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Fracture of metacarpal bone — Clinical Guidelines

Overview

Metacarpal fractures involve breaks in the bones connecting the wrist to the fingers, commonly resulting from direct trauma or forceful impacts. These fractures can significantly impact hand function and require appropriate management to ensure optimal recovery 1 2 3 4.

Diagnosis

Clinical Presentation: Pain, swelling, deformity, and limited range of motion in the affected finger 1 2.

Imaging: X-rays are essential for diagnosis, typically revealing the fracture pattern, displacement, and involvement of specific metacarpal segments 1 2 3.

Grading: Fractures are often classified based on location (e.g., neck, shaft, base) and displacement (non-displaced vs. displaced) 1 2.

Management

Non-Surgical Treatment: Conservative management with immobilization using splints or casts for stable, non-displaced fractures 1 4.

Surgical Options:

- Intramedullary Nails: Flexible intramedullary nails (FIN) offer minimally invasive stabilization; locked vs. non-locked nails show no significant difference in complication rates 1. - Intramedullary Screws: Retrograde intramedullary screws (RIS) demonstrate adequate functional outcomes but have a complication rate of 2.8%, primarily stiffness 3. - Plates and Screws: Locking plates provide better range of motion compared to intramedullary pinning 6.

Post-Treatment: Early mobilization and physiotherapy to prevent stiffness and optimize recovery 1 3 6.

Special Populations

Pediatrics: Not specifically addressed in the provided abstracts.

Elderly: No specific considerations mentioned; general principles apply but may require tailored rehabilitation 4.

Comorbidities: No specific guidelines provided for patients with comorbidities; individualized treatment plans are recommended 4.

Key Recommendations

Use Flexible Intramedullary Nails for Stable Fractures: Minimally invasive approach with comparable outcomes to locked nails; facilitates early mobilization 1 (Evidence: Moderate).

Consider Locking Plates for Improved Range of Motion: Compared to intramedullary pinning, locking plates may offer better functional outcomes 6 (Evidence: Moderate).

Early Mobilization and Physiotherapy: Essential to prevent stiffness and enhance recovery regardless of treatment modality 1 3 6 (Evidence: Moderate).

Surgical Intervention for Displaced Fractures: Indicated for displaced fractures to ensure proper alignment and reduce complications 2 3 (Evidence: Moderate).

Monitor for Complications: Regular follow-up to identify and manage complications such as stiffness, extension lag, and loss of reduction 2 (Evidence: Moderate).

References

1 Brown OS, Smith TO, Mallina RK. Flexible intramedullary nails for the treatment of metacarpal fractures: A systematic review. Chinese journal of traumatology = Zhonghua chuang shang za zhi 2025. link 2 Anene CC, Thomas TL, Matzon JL, Jones CM. Complications Following Intramedullary Screw Fixation for Metacarpal Fractures: A Systematic Review. The Journal of hand surgery 2024. link 3 Morway GR, Rider T, Jones CM. Retrograde Intramedullary Screw Fixation for Metacarpal Fractures: A Systematic Review. Hand (New York, N.Y.) 2023. link 4 Taha RHM, Grindlay D, Deshmukh S, Montgomery A, Davis TRC, Karantana A. A Systematic Review of Treatment Interventions for Metacarpal Shaft Fractures in Adults. Hand (New York, N.Y.) 2022. link 5 Harbrecht A, Hackl M, Leschinger T, Uschok S, Müller LP, Wegmann K. Metacarpal fractures - A method to simulate life-like fractures in human cadaveric specimens for surgical education. Hand surgery & rehabilitation 2022. link 6 Dreyfuss D, Allon R, Izacson N, Hutt D. A Comparison of Locking Plates and Intramedullary Pinning for Fixation of Metacarpal Shaft Fractures. Hand (New York, N.Y.) 2019. link 7 El-Hadidy SS, El-Gilany AH, Nour K, Elsherbeny E, Hamied AHA. Occupational and non occupational metacarpal bone fractures at the Mansoura University Emergency Hospital: A comparative study. Toxicology and industrial health 2019. link 8 Mudrick CA, Owen JR, Wayne JS, Isaacs JE. Unicortical PEEK inset locking fixation for metacarpal fractures: a biomechanical study. European journal of orthopaedic surgery & traumatology : orthopedie traumatologie 2014. link

Fracture of metacarpal bone