## Clinical Case: Smith Fracture (Reverse Colles) **Key Point:** The clinical presentation describes a **Smith fracture** — volar angulation and volar displacement of the distal radius. The question asks which statement is NOT correct. ### Distinguishing Colles from Smith Fracture ```mermaid flowchart TD A[Distal Radius Fracture]:::outcome --> B{Direction of angulation?}:::decision B -->|Dorsal angulation| C[Colles Fracture]:::outcome B -->|Volar angulation| D[Smith Fracture]:::outcome C --> E[FOOSH in elderly]:::outcome D --> F[FOOSH in younger or direct blow]:::outcome C --> G["Dinner fork" deformity]:::outcome D --> H["Reverse dinner fork" deformity]:::outcome E --> I[Dorsal plating or closed reduction]:::action F --> J[Volar plating preferred]:::action ``` ### Colles vs Smith: Key Differences | Feature | Colles | Smith | |---------|--------|-------| | **Angulation** | Dorsal | Volar | | **Displacement** | Dorsal | Volar | | **Radial deviation** | Yes | No | | **Mechanism** | FOOSH in elderly | FOOSH in younger or direct blow | | **Appearance** | "Dinner fork" | "Reverse dinner fork" | | **Preferred fixation** | Dorsal plating or closed reduction | Volar plating (Henry approach) | **High-Yield:** In the case presented, the deformity is **volar angulation** (Smith fracture), NOT dorsal angulation. Therefore, option 4 is incorrect. ### Management of Smith Fracture 1. **Volar plating** — Preferred method; provides direct visualization and anatomic reduction 2. **Volar Henry approach** — Standard surgical approach for volar plating 3. **Closed reduction** — May be attempted in simple fractures but often inadequate 4. **Dorsal plating** — Less commonly used for Smith fractures; reserved for specific patterns **Clinical Pearl:** Smith fractures have a higher risk of: - Volar soft tissue injury (flexor tendons, median nerve) - Anterior interosseous nerve (AIN) injury - Carpal tunnel syndrome - Loss of reduction with closed treatment alone ### Complications Common to Both Colles and Smith 1. **EPL rupture** — Late complication (weeks to months), more common in Colles but can occur in Smith 2. **Loss of radial height** — Leads to post-traumatic arthritis and grip strength loss 3. **Malunion** — Results in functional impairment 4. **Stiffness** — If immobilization is prolonged **Warning:** Do not confuse the primary deformity. Colles = dorsal; Smith = volar. This is tested frequently in NEET PG. [cite:Rockwood & Green's Fractures in Adults Ch 18]
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