A Galeazzi fracture is a fracture of the distal to middle third of the radial shaft with associated disruption (subluxation or dislocation) of the distal radioulnar joint (DRUJ). It has been historically called the "fracture of necessity" because it almost always requires operative fixation in adults. [1-2] Underdiagnosis is common — the DRUJ disruption is overlooked in up to two-thirds of cases on initial presentation. [3-4]
1. History
- Mechanism: Fall on an outstretched hand (FOOSH) with the wrist extended and forearm pronated; also direct blow or high-energy trauma (MVC, sports) [1][5]
- Key HPI questions:
- Exact mechanism and force of injury
- Hand dominance
- Timing of injury and any prior manipulation or splinting
- Pain location — forearm shaft AND wrist (dual-site pain is a critical clue)
- Ability to pronate/supinate the forearm
- Numbness, tingling, or weakness in the hand (neurovascular screening)
- Prior forearm/wrist injuries or surgeries
- Important negatives: Absence of elbow pain (helps distinguish from Monteggia); absence of open wound
2. Alarm Features
- Open fracture — bone protruding or wound communicating with fracture
- Compartment syndrome — pain out of proportion, pain with passive finger extension, tense forearm, paresthesias; forearm compartment syndrome occurs in ~8–15% of diaphyseal forearm fractures [6-7]
- Neurovascular compromise — sensory or motor deficit in the median, ulnar, or radial nerve distributions; absent radial/ulnar pulses
- Radial nerve injury — particularly the posterior interosseous nerve (PIN) or superficial sensory branch; reported in up to ~20% of surgically treated cases [8]
- Irreducible DRUJ — suggests interposed soft tissue (extensor carpi ulnaris tendon, ulnar styloid fragment) [2][9]
3. Medications
- Acute pain management: NSAIDs (ibuprofen 400–600 mg PO, ketorolac 15–30 mg IV), acetaminophen, opioids for severe pain (morphine 0.1 mg/kg IV titrated)
- Caution: Avoid excessive opioids that may mask compartment syndrome symptoms [10]
- Perioperative antibiotics: First-generation cephalosporin (cefazolin 2 g IV) for surgical prophylaxis; add gentamicin for open fractures
- Tetanus prophylaxis if open fracture and immunization not current
- DVT prophylaxis generally not required for isolated upper extremity fractures unless prolonged immobilization with additional risk factors
4. Diet
- No specific acute dietary restrictions
- Adequate calcium (1000–1200 mg/day) and vitamin D (600–800 IU/day) for bone healing
- Protein-rich diet to support fracture healing
- Smoking cessation counseling — smoking significantly impairs fracture union
5. Review of Systems
- MSK: Pain in forearm, wrist, elbow; limited ROM; deformity
- Neuro: Numbness/tingling in hand (median, ulnar, radial nerve distributions); weakness of grip, finger/wrist extension
- Vascular: Coolness, pallor, or cyanosis of the hand
- Skin/soft tissue: Swelling, ecchymosis, open wounds, tense compartments
- Constitutional: Mechanism-related — polytrauma screening if high-energy mechanism (head injury, chest/abdominal pain)
6. Collateral History and Family History
- Witnesses to mechanism (especially in sports, assault, or MVC)
- Anticoagulant or antiplatelet use (increases compartment syndrome risk) [11]
- History of metabolic bone disease, osteoporosis, or pathologic fracture risk
- Family history generally not contributory unless underlying bone disorder (e.g., osteogenesis imperfecta in pediatric patients)
7. Risk Factors
- High-energy trauma (MVC, falls from height, contact sports)
- Young adult males — peak incidence [8]
- Sports involving falls (cycling, skateboarding, football, gymnastics) [9]
- Osteoporosis or metabolic bone disease (lower-energy mechanism in elderly)
- Anticoagulant use (increases risk of compartment syndrome) [11]
8. Differential Diagnosis
- Isolated radial shaft fracture (without DRUJ disruption) — the most common misdiagnosis; always assess the DRUJ [1][4]
- Monteggia fracture — proximal ulna fracture + radial head dislocation (disruption is at the elbow, not the wrist) [5][12]
- Essex-Lopresti injury — radial head fracture + interosseous membrane disruption + DRUJ injury; involves the entire forearm axis [12]
- Both-bone forearm fracture — fractures of both radius and ulna without isolated DRUJ disruption
- Colles/Smith fracture — distal radius fracture without DRUJ dislocation [5]
- Barton fracture — distal radius fracture with radiocarpal dislocation [5]
- Isolated DRUJ dislocation — without radial shaft fracture
9. Past Medical History
- Prior forearm or wrist fractures, DRUJ instability, or surgeries
- Osteoporosis, osteopenia, vitamin D deficiency
- Rheumatoid arthritis or other inflammatory arthropathy affecting the wrist
- Metabolic bone disease (Paget's, hyperparathyroidism)
- Diabetes (impairs wound healing)
- Smoking history (impairs fracture union)
10. Physical Exam
- Inspection: Forearm deformity, swelling, ecchymosis; prominence of the ulnar head at the wrist (dorsal or volar); assess for open wounds
- Palpation:
- Tenderness along the radial shaft (mid to distal third)
- Tenderness and prominence at the DRUJ — this is the key finding that distinguishes Galeazzi from an isolated radial shaft fracture [5]
- Palpate the entire forearm, elbow (rule out Monteggia), and carpal bones
- ROM: Painful and limited forearm pronation/supination; limited wrist motion
- Neurovascular exam:
- Radial and ulnar pulses, capillary refill
- Sensory testing: median nerve (palmar thumb/index/middle), ulnar nerve (small finger), radial nerve (dorsal first web space)
- Motor testing: thumb extension (PIN), finger flexion/extension, grip strength
- Compartment assessment: Palpate forearm compartments for tenseness; assess pain with passive finger extension (most reliable early sign) [11]
11. Lab Studies
- Labs are generally not required for isolated Galeazzi fractures
- If surgery planned: CBC, BMP, coagulation studies, type and screen per institutional protocol
- If compartment syndrome suspected: Serum CK (elevated >669 U/L associated with increased risk), lactate [13]
- If open fracture: CBC, blood cultures if concern for infection
12. Imaging
- First-line: AP and lateral radiographs of the entire forearm including wrist and elbow joints — this is critical to avoid missing the DRUJ disruption or concomitant elbow pathology [1][4]
- Key radiographic findings:
- Fracture of the distal to middle third of the radial shaft (transverse or short oblique pattern) [2]
- Widening of the DRUJ space on AP view [5]
- Radial shortening >5 mm (suggestive but only moderately predictive of DRUJ instability) [14]
- Fracture within 7.5 cm of the lunate facet (associated with higher risk of DRUJ instability, though not perfectly predictive) [14-15]
- Ulnar styloid fracture — present in ~20% of cases and significantly associated with DRUJ instability (p=0.02) [14]
- Dorsal or volar subluxation of the ulna on lateral view
- CT: Rarely needed acutely; may help assess DRUJ congruity or complex fracture patterns
- MRI: Not indicated acutely; may be used for chronic DRUJ instability or TFCC evaluation
- Pearl: The gold standard for DRUJ instability is intraoperative assessment after radial fixation, not radiographic criteria alone [14]
13. Special Tests
- DRUJ ballottement test: Stabilize the distal radius and translate the ulna dorsally and volarly — increased laxity or pain suggests DRUJ disruption (limited utility in the acute setting due to pain)
- Piano key sign: Depressing the prominent ulnar head, which springs back up — indicates DRUJ instability
- Fovea sign: Tenderness at the ulnar fovea (between the ulnar styloid and FCU tendon) — suggests TFCC injury
- Intraoperative DRUJ stress test: After radial ORIF, the DRUJ is stressed in pronation, supination, and neutral to assess stability — this is the definitive assessment [1][14]
14. ECG
- Not routinely indicated for isolated Galeazzi fracture
- Obtain if procedural sedation is planned in the ED
- Obtain if high-energy polytrauma or elderly patient with cardiac history
15. Assessment
A Galeazzi fracture is a fracture-dislocation combining a radial shaft fracture with DRUJ disruption. It accounts for approximately 7% of forearm fractures. [8] The injury is notoriously underdiagnosed — only ~31% of Galeazzi lesions are recognized on initial presentation in some series. [3] In adults, this is considered an unstable injury with an 80% failure rate with conservative management, earning it the designation "fracture of necessity" for operative treatment. [16]
Classification (Rettig & Raskin)
- Type I: Fracture within 7.5 cm of the distal radial articular surface — higher rate of DRUJ instability (~55%) [15]
- Type II: Fracture >7.5 cm from the articular surface — lower rate of DRUJ instability (~6%) [15]
Pediatric variant (Galeazzi-equivalent): Distal radial fracture with ulnar physeal separation rather than DRUJ dislocation; generally treatable with closed reduction and casting [3][17]
16. Treatment Plan
ED Management
- Splint in a well-padded sugar-tong or long-arm posterior splint with the forearm in neutral to slight supination
- Adequate analgesia
- Neurovascular checks before and after splinting
- Serial compartment checks if high-energy mechanism
Definitive Treatment — Adults
- Open reduction and internal fixation (ORIF) of the radial shaft with a 3.5 mm dynamic compression plate (volar Henry approach preferred) [1][16][18]
- Intraoperative DRUJ assessment after radial fixation:
- If DRUJ is stable → immobilize in above-elbow cast/splint in supination or neutral for 4–6 weeks [19]
- If DRUJ is unstable but reducible → closed reduction + K-wire transfixion of the DRUJ for 4–6 weeks, or immobilization in full supination [15][18]
- If DRUJ is irreducible → open reduction of the DRUJ (interposed tissue removal) ± TFCC repair [2][9]
- Postoperative immobilization in a long-arm splint/cast for 4–6 weeks, followed by progressive ROM exercises [18]
Definitive Treatment — Children
- Closed reduction and long-arm casting is usually successful [3]
- Operative fixation reserved for irreducible fractures, failed closed reduction, or older adolescents [17]
17. Disposition
- Admission criteria:
- Open fracture
- Compartment syndrome (emergent fasciotomy)
- Neurovascular compromise
- Polytrauma
- Need for urgent/emergent operative fixation
- Discharge criteria:
- Closed fracture with adequate splinting
- Intact neurovascular exam
- No signs of compartment syndrome
- Reliable patient with orthopedic follow-up arranged within 48–72 hours
- Orthopedic consultation in the ED: Recommended for all adult Galeazzi fractures given the near-universal need for operative fixation [1][4]
18. Follow Up / Return Precautions
- Follow-up: Orthopedic surgery within 48–72 hours for operative planning; sooner if any concern
- Return precautions — instruct patient to return immediately for:
- Increasing pain despite medication (compartment syndrome)
- Numbness, tingling, or weakness in the fingers
- Fingers turning white, blue, or cold
- Inability to move fingers
- Increasing swelling not relieved by elevation
- Foul smell, drainage, or fever (if open fracture)
- Expected recovery:
- Surgical fixation typically within 1–2 weeks of injury
- Immobilization for 4–6 weeks post-op
- Physical therapy for ROM and strengthening starting at 6 weeks
- Return to full activity at 3–6 months depending on healing
- Average grip strength recovery ~71% of normal [8]
- Complications to counsel about: DRUJ instability, loss of forearm rotation, chronic wrist pain, malunion, osteoarthritis [1]
References
1. Galeazzi Fracture. — Atesok KI, Jupiter JB, Weiss AP. The Journal of the American Academy of Orthopaedic Surgeons. 2011.
2. Complex Volar Distal Radioulnar Joint Dislocation Occurring in a Galeazzi Fracture. — Giangarra CE, Chandler RW. Journal of Orthopaedic Trauma. 1989.
3. Galeazzi Lesions in Children and Adolescents: Treatment and Outcome. — Eberl R, Singer G, Schalamon J, Petnehazy T, Hoellwarth ME. Clinical Orthopaedics and Related Research. 2008.
4. Orthopedic Pitfalls in the ED: Galeazzi and Monteggia Fracture-Dislocation. — Perron AD, Hersh RE, Brady WJ, Keats TE. The American Journal of Emergency Medicine. 2001.
5. Common Fractures of the Radius and Ulna. — Patel DS, Statuta SM, Ahmed N. American Family Physician. 2021.
6. Diagnosis and Treatment of Acute Extremity Compartment Syndrome. — von Keudell AG, Weaver MJ, Appleton PT, et al. Lancet. 2015.
7. The Correlation Between the OTA/AO Classification System and Compartment Syndrome in Both Bone Forearm Fractures. — Auld TS, Hwang JS, Stekas N, et al. Journal of Orthopaedic Trauma. 2017.
8. Results of Compression-Plating of Closed Galeazzi Fractures. — Moore TM, Klein JP, Patzakis MJ, Harvey JP. The Journal of Bone and Joint Surgery. American Volume. 1985.
9. Arthroscopic Reduction of an Irreducible Distal Radioulnar Joint in Galeazzi Fracture-Dislocation Due to a Fragment of the Ulnar Styloid: A Case Report. — Iwamae M, Yano K, Kaneshiro Y, Sakanaka H. BMC Musculoskeletal Disorders. 2019.
10. Best Practices Guidelines For Acute Pain Management In Trauma Patients. — Andrew Bernard, Douglas R. Oyler PharmD, Jeffrey O. Anglen MD FACS FAAOS, et al American College of Surgeons (2020). 2020.
11. Best Practices In The Management Of Orthopaedic Trauma. — Matthew L. Davis MD FACS, Gregory J. Della Rocca MD PhD FACS, Megan Brenner MD MS RPVI FACS, et al American College of Surgeons (2015). 2015.
12. Fractures and Dislocations of the Forearm. — Curtis RJ, Corley FG. Clinics in Sports Medicine. 1986.
13. The Impact of Both-Bone Forearm Fractures on Acute Compartment Syndrome: An Analysis of Predisposing Factors. — Yang S, Wang T, Long Y, et al. Injury. 2023.
14. Galeazzi Fractures: Is DRUJ Instability Predicted by Current Guidelines?. — Tsismenakis T, Tornetta P. Injury. 2016.
15. Galeazzi Fracture-Dislocation: A New Treatment-Oriented Classification. — Rettig ME, Raskin KB. The Journal of Hand Surgery. 2001.
16. Galeazzi Fracture-Dislocations. — Mikić ZD. The Journal of Bone and Joint Surgery. American Volume. 1975.
17. Pronation Type Galeazzi-Equivalent Fracture: A Rare Case Report (CARE-compliant). — Chae SB, Kwon JB. Medicine. 2019.
18. Unstable Fracture-Dislocations of the Forearm (Monteggia and Galeazzi Lesions). — Reckling FW. The Journal of Bone and Joint Surgery. American Volume. 1982.
19. Immobilization in Supination Versus Neutral Following Surgical Treatment of Galeazzi Fracture-Dislocations in Adults: Case Series. — Park MJ, Pappas N, Steinberg DR, Bozentka DJ. The Journal of Hand Surgery. 2012.