Causes and Mechanism of Injury
The mechanism of injury is usually very characteristic. In the vast majority of cases, a wrist sprain is caused by a specific mechanism known in medicine as FOOSH (Fall On OutStretched Hand).
As a person loses their balance, the natural protective reflex is to extend the hands forward to cushion the impact with the ground. Upon impact, the wrist is violently forced into hyperextension, meaning it bends forcefully backward, while the weight of the entire body “crushes” the joint. This excessive and sudden force causes the stretching or tearing of the ligaments.
Additional causes include:
- Sports Activities: Wrist sprains are the “scourge” of sports. They are extremely common in football, basketball, gymnastics, but especially in high-speed and impact sports such as snowboarding, skateboarding, rollerblading, and skiing. In these sports, the wrist is the first point to strike the ground or ice.
- Accidents in Daily Life: Slipping on a wet floor, on ice during the winter months, or a misstep on the stairs.
- Sudden and Violent Rotational Movement (Twisting): When the hand gets trapped in a machine or experiences a violent twist (e.g., in wrestling or martial arts).
- Occupational Injuries: In heavy manual labor professions where heavy vibrating tools are used.
Symptoms of a wrist sprain
The clinical presentation of a wrist sprain is usually loud, although the intensity of the symptoms varies depending on the grade of the injury (I, II, III).
A wrist sprain is often immediately noticeable due to swelling and extremely painful, especially with the slightest movement. The main symptoms include:
- Acute Pain: Appears instantaneously at the moment of injury. The pain intensifies dramatically when the patient attempts to bend the wrist, twist the palm, or bear weight on the hand (e.g., trying to push up from a chair).
- Edema (Swelling): The wrist swells immediately. The swelling is caused by internal bleeding and the inflammatory response of the tissues surrounding the injured ligament.
- Bruising (Ecchymosis): Blood from ruptured small vessels travels beneath the skin, creating bruises (hematomas) that may extend toward the fingers or forearm. Striking bruises can remain even several days after the injury.
- Reduced Range of Motion and Weakness: The joint becomes stiff. The patient notices that their grip strength has decreased dramatically, making it impossible to clench a fist or hold an object.
- A Sensation of “Clicking” or Popping: Sometimes, especially in severe ruptures (such as the scapholunate), the patient can feel or hear a characteristic “pop” sound or a jarring click (clunk) inside the joint when moving it. This is a strong indication of mechanical instability.
- Duration of Symptoms: Pain and swelling can develop rapidly over several days and, depending on severity, can last from a few days up to six weeks (or even months if treatment is ignored).
Diagnosis: Why is it the most critical stage?
The biggest mistake patients make is assuming that since they can move their fingers, “it’s nothing serious, just a simple sprain.” Unfortunately, severe wrist sprains (with complete ruptures) often “masquerade” as mild in the initial stages, leading to delayed medical intervention.
Mr. Polyzois, as a specialized orthopedist, will see you at his clinic, take a detailed history of exactly how the fall occurred, and carefully examine your wrist to check how it moves. Through specialized clinical provocative pain and stability tests (such as the Watson shift test for evaluating the scapholunate ligament), he will pinpoint the areas of tenderness.
Next, he will necessarily refer you for specific X-rays. The purpose of the examination and plain X-rays is to ensure there are no broken bones (fractures, such as the insidious scaphoid fracture or a fracture of the distal radius), dislocated joints, or signs of complete ligament rupture (since an X-ray can show if the gap between bones has widened abnormally).
However, plain X-rays depict only the bones and not the ligaments or cartilage. In certain cases, if a wrist sprain does not improve after an initial period of rest and absence from activities, or if the pain persists beyond 2-3 weeks, Mr. Polyzois will proceed with additional high-definition imaging. This is usually a magnetic resonance imaging (MRI) scan, with or without intra-articular contrast material (MR Arthrogram). In this manner, he will determine with absolute millimeter accuracy whether there are tears in the ligaments or the triangular fibrocartilage (TFCC) that do not show up on plain X-rays but for which there was strong clinical suspicion during the physical examination. Diagnostic ultrasound is also frequently used for dynamic examination of superficial structures.
Treatment of a wrist sprain
The therapeutic approach is entirely personalized and depends on the grade of the sprain (I, II, III), the patient’s age, the demands of their daily routine (e.g., if they are an athlete or manual laborer), and how promptly they sought medical attention.
Conservative Management (The First Line)
A mild to moderate wrist sprain (Grade I and II) is usually successfully managed without surgery. Treatment is based on the internationally recognized R.I.C.E. protocol (Rest, Ice, Compression, Elevation):
- Rest: Treatment usually involves strict rest of the injured wrist for the first few days. Avoid lifting weights, rotational movements, and sports activities.
- Ice: Ice is extremely useful for the first few days (48-72 hours). Applying ice for 15-20 minutes, 3-4 times a day, causes vasoconstriction and dramatically limits edema and pain. Caution: Ice must never come into direct contact with the skin, but should be wrapped in a towel.
- Compression & Splint: The use of an immobilization splint or elastic bandage is perhaps the most important step. The splint keeps the wrist in a neutral, safe position, protecting the delicate, injured ligaments from further stretching and allowing them to “knit” and heal. A splint is used as needed until symptoms improve, which can range from a few days up to 6 weeks.
- Elevation: Keeping the hand elevated (above the level of the heart, perhaps with the help of a pillow when sitting or sleeping) helps gravity drain inflammatory fluids and reduce swelling.
- Medication: Non-steroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen, may be recommended by the doctor to control pain and internal inflammation.
Surgical Treatment (When things are serious)
If the diagnosis reveals a complete ligament rupture (Grade III), chronic mechanical instability, or if conservative treatment does not yield results after several months and the patient remains with severe pain and weakness, then surgical treatment is the absolutely correct and imperative choice to save the joint from premature arthritis.
Today, wrist surgery has technologically evolved to a massive degree. Surgical treatment can be performed arthroscopically or through a small, minimally invasive incision (MIS).
Wrist Arthroscopy: Mr. Polyzois utilizes a very small camera (an arthroscope – with a thickness often below 2 mm) and other specialized, microscopic instruments which are placed inside the wrist. This allows the doctor to confirm the diagnosis by viewing the interior of the joint in massive magnification on a 4K screen and, simultaneously, to address (clean, suture, or anchor) the ligament damage. Wrist arthroscopy is performed through 2-3 very small 4 mm portals in the skin, offering minimal trauma to the muscles and an excellent aesthetic result (without large scars).
Open Surgery and Reconstruction: Some injuries – particularly when they are old, complex, or have created significant instability – require open surgery. Through a careful incision, with a maximum size of about 5 cm, the anatomical reconstruction of the ligament (e.g., the scapholunate) is performed. This can be achieved with direct suturing (if it is an acute injury) or with the use of a graft (from another tendon of the hand), depending on whether it is a chronic injury and, of course, in direct relation to the quality of the local tissues.
There is a wide variety of methods for restoring ligamentous stability, which include the use of modern and specialized biotechnology materials, such as tiny titanium anchors or bioabsorbable materials that integrate into the bone.
The Surgical Experience:
In general, these modern procedures are exceptionally fast, lasting on average 30 to 60 minutes, and the patient is discharged from the hospital a few hours later (Day Clinic), without needing an overnight stay.
These surgeries are bloodless and painless. In many cases (thanks to modern regional anesthesia techniques or WALANT), the patient can remain awake during the surgery, if they so wish, avoiding the side effects of general anesthesia. Postoperatively, the wrist is placed in a splint for a few days to weeks (depending on whether the ligament was repaired).
Physical Therapy: The key to success
Regardless of whether the treatment was conservative or surgical, rehabilitation is not complete without physical therapy. In the course of treatment, the patient follows an individualized and strictly systematic physical therapy protocol.
Physical therapy focuses on:
- Regaining full range of motion (so the joint does not “freeze”).
- Muscle strengthening of the forearm and hand grip, which quickly atrophies after injury.
- Proprioception (the body’s ability to perceive the joint’s position in space), which is vital for preventing future sprains.
Rehabilitation is rapid, safe, and complete after proper physical therapy.
Related Injuries (Avulsion Fractures)
Many times, a sprain does not come alone. Sometimes, the force of the fall is so great that the ligament proves to be stronger than the bone itself. In these cases, instead of the ligament tearing, it “uproots” (avulses) a small piece of bone from the wrist bones to which it attaches.
These are called avulsion fractures. Despite the term “fracture,” which often frightens patients, these small bony fragments frequently do not require surgical intervention and can heal on their own, just as well as a simple sprain, with the proper application of an immobilization splint.