Posterior tibial tendon dysfunction is one of several terms to describe a painful, progressive flatfoot deformity in adults. Other terms include posterior tibial tendon insufficiency and adult acquired flatfoot. The term adult acquired flatfoot is more appropriate because it allows a broader recognition of causative factors, not only limited to the posterior tibial tendon, an event where the posterior tibial tendon looses strength and function. The adult acquired flatfoot is a progressive, symptomatic (painful) deformity resulting from gradual stretch (attenuation) of the tibialis posterior tendon as well as the ligaments that support the arch of the foot.
Flatfoot can have many different causes. It could be a weakness or a structural abnormality you?ve had since birth. It could also mean that tendonitis, damage to the connective tissues, arthritis, or nerve problems have affected the structures in your feet. Even wearing unsupportive footwear can lead to weakness and arch pain. Whatever the cause, many conservative, noninvasive treatments exist to help relieve and eliminate your discomfort.
Go to a podiatrist at the first sign of symptoms. Besides pain on the bottom of the foot, additional symptoms may include. Burning sensation in arch. Difficulty standing on tiptoes. Inflammation. More pain after sleeping or resting. Redness. Heat. Localized pain in the ball of the foot. Sharp or shooting pain in the toes. Pain that increases when toes are flexed. Tingling or numbness in the toes. Aching. Pain that increases when walking barefoot. Pain that increases when walking on hard surfaces. Pain the increases when standing (putting weight on your feet) or moving around and decreases when immobile. Skin Lesions. It?s important to get a proper diagnosis and treatment plan. Let?s go over the possible causes of the pain.
The doctor will examine your feet for foot flexibility and range of motion and feel for any tenderness or bony abnormalities. Depending on the results of this physical examination, foot X-rays may be recommended. X-rays are always performed in a young child with rigid flatfeet and in an adult with acquired flatfeet due to trauma.
Non Surgical Treatment
Initial treatment of the tear will focus on symptom relief. This may involve the use of anti-inflammatory medications, strapping of the toe, off-loading padding, altered footwear and activity modification. Following this treatment will focus on the underlying causes of the problem, such as flat feet, bunions and hammer toes. Your podiatrist will perform a thorough biomechanical assessment to determine the best course of action to offload the forefoot and decrease the mechanical stress on the area. This injury usually occurs gradually and is best treated in the early stages. Often a customised soft full length orthotic and footwear modifications can prevent the problem from progressing. Occasionally surgery needs to be performed, either frank repair of the plantar plate or in chronic cases a resection osteotomy may be suggested.
Patients with adult acquired flatfoot are advised to discuss thoroughly the benefits vs. risks of all surgical options. Most procedures have long-term recovery mandating that the correct procedure be utilized to give the best long-term benefit. Most flatfoot surgical procedures require six to twelve weeks of cast immobilization. Joint fusion procedures require eight weeks of non-weightbearing on the operated foot, meaning you will be on crutches for two months. The bottom line is: Make sure all of your non-surgical options have been covered before considering surgery. Your primary goals with any treatment are to eliminate pain and improve mobility. In many cases, with the properly designed foot orthosis or ankle brace, these goals can be achieved without surgical intervention.
The best method for preventing plantar fasciitis is stretching. The plantar fascia can be stretched by grabbing the toes, pulling the foot upward and holding for 15 seconds. To stretch the calf muscles, place hands on a wall and drop affected leg back into a lunge step while keeping the heel of the back leg down. Keep the back knee straight for one stretch and then bend the knee slightly to stretch a deeper muscle in the calf. Hold stretch for 15 seconds and repeat three times.
Gastroc stretch. Stand on the edge of a step. Rise slowly on your toes. Lower yourself slowly as far as you can until you feel a stretch in your calf. Don?t roll your foot inward or outward. Hold for 1-2 seconds. Reps:10-20 (stop before you fatigue). Soleus stretch. Same as above, but start with your knee bent so that you feel a slight stretch in your calf or achilles. Maintain the angle of your knee throughout the stretch. Bicycle stretch. Lie on your side. Keeping your top leg straight, bring your knee toward your nose until you feel a slight stretch in the hamstring. Maintaining this angle at your hip, start pretending you are pedalling a bicycle with the top leg. Make sure you feel a slight stretch each time your knee is straight. Reps: 10-30 for each leg. If you feel any pops or clicks in your hip or back, try raising the top leg a little (making the thighs further apart) to eliminate the popping. Foot Intrinsic Exercises. Assisted metatarsal head raising. Sit in a chair. Find the bumps at the ball of your foot just before your big toe and just before the little toe. These are the first (big toe) and fifth (little toe) metatarsal heads. Place your second and third fingers from one hand under the first metatarsal head, and the second and third fingers from the other hand under the fifth metatarsal head. Now lay the thumbs from each hand in a diagonal across your toes so that they form a right angle meeting at the nail of the second toe. Your hands are now in position to assist your toes. Keep your toes straight, with the toe pads on the floor. Use your fingers to help raise all the metatarsal heads (the ball of your foot). Do not let your toes curl under keep them long. Now relax. Reps 7-10 for each foot. As this exercise gets easier, let your fingers do less of the work until your toes can do the exercise unassisted. This can take up to three weeks. When your strength has improved to this point, you can progress to the following three exercises, which are best done in stocking feet on a slippery floor. Active metatarsal head raising. Stand with your weight on both feet. Raise your metatarsal heads (the ball of your foot) while keeping your toes from curling under and maintaining your heel on the ground. Relax. Reps 6-7. Do one foot at a time. If you do more reps than you are ready for, you may well develop cramping in your foot. I once had a client who thought if seven reps were good, 10 were better. For good measure, she did the 10 reps 10 times in a day, and then she was unable to walk the next day from having used a set of muscles she had never exercised before. Don?t overdo it.