Excellent Pain Relief, Slow Strength, and Why Month 3 Feels Like a Mistake
A trapeziectomy removes the small wrist bone that sits at the base of your thumb, the trapezium. Take the arthritic bone out, and the grinding surfaces that were causing the pain simply aren’t there anymore.
Yes, they remove a bone.
Yes, it works.
It’s one of the most reliably pain-relieving operations in the hand.
But here’s the trade, stated plainly up front: you’re buying pain relief, not strength. Pinch strength comes back slowly over 6 to 12 months, and for some people it settles slightly below where it was.
Most people who’ve had months of aching at the thumb base take that deal without hesitating. But you should know it’s the deal before, not at month 3 when you’re panicking.
What actually got done in there
So our thumb base joint is a saddle joint…it’s what lets your thumb swing across the palm and oppose your fingers.
Really brilliant design (thank you God), and the price of that mobility is that it wears out, which is what thumb base arthritis is.
Remove the trapezium and you leave a gap.
That gap fills with blood, then scar, and that fibrous tissue becomes a surprisingly serviceable cushion. The thumb sits slightly shorter and slightly less rigidly anchored, and moves on that new soft interface.
Some surgeons add a suspension, using a slip of tendon to sling the thumb metacarpal and stop it sinking too far. Some don’t. The long-term results between those approaches are much closer than the debate suggests, so if your surgeon didn’t do the extra step, that isn’t a shortcut.
(Also on the menu for this joint: fusion, which trades movement for strength and suits heavy manual workers, and joint replacement, which recovers faster but has more to go wrong later. Different trades, same joint.)
The month 3 problem
This is the single most common reason someone books in with me convinced their surgery has failed.
Three months post-op, the pain is much better, but the thumb feels weak, floppy and useless. Buttons are hard to press. Jars are impossible to turn open…or turn to close tight. A key is a struggle to lock or unlock a door.
And measured pinch strength is often LOWER than it was before the operation.
That’s not failure.
That’s the expected shape of this recovery.
The thumb was immobilized for weeks. The muscles that stabilize it have wasted. The new scar interface hasn’t matured or toughened. Strength genuinely does dip below baseline before it climbs above it, and the climbing part is the second half of the year.
Pain relief arrives in months. Strength arrives in seasons.
What recovery actually looks like
- Weeks 0 to 4: cast or a thumb splint holding the thumb in position. The fingertips and the wrist beyond it stay moving daily…people lose more function to a stiff hand around a healing thumb than to the thumb itself.
- Weeks 4 to 6: splint switched to a removable one, gentle thumb movement begins. Scar work starts. Everything feels alarmingly loose. Normal.
- Weeks 6 to 12: splint weaned through the day, light functional use resumes. Strengthening starts CAUTIOUSLY here, and pushing hard now doesn’t speed anything up.
- Months 3 to 6: the turn. Pinch and grip start climbing meaningfully. Most everyday tasks come back in this window. Aching after heavy days is still common.
- Months 6 to 12: the real result. This is where you judge the operation, not before. Pain typically well settled, strength near or at pre-op levels, sometimes better because you can finally use it.
Things that are normal along the way: a shorter-looking thumb, a slightly reduced ability to flatten the hand completely, tenderness over the scar for months, and aching in cold weather that fades over the first year.
When to make the call
- Wound redness spreading, heat, discharge or fever: infection, same day.
- New numbness or burning down the back of the thumb: a small sensory nerve crosses that area and can get irritated by scar. Treatable, but tell someone.
- Pain escalating rather than settling after the first fortnight, with a shiny, swollen, colour-changed, exquisitely sensitive hand: needs assessing quickly.
- Fingers or wrist that have gone stiff while the thumb was protected: fixable, and much more fixable at week 6 than at month 6.
The short version
Splint or cast for 4 to 6 weeks. Movement from week 4 to 6. Light use by week 8 to 12. Strength climbing from month 3. The honest verdict on the operation sits at month 9 to 12, not month 3.
A weak thumb at 3 months is the middle of the story, not the end of it. Judge it in a year.
Written by Nigel Chua, hand occupational therapist in practice since 2005. Tens of thousands of hands, wrists and elbows assessed and treated. My credentials are here. This article explains; it doesn’t examine. Follow your own surgeon’s protocol where it differs from anything here.