›Extensor tendon deviates ulnarly when making a fist

›Requires MRI for definitive diagnosis

Infectious Diagnoses

›Cannot-miss infectious conditions

›Fight bite with septic arthritis — ICD-10: M00.041; joint penetration from tooth laceration

›Pasteurella, Eikenella, oral streptococcus, Staphylococcus aureus

›Requires urgent operative washout if MCP joint penetrated

›Flexor tenosynovitis — ICD-10: M65.841; Kanavel's four signs

›Osteomyelitis — ICD-10: M86.141; delayed presentation with bone involvement

Other Diagnoses

›Conditions that may mimic boxer's fracture

›Scaphoid fracture — ICD-10: S62.001A; radial-sided wrist impact, anatomical snuffbox tenderness

›Extensor tendon avulsion — dorsal base of proximal phalanx; MCP joint involvement

›Contusion without fracture — if X-ray negative with mild mechanism

›Pathologic fracture through bone cyst or metastasis — atypical demographic or minimal mechanism

05Laboratory Tests/lt20

Routine Labs

›Laboratory evaluation — routine boxer's fracture requires no labs

›No mandatory labs for isolated closed boxer's fracture

›Labs indicated only for specific clinical concerns below

Infection Workup

›Labs for suspected fight bite or established infection

›Complete blood count with differential

›Leukocytosis with left shift supports active infection

›Sensitivity for deep space infection is low — do not use to exclude

›C-reactive protein and erythrocyte sedimentation rate

›Elevated in established infection

›Baseline useful for monitoring treatment response

›Blood cultures — two sets before antibiotics

›Indicated if fever, hemodynamic instability, or systemic sepsis features

›Bacteremia rate in hand infections is approximately 10–15%

›Wound culture from abscess or joint aspirate

›Critical for directed antibiotic therapy

›Gram stain from joint aspirate to guide empiric coverage

Point-of-Care Testing

›POC testing relevant to fight bite presentations

›Blood glucose — diabetes impairs healing and increases infection risk

›Lactate if sepsis features present — threshold 2 mmol/l for sepsis definition

›Urine pregnancy test in females of childbearing age — affects imaging and medication decisions

06Diagnostic Tests/dt61

Scoring Systems

›Angulation measurement and classification

›No validated scoring system exists for boxer's fracture management

›Fracture angulation measured on true lateral radiograph of the 5th ray

›Measured as the angle between the metacarpal shaft axis and metacarpal head

›Normal anatomic volar bow of 5th metacarpal is 0–15°

›Clinically significant angulation: >30° in most guidelines; functional impairment if >40°

›Rotational deformity assessment — clinical, not radiographic

›Examine fist formation — all fingers should converge toward scaphoid tubercle

›Even small rotation on X-ray (oblique finger shadow) suggests malrotation

›DASH score — Disabilities of the Arm, Shoulder and Hand

›Baseline and follow-up functional outcome measurement

›Mean DASH score <10 typical at 1 year regardless of treatment method

MRI

›MRI of the hand — indications for boxer's fracture context

›Not routine for acute boxer's fracture

›Plain radiographs are definitive in the vast majority of cases

›MRI indicated when clinical suspicion for occult injury despite negative X-ray

›Extensor tendon and sagittal band injury evaluation

›Best modality for sagittal band rupture (boxer's knuckle)

›Detects partial or complete extensor tendon tears not visible on X-ray

›Occult fracture evaluation

›Sensitivity >95% for occult fractures not seen on plain films

›Bone marrow edema confirms fracture without cortical disruption

›ACR Appropriateness Criteria for acute hand/wrist trauma

›MRI usually appropriate when X-ray negative but clinical suspicion remains high

›CT of the hand — indications for boxer's fracture context

›Not routine for isolated 5th metacarpal neck fracture

›Reserved for complex or intra-articular injuries

›Intra-articular extension assessment

›CT defines articular step-off when plain films equivocal

›Articular involvement >1–2 mm step-off may require surgical intervention

›CMC dislocation evaluation

›CT better delineates CMC joint congruity than plain film

›Commonly missed on plain radiographs — CT indicated if clinically suspected

›Multiple metacarpal fracture mapping

›CT provides 3D reconstruction for surgical planning

›ACR Appropriateness Criteria — CT usually appropriate for suspected CMC dislocation

Ultrasound

›Point-of-care ultrasound — applications in boxer's fracture

›Fracture confirmation

›Cortical disruption visible at metacarpal neck on high-frequency linear probe

›Sensitivity comparable to X-ray for metacarpal neck fractures in experienced hands

›Useful in pregnant patients or when radiation minimization desired

›Guidance for closed reduction

›Real-time ultrasound guidance during Jahss maneuver confirms reduction

›Reduces need for repeat radiographs during reduction

›Published protocols use linear 10–15 MHz probe over dorsal metacarpal neck

›Ulnar nerve block guidance

›US-guided ulnar nerve block at wrist — high success rate with reduced local anesthetic volume

›Feasibility demonstrated in ED setting for hand procedures

›Linear probe at ulnar wrist; nerve adjacent to ulnar artery

›Fight bite joint evaluation

›Ultrasound can identify joint effusion and foreign body (tooth fragment)

›Sensitivity for joint effusion >85% at MCP joint

Plain Radiography

›Hand radiographs — primary diagnostic modality

›Three views required: PA, lateral, oblique

›True lateral of the 5th ray for accurate angulation measurement

›Brewerton view — MCP at 65° flexion; detects intra-articular fractures at metacarpal head

›PA view for fracture pattern, shortening, comminution

›Angulation assessment on lateral view

›Volar angulation measured between shaft and head axes

›Shortening — >5 mm associated with extensor lag

›ACR Appropriateness Criteria — radiographs are usually appropriate and first-line

07Disposition/dispo31

Discharge Criteria

›Criteria for ED discharge — majority of patients qualify

›Closed isolated 5th metacarpal neck fracture

›No rotational deformity

›No open wound or fight bite

›Adequate pain control achieved

›Appropriate immobilization applied — buddy tape or ulnar gutter splint

›Reliable follow-up arranged within 1–2 weeks

›Discharge instructions provided — return precautions clearly documented

›Evidence: Over 20% of patients receive ED-only care with no subsequent follow-up and no cases of symptomatic nonunion or malunion requiring surgery

Admission and Urgent Consultation Criteria

›Indications for admission or emergent hand surgery consultation

›Fight bite with suspected joint penetration

›Requires operative irrigation and debridement

›IV antibiotics initiated in ED

›Established deep space infection — flexor tenosynovitis, osteomyelitis, abscess

›Open fracture

›IV antibiotics within 1 hour

›Sterile dressing and splinting

›Neurovascular compromise

›Multiple metacarpal fractures or polytrauma

Outpatient Hand Surgery Referral

›Criteria for non-urgent hand surgery referral within 1 week

›Rotational deformity

›Intra-articular fracture with articular step-off

›Significant angulation in patients with high functional demands

›Professional musicians, surgeons, elite athletes

›Failed conservative management at follow-up

08Treatment/t86

Analgesia

›Pain management — acute boxer's fracture

›NSAIDs — first-line oral analgesia

›Ibuprofen 400–600 mg PO every 6–8 hours with food

›Naproxen 500 mg PO every 12 hours

›Contraindicated if renal impairment, GI bleed risk, or pregnancy

›Acetaminophen — adjunct or NSAID alternative

›650–1000 mg PO every 6–8 hours

›Maximum 4 g/day; reduce to 2 g/day in liver disease

›Opioids — short course only if severe pain uncontrolled by NSAIDs

›Avoid routine opioid prescribing for isolated metacarpal neck fracture

›If prescribed: lowest effective dose for shortest duration (3–5 days maximum)

Regional Anesthesia for Reduction

›Ulnar nerve block — preferred anesthesia for reduction

›Anatomy: ulnar nerve passes medial to ulnar artery at wrist crease

›Landmark technique

›Inject 2–3 mL of 1–2% lidocaine without epinephrine at ulnar wrist

›Inject superficial to flexor carpi ulnaris tendon

›Dorsal branch block: additional 2 mL subcutaneously around ulnar aspect of wrist

›Ultrasound-guided technique

›Linear probe at distal wrist; identify nerve adjacent to ulnar artery

›In-plane needle approach; circumferential spread of 3–5 mL local anesthetic

›Higher success rate and lower dose than landmark technique

›Onset 5–10 minutes; duration 1–4 hours depending on agent

›Hematoma block — alternative if ulnar nerve block not feasible

›2–3 mL of 1–2% lidocaine without epinephrine injected into fracture hematoma

›Lower efficacy than nerve block for complete anesthesia

Closed Reduction Technique

›Jahss maneuver — standard closed reduction technique

›Step 1: Flex MCP and PIP joints to 90°

›Step 2: Apply dorsal-to-volar force through proximal phalanx onto the metacarpal head

›Step 3: Simultaneously apply volar-to-dorsal force on the metacarpal shaft

›Reassess angulation clinically and radiographically after reduction

›Important caveat: Reduction is frequently lost at follow-up

›Loss of reduction does not correlate with worse functional outcomes

›ACEP Level B evidence supports that functional outcomes are equivalent regardless of reduction

›Ultrasound guidance during reduction confirms real-time alignment

Immobilization Options

›Conservative immobilization — evidence-based options

›Buddy taping — 4th digit taped to 5th digit

›Level I evidence — noninferior to reduction and casting

›28 fewer days off work compared to cast immobilization

›Apply padding between digits to prevent skin maceration

›Tape at proximal and middle phalanx — do not cross joints

›Immediate mobilization permitted

›Ulnar gutter splint — traditional approach

›MCP at 70–90° of flexion; IP joints free to move

›Duration 2–3 weeks

›Plaster or fiberglass; extend from distal forearm to 5th fingertip

›Post-splint finger exercises encouraged once splint removed

›Functional metacarpal brace or dynamic splint

›Allows earlier mobilization than rigid cast

›Faster grip strength recovery in comparative trials

›Soft wrap/buddy taping without reduction for angulation ≤70°

›Noninferior to reduction and casting in prospective multicenter RCT

›11 fewer days off work

›Immediate mobilization with pressure bandage alone for 1 week

›Valid option supported by prospective RCT for angulation ≤70°

Surgical Treatment

›Surgical indications and options

›Absolute indications for operative management

›Rotational deformity (scissoring)

›Open fracture

›Intra-articular fracture with significant articular step-off (>1–2 mm)

›Multiple metacarpal fractures with instability

›Fight bite requiring operative washout

›Relative surgical indications

›High functional demand patient — professional musician, elite athlete

›Angulation >70° with patient unwilling to accept residual cosmetic deformity

›Surgical options

›Percutaneous K-wire pinning

›Intramedullary nail fixation

›Open reduction internal fixation with plate and screws

›Network meta-analysis: conservative treatment has the lowest complication rate

Fight Bite Management

›Fight bite — specific treatment protocol

›Wound care

›Copious irrigation with normal saline under pressure

›Wound exploration — assess for joint capsule violation, tendon injury, foreign body

›Do not close the wound primarily

›Sterile wet dressing

›Antibiotic prophylaxis — first-line

›Amoxicillin-clavulanate 875/125 mg PO twice daily for 5–7 days

›Covers oral flora including Eikenella corrodens and Pasteurella multocida

›Penicillin-allergic alternatives

›Moxifloxacin 400 mg PO daily

›Ciprofloxacin 500 mg PO twice daily PLUS metronidazole 500 mg PO three times daily

›IV antibiotics if established infection

›Ampicillin-sulbactam 3 g IV every 6 hours

›Piperacillin-tazobactam 3.375 g IV every 6 hours if severe or MRSA concern

›Tetanus prophylaxis — update if >5 years for contaminated wound

›Hand surgery consultation for operative washout if joint penetration suspected

09Special Populations/sp65

Pregnancy

›Boxer's fracture in pregnancy

›Fracture management

›Buddy taping preferred — avoids radiation from repeat X-rays

›Ulnar gutter splint safe throughout pregnancy

›Closed reduction technique unchanged

›Surgical fixation deferred to postpartum if possible; use if absolute indication

›Analgesia considerations

›Acetaminophen preferred — safest analgesic in pregnancy

›NSAIDs — avoid in third trimester (premature ductus closure risk)

›NSAIDs relatively acceptable in first and second trimester for short course

›Opioids — avoid unless severe uncontrolled pain; risk of neonatal abstinence syndrome

›Regional anesthesia for reduction

›Lidocaine without epinephrine safe in pregnancy for nerve block

›US-guided technique reduces total dose requirement

›Antibiotics for fight bite

›Amoxicillin-clavulanate safe in pregnancy (Category B equivalent)

›Avoid fluoroquinolones and tetracycline

›Imaging

›Hand X-ray — minimal fetal radiation exposure; acceptable when clinically indicated

›Shielding with lead apron recommended

›Ultrasound preferred for fracture confirmation and reduction guidance when feasible

Geriatric

›Boxer's fracture in elderly patients

›Epidemiology

›Less common mechanism — consider pathologic fracture if minimal trauma

›Falls with outstretched hand may cause atypical metacarpal injuries

›Underlying bone disease assessment

›Osteoporosis evaluation if recurrent fractures or low-energy mechanism

›DEXA scan referral if not previously performed

›Immobilization considerations

›Skin fragility — extra padding under splint; avoid tight casting

›Monitor for pressure sores and skin breakdown under buddy tape

›Buddy taping suitable with careful skin management

›Analgesia

›NSAIDs — use with caution; increased GI bleed risk, renal impairment, falls risk

›Acetaminophen preferred first-line in elderly — 650 mg every 6 hours

›Minimize opioid use — delirium, falls, constipation risk

›Functional considerations

›Impaired hand function has major impact on independence

›Occupational therapy referral early for hand rehabilitation

›Lower threshold for hand surgery referral if functional demands are high

›Comorbidity considerations

›Anticoagulation — aspirin and warfarin patients at higher risk of hematoma

›Diabetes — heightened wound infection risk; close follow-up

Pediatrics

›Boxer's fracture in pediatric patients

›Epidemiology and anatomy

›Less common in young children; peak in adolescent males

›Growth plate (physeal) injury must be excluded — Salter-Harris classification

›Physeal fractures of the metacarpal neck are Salter-Harris type II most commonly

›Radiographic interpretation

›Comparison views of contralateral hand may be needed if growth plate uncertain

›Salter-Harris I fractures may appear radiographically normal — physeal tenderness alone indicates fracture

›Angulation tolerance

›Children have greater remodeling potential — higher angulation tolerated

›Up to 40–50° volar angulation acceptable in children under 10 years

›Adolescents near skeletal maturity — treat as adults

›Immobilization

›Ulnar gutter splint for 3–4 weeks standard

›Buddy taping well tolerated in cooperative adolescents

›Analgesia

›Ibuprofen 10 mg/kg PO every 6–8 hours (max 40 mg/kg/day)

›Acetaminophen 15 mg/kg PO every 4–6 hours (max 75 mg/kg/day)

›Intranasal fentanyl 1.5 mcg/kg for procedural pain before reduction

›Physeal injury follow-up

›Pediatric orthopedic follow-up within 1 week for physeal fractures

›Growth arrest is rare but must be discussed with family

10Background/b61

Epidemiology

›Epidemiological features of boxer's fracture

›Incidence and prevalence

›Accounts for approximately 20% of all hand fractures

›Most common metacarpal fracture

›One of the most common ED orthopedic injuries

›Demographics

›Peak incidence in males aged 15–35 years

›Male-to-female ratio approximately 9:1

›Alcohol intoxication present in a significant proportion of cases

›Mechanism distribution

›Punching inanimate object — most common

›Interpersonal violence — significant proportion

›Contact sports and boxing injuries

›Recreational punching machines — increasingly recognized mechanism

›Healthcare utilization

›High volume ED presentation worldwide

›Epidemiology of boxing-related upper extremity injuries rising in US EDs from 2014 to 2023

Pathophysiology

›Mechanism of fracture and anatomic consequences

›Force transmission

›Axial load along 5th ray through a clenched fist

›Concentrated stress at the metacarpal neck — the weakest point of the metacarpal

›Weak intrinsic muscles dorsal and strong palmar muscles cause volar angulation of distal fragment

›Fracture anatomy

›Transverse or short oblique fracture pattern at metacarpal neck

›Distal fragment angulates volarly — creates dorsal convexity and loss of knuckle prominence

›Comminution uncommon except with high-energy mechanisms

›Rotational deformity mechanism

›Unequal force application or associated soft tissue injury produces rotational component

›5° of malrotation causes approximately 1.5 cm of digital overlap at the fingertip

›Healing biology

›Mean radiological union time approximately 7–8 weeks

›Non-union is rare — rich blood supply to metacarpal neck

›Extensive remodeling capacity especially in younger patients

›Fight bite pathophysiology

›Human bite wound over MCP joint — tooth penetrates joint capsule during punching

›Retraction of injured tissues once fist opens traps bacteria deep to joint capsule

›Oral polymicrobial contamination — Eikenella corrodens is pathognomonic for human bite

›Rapid progression to septic arthritis, osteomyelitis, and deep space infection possible within 24–48 hours

Therapeutic Considerations

›Evidence base for treatment decisions

›Conservative versus surgical treatment

›Vast majority (~90%) managed conservatively with excellent functional outcomes

›Surgical treatment does not significantly improve functional outcomes for isolated angulation

›Network meta-analysis of RCTs: conservative treatment has the lowest complication rate

›ACEP Level B recommendation: functional outcomes equivalent across immobilization strategies

›Angulation thresholds — evolving evidence

›Historical threshold of 40° angulation as surgical indication is challenged

›Prospective RCT: immediate mobilization gives good results with angulation up to 70°

›Functional outcomes (grip strength, range of motion, DASH) do not correlate with residual angulation

›Cosmetic deformity (depressed knuckle) remains permanent but does not impair function

›Buddy taping versus casting — key evidence

›Level I RCT: buddy taping noninferior to reduction and casting with 28 fewer days off work

›Multicenter RCT: soft wrap/buddy taping noninferior to reduction and casting with 11 fewer days off work

›Early mobilization consistently produces faster return to work and equivalent final function

›Reduction maintenance

›Reduction is frequently lost at follow-up in conservative management

›Loss of reduction does not worsen functional outcomes — important counseling point

›Ultrasound-guided reduction improves accuracy and reduces repeat radiograph need

›ICD-10 coding

›S62.325A — fracture of neck of fifth metacarpal, initial encounter

›S62.325D — fracture of neck of fifth metacarpal, subsequent encounter

›S62.325S — fracture of neck of fifth metacarpal, sequela

11Patient Discharge Instructions/pdi33

copy discharge instructions

›Boxer's Fracture — Discharge Instructions

›Your diagnosis

›You have a boxer's fracture — a break at the neck of the small bone leading to your little finger

›This is a very common fracture that heals well in most people without surgery

›Your treatment today

›Your finger has been buddy-taped or placed in a splint to protect the fracture

›Keep the splint or tape on and dry at all times

›Do not remove the splint without instruction from your doctor

›Pain management at home

›Take ibuprofen 400–600 mg with food every 6–8 hours as needed for pain

›Acetaminophen 500–1000 mg every 6 hours can be added or used instead

›Apply an ice pack wrapped in a cloth for 15–20 minutes several times a day for the first 48 hours

›Elevate your hand above heart level when resting to reduce swelling

›Activity restrictions

›Avoid punching, gripping heavy objects, or contact sport for 6–8 weeks

›You may use your other fingers normally

›Gentle finger motion of the unaffected fingers is encouraged to prevent stiffness

›Driving restriction until you have adequate grip strength and comfort

›What to expect during healing

›Swelling and bruising are normal and will improve over 1–2 weeks

›Your knuckle may remain slightly flattened permanently — this is cosmetic only and does not affect hand function

›Most patients return to work within 2–4 weeks with buddy taping

›Bone usually heals within 6–8 weeks

›Follow-up appointment

›Return to your family doctor or hand clinic in 1–2 weeks for repeat X-ray

›Do not miss this appointment — your fracture alignment will be checked

›Return to emergency immediately if you develop

12References/r22

Guidelines and Key Sources

›Fracture management and treatment evidence

›Boeckstyns MEH. Challenging the Dogma: Severely Angulated Neck Fractures of the Fifth Metacarpal Must Be Treated Surgically. Journal of Hand Surgery, European Volume. 2021. PMID: 33135525

›Poolman RW, Goslings JC, et al. Conservative Treatment for Closed Fifth Metacarpal Neck Fractures. Cochrane Database of Systematic Reviews. 2005

›Luciani MA, Mayers Y, Warnick EP, et al. Trends in the Management of Fifth Metacarpal Neck Fractures. Journal of Hand Surgery. 2024. PMID: 36216683

›Stash N, Kamal RN, Richard M, Shapiro LM. Metacarpal Fractures: An Evidence-Based Review to Guide Treatment. JAAOS. 2025. PMID: 40627824

›Martínez-Catalán N, Pajares S, et al. Buddy Taping Versus Closed Reduction and Cast Immobilization in Fifth Metacarpal Neck Fractures. Journal of Hand Surgery. 2020. PMID: 32718787

›Statius Muller MG, Poolman RW, et al. Immediate Mobilization Gives Good Results in Boxer's Fractures With Volar Angulation Up to 70 Degrees. Archives of Orthopaedic and Trauma Surgery. 2003. PMID: 14639483

›van Aaken J, Fusetti C, et al. Fifth Metacarpal Neck Fractures Treated With Soft Wrap/Buddy Taping Compared to Reduction and Casting. Archives of Orthopaedic and Trauma Surgery. 2016. PMID: 26559192

›Zong SL, Zhao G, et al. Treatments for the Fifth Metacarpal Neck Fractures: Network Meta-Analysis of RCTs. Medicine. 2016. PMID: 26986129

›Yildirımkaya B, Söylemez MS, et al. Plaster Splint vs Dynamic Stabilization Splint for Boxer's Fractures. Journal of Orthopaedic Science. 2024. PMID: 37580179

›Zawam SH, et al. Conservative Treatment Versus Transverse Pinning in Fifth Metacarpal Neck Fractures. European Journal of Trauma and Emergency Surgery. 2024. PMID: 38151577

Fight Bite and Infection References

›Infectious and fight bite management sources

›Perron AD, Miller MD, Brady WJ. Orthopedic Pitfalls in the ED: Fight Bite. American Journal of Emergency Medicine. 2002. PMID: 11880877

›Goon PK, Mahmoud M, Rajaratnam V. Hand Trauma Pitfalls: A Retrospective Study of Fight Bites. European Journal of Trauma and Emergency Surgery. 2008. PMID: 26815618

›Stevens DL, Bisno AL, Chambers HF, et al. Practice Guidelines for Skin and Soft Tissue Infections: 2014 IDSA Update. Clinical Infectious Diseases. 2014

Imaging and Procedural References

›Imaging and regional anesthesia sources

›Expert Panel on Musculoskeletal Imaging: Torabi M, Lenchik L, et al. ACR Appropriateness Criteria Acute Hand and Wrist Trauma. JACR. 2019

›Thom C, Han D, Vandersteenhoven P, et al. Point-of-Care Ultrasound for Guidance of Closed Reduction of Fifth Metacarpal Neck Fracture. Journal of Emergency Medicine. 2023. PMID: 37019497

›Liebmann O, Price D, Mills C, et al. Feasibility of Forearm Ultrasonography-Guided Nerve Blocks for Hand Procedures in the ED. Annals of Emergency Medicine. 2006. PMID: 17052557

›Chandrasoma J, Harrison TK, et al. Peripheral Nerve Blocks for Hand Procedures. New England Journal of Medicine. 2018

›Childress MA, Olivas J, Crutchfield A. Common Finger Fractures and Dislocations. American Family Physician. 2022. PMID: 35704814

›Megafu MN, Nerenberg N, Pandya H, et al. Epidemiology of Boxing-Related Upper Extremity Injuries Presenting to Emergency Departments 2014–2023. Journal of Emergency Medicine. 2025. PMID: 41270318

Learn More: Boxer's Fracture→

Comprehensive Clinical Review

Structured, evidence-informed, long-form analysis for deeper understanding.

Evidence & Review

Reviewed by SymptomDx Medical Team · Last reviewed August 18, 2026

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