Current Pedorthics | March-April 2019 | Vol.51, Issue 2 | Page 65

"Due to severity of joint destruction at this stage [3], surgical solutions may become an attractive choice." to attempt to allow for full ROM at the first MTPJ. Shoegear for this patient would include a shoe with a high toe box, which will also prevent direct contact between the dorsal osteophyte and the shoe and a stiff, commercial rocker-style sole, particularly if the first ray cutout increases pain at the joint. motion and be substituted for adding a rigid shank to the shoe [13] . This rigid beam decreases the motion available at the arthritic hallux joint and reduces the pain that is experienced with motion. This orthotic modification can allow the patient to ambulate comfortably without pain or compensation. Stage 2: Stage 3: In stage two there is a more dramatic loss in dorsiflexion at the first MTPJ (10° to 30° of dorsiflexion remaining), which can make ambulation both difficult and painful. Radiographically, we again see dorsal osteophytes. However, they will be more extensive than in stage one, and there will be a further decrease in joint space. While this stage still represents a structural hallux limitus, the severity of joint destruction at this point in the progression of the disorder necessitates a different approach to treatment than the previous stages. Instead of attempting to increase motion, which would continue to cause the patient pain, we would like to limit the remaining motion available at the joint. The goal of this intervention is to control pain. In order to do this, we recommend implementing a neutral position orthotic device with a rigid shank shoe and a rocker sole. A modification of the Morton’s extension used in structurally-elevated first metatarsals can be incorporated into the orthotic. A rigid continuation of the medial shell of the orthotic that extends to the distal hallux can restrict In stage three, nearly all motion in the first MTPJ has been lost (less than 10° of dorsiflexion remaining), and movement of the joint to end range causes the patient significant pain. Joint space narrowing is substantial, and the sesamoids may be affected. This stage would correspond to a hallux rigidus, by definition. The most effective conservative treatment at this point is to reduce all motion at the osteoarthritic joint and completely immobilize the first MTPJ. This can be accomplished with a rigid-shank shoe with a custom-made rocker sole to match the patient’s angle and speed of ambulation. The apex of the rocker sole should be just proximal to the metatarsal heads in order to mimic the normal characteristics of the foot’s movement. Depending on the stride length, the angle of the rocker may require the addition of a thicker sole on both shoes. Even if pathology is only on one side, it is often helpful to add rockers to both shoes to even out the patient’s gait and prevent symptoms from developing on the asymptomatic side. Due to severity of joint destruction at this stage, surgical solutions may become an attractive choice. Current Pedorthics | March/April 2019 63