Understanding Bunion Surgery Hardware: Screws, Plates, and Pins Explained
When your surgeon mentions "hardware," they're referring to the metal implants used to hold bones in their corrected position while they heal. Most bunion procedures use some type of internal fixation — and understanding what's in your foot can ease a lot of anxiety.
Types of Bunion Surgery Hardware
Screws (Most Common)
Titanium or stainless steel screws are the workhorse of bunion fixation. They compress bone surfaces together to promote healing.
- Headless compression screws: Buried completely within the bone — no palpable hardware
- Cortical screws: Standard screws with visible heads — slightly more prominent
- Cannulated screws: Hollow center allows placement over a guide wire — more precise positioning
- Typical number: 1-3 screws depending on the procedure
Plates
Titanium plates bridge across the corrected bone cut or fused joint, providing stability.
- Locking plates: Screws lock into the plate — most stable configuration
- Used primarily in: Lapiplasty/Lapidus procedures where TMT joint fusion requires maximum stability
- Placement: Usually on the top or side of the metatarsal
K-Wires (Kirschner Wires)
Thin metal pins used temporarily to hold alignment, especially for hammertoe corrections done alongside bunion surgery.
- Extend outside the skin and are visible during healing
- Removed in-office at 3-6 weeks with minimal discomfort
- Less stable than screws but simpler to place and remove
Absorbable Implants
Some newer procedures use bioabsorbable screws or pins that dissolve over 12-24 months as the bone heals. Benefits include no permanent hardware, no removal needed. However, they provide less compression force than metal.
Does Hardware Need to Be Removed?
In most cases, no. Titanium is biocompatible and designed to stay permanently. However, removal may be recommended if:
- You can feel the hardware through thin foot skin (screw head prominence) — most common reason
- Hardware irritation causes pain in shoes
- Infection develops around the implant
- Hardware breaks or loosens before the bone fully heals
- You need an MRI of the foot and metal creates artifact (rare with titanium)
Hardware removal rates: approximately 5-15% of patients eventually have some or all hardware removed.
What Hardware Feels Like
- Most patients cannot feel the hardware at all once swelling resolves
- Plates on the top of the foot are sometimes palpable — especially in thin-skinned patients
- Cold weather can make hardware feel more noticeable due to thermal conductivity of metal
- Airport metal detectors: titanium implants usually do not set off standard metal detectors
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Living with Permanent Hardware
- There are no activity restrictions due to permanent hardware once fully healed
- MRI scans are safe with titanium (but inform the technician)
- Annual X-rays allow monitoring of hardware position and bone healing
- Wearing a supportive bunion sleeve can reduce any sensation of hardware by adding cushioning
Hardware Removal: What to Expect
If removal is needed, it's typically a 30-minute outpatient procedure under local anesthesia:
- Small incision over the hardware
- Screws/plates are unscrewed and removed
- Recovery is 2-4 weeks for the soft tissue to heal
- Weight-bearing is usually allowed immediately
Your bunion hardware is your bone's scaffold during the most critical healing period. Once the bone has fused or healed, the hardware becomes simply a silent passenger in your foot — one most patients completely forget about.