Greetings all,
Please forgive me in advance for the lengthy post
The meaning of "Equinus" in relation to the foot is, any restriction which limits dorsiflexion at the ankle joint. When the posterior lower leg muscles are tight, the leg cannot pass over the ankle during the stance phase of gait.
There are several ways that the body compensates for this. One way is to ABduct the foot, which creates an increased demand for pronation. Another way is compensated dorsiflexion at a joint distal to the ankle joint which operates in the same plane of motion. Sagital. Being that the STJ primarily operates in the frontal plane, the next joint which is ready to compensate in the sagital plane is the MTJ, right above the arch.
I agree with the orthotic therapy, especially if the patient has gotten good results with arch taping or OTC insoles. However, if you put a corrective device underneath a joint that will chronically collapse over it because of an external force, the pt will not tolerate this device very well, especially if it's a hard device. Even if the pt does tolerate it, it's not treating the cause of the problem. Equinus contracture/pronation is a vicious cycle. The foot is pronated, the achilles tendon has a "Bowstring effect," and becomes tighter, and so on. Plantar Fasciitis is just one of the symptoms.
My advice, see if you can medially support your pt's foot with tape or wedges, and/or scaphoid support. This might give you an indication if orthotics, whether custom or OTC, will help. I have found night splints work very well. It is best to wedge the pt's foot medially within the splint to invert the STJ to insure no dorsiflexion of the distal joints. Not doing this is the main reason that DF night splints don't work. When you pronate the STJ even slightly, you increase the ROM of the distal joints of the foot, stretching the foot, not the calves. I would be interested in hearing your experience with night splints and I wonder if your troubles with them could have been related to this.
You should think about the limited amount of time your pts are actually stretching with you or on their own, VS. the amount of time they are not stretching at all. Sleeping for 8 hours with your feet in plantar flexion works wonders in tightening the calf muscles. This is why heel pain is usually worse first step in the morning.
Also, her shoes are very important. Check wear patterns to insure lateral heel strike. Make sure this pt is not overpowering the shoe medially. Rear counter of shoe should be strong and vertical. A inner heel lift of 1/8" Bilaterally couldn't hurt either.
Watching this pt walk could be quite helpful. Usually more so with pts who have unilateral symptoms, however.
About the Forefoot varus. If this forefoot/rearfoot relationship is structural, the forefoot needs a medial wedge to support it in that position and effectively "bring the ground up to meet the foot." If the foot doesn't get that, a structural forefoot varus in contact with the ground will create a marked rearfoot valgus during the stance phase of gait. If the forefoot varus is only a functional position, then a rearfoot medial wedge is recommended.
In my practice in NYC, I make orthotics and do inner and outer shoe modifications for pts of doctors and PT practitioners like yourselves. I also make wedges and cookies for arches and heels, and all types of on-the-spot diagnostic tools. I would be happy to make some for any of you. I very much enjoy this forum and I scan it for foot topics. This is the first one I have seen in almost a year.
Please feel free to contact me at
OrthoSolutionsNY@aol.com
Regards,
Spencer B. Weisbond, C.Ped.