3-Point Products' Blog

As hand therapists, we know trigger finger is a common hand issue that occurs with the locking or triggering of a finger, pain in the middle joint, and tenderness with palpation at the base of the finger. Trigger Finger commonly occurs between the ages of 55 and 60 years old and is said to occur 2-6 times more frequently in women than in men.

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While most are familiar with management of the symptoms of trigger finger employing or using surgery and injection, what about the use of a splint for treatment?

There are a variety of wrist injuries that can occur from a traumatic fall on an outstretched hand. These injuries are termed FOOSH (fall on an outstretched hand) injuries. Probably the most well-known FOOSH is a distal radius fracture, which is identified and treated first by a physician. As a health care professional, you may be seeing an increase in referrals for wrist pain from falls this time of year, now may be a good time to review the clinical signs used to find other FOOSH injuries.

The term Gamekeeper’s Thumb is used when referring to an ulnar collateral injury caused by repetitive stress on the thumb during such activities as using a wrench, twisting electrical cords or wringing out heavy cloths. The term Skier’s Thumb is commonly used when there is an acute, forceful abduction of the thumb as when a skier falls without letting go of the ski pole. The injury may also be the result of falling on an outstretched thumb or catching a ball with an outstretched thumb.

Anatomy of the Wrist

The carpal bones of the wrist make 2 rows of bones, the proximal and distal carpal row. Midcarpal instability (MCI) is related to lack of ligament support between the proximal carpal row and the midcarpal joint (between the 2 rows of bones). Midcarpal instability is most often of palmar type, but can also be considered dorsal or extrinsic depending on the specific ligament(s) involved in causing the instability.

The primary cause of Ulnar Deviation of the Metacarpal Phalangeal joints (MP) of the fingers, a chronic, irreversible condition, is Rheumatoid Arthritis (RA). The MP joints are a primary site of rheumatoid deformities due to several anatomical and bio mechanical factors. Chief among the factors are:

• The shape of the metacarpal head allows for a certain degree of motion in an ulnar direction which contributes to the hands ability to create a strong grip

Causes of Deformity in the Rheumatoid Thumb 

Rheumatoid arthritis (RA) is a destructive inflammatory disease that impacts soft tissue. This disease commonly involves the thumb and causes deformities to the thumb through tendon rupture or tendon subluxation and the abnormal stretching of ligaments and other joint structures.

It’s no secret that Oval-8 Finger Splints are the preferred finger orthosis to treat your patient’s mallet finger, swan neck and boutonniere deformities, trigger finger and trigger thumb, lateral deviation, fractures, arthritis, and hypermobility (EDS).

We are excited to announce improvements to the Oval-8 that make it easier on your eyes and even more comfortable on your patient’s fingers!

The Triangular Fibrocartilage Complex (TFCC) is a group of ligaments and cartilage on the ulnar side of the hand. The TFCC ligaments attach the cartilage to the small wrist bones which also suspend the ends of the two forearm bones, the ulna and the radius.

The distal interphalangeal (DIP) joint is actually the most common location on the body for osteoarthritis (OA). In fact, according to a study evaluating the frequency of hand arthritis, OA at the DIP joint occurs in approximately 58% of individuals age 60 years and older.

Family history, age, a history of heavy manual labor, joint laxity, smoking, and increased weight are all identified as contributors to this disease.The symptoms of OA at the DIP joint commonly include pain and changes to the size and shape of the joint.

What is it and What Are the Characteristics?

Ehlers-Danlos Syndrome (EDS) is a collection of connective tissue disorders, of which the hypermobile type is the most common. Individuals with Hypermobile EDS classically present with hyperextensible joints and skin.

They can often extend their fingers back greater than 90 degrees, place the thumb on the volar forearm, hyperextend the knees and elbows greater than 10 degrees, and place their palms flat on the floor with the knees fully extended.