Distal Radius Fracture With Median Nerve Symptoms in an Anticoagulated Elderly Patient
A 72-year-old woman who lives alone falls onto her outstretched right wrist. She has osteoporosis and atrial fibrillation and takes apixaban. Radiographs show an extra-articular distal radius fracture with 20 degrees of dorsal angulation, 3 mm of radial shortening, and neutral ulnar variance; the radiocarpal joint is congruent. She reports numbness in the thumb, index, and long fingers that began after the fall, and two-point discrimination is 8 mm in the index finger. She is independent for self-care but does not drive. The emergency physician asks whether she needs surgery or a cast, and whether the apixaban should be reversed.
1. Outline your initial management, including reduction, immobilization, and anticoagulation considerations.
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I would treat this as a fracture with associated median nerve irritation in a low-demand elderly patient. Closed reduction under a hematoma block with finger-trap traction can improve dorsal tilt and shortening, followed by a well-molded short-arm cast or a removable splint. I would not routinely reverse apixaban for a closed reduction; reversal increases thrombotic risk in atrial fibrillation. For urgent surgery, apixaban would be held according to its half-life and renal function, with bridging decided by cardiology. Because she lives alone, I would arrange early follow-up and social support rather than assuming she can manage a cast independently. The median nerve symptoms do not by themselves mandate immediate carpal tunnel release, but they require serial examination, because progressive deficit after reduction is an indication for decompression. I would document baseline sensation and motor function and check the cast for tightness.
2. What findings would push you toward operative fixation, and how do you monitor for loss of reduction?
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Operative fixation becomes preferable if the fracture loses reduction during cast treatment, if dorsal angulation increases beyond what a low-demand patient can tolerate, if there is progressive radial shortening or radiocarpal subluxation, or if the median nerve deficit worsens. Other relative indications include insufficient reduction, severe comminution, and inability to maintain a functional wrist position. In an elderly low-demand patient, mild residual dorsal tilt can be compatible with acceptable function, so the decision is not based on radiographic numbers alone. I would obtain radiographs at approximately 1 week, 2 weeks, and 4 weeks, and after any change in symptoms. I would teach the patient to report increasing pain, finger numbness, or cast tightness. If loss of reduction occurs, I would consider closed remanipulation and pinning or volar plate fixation depending on bone quality and anesthetic risk.
3. How do you manage the median nerve symptoms, and what is the expected prognosis?
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Median nerve paresthesias are common after distal radius fractures and often improve once the fracture is reduced and the cast is not tight. I would avoid a flexed wrist position that increases carpal tunnel pressure, elevate the limb, and reassess sensation and thenar motor function frequently. If symptoms are severe or progressive, or if there is new thenar weakness, I would proceed with carpal tunnel release, either alone or at the time of fracture fixation. I would not perform a prophylactic carpal tunnel release for mild stable symptoms. Prognosis is generally good for sensory symptoms that are position-related and resolve within days to weeks; persistent severe numbness, thenar wasting, or pain out of proportion raises concern for nerve compression or complex regional pain syndrome. I would document two-point discrimination and monofilament testing at each visit.