The functional forefoot orthotic of this invention comprises a shell plate that is conformed to the sole of the foot replica, a forefoot posting shim is applied to the upper surface of the shell plate. A stabilizing heel platform may also be applied to the bottom of the shell plate. The forefoot posting shim is applied at the level of the first to third metatarsals for a varum prescription. The shape, size and thickness of the posting shim is determined by the prescription. The forefoot posting shim will have a width that will be determined by the degree of deformity in the patient's forefoot. It will be wide enough to support at least the first metatarsal and may be wide enough to support two or all three of the first-to-third metatarsals. The forefoot posting shim will accommodate the patient's varum forefoot deformity so as to provide, in combination with the shell plate replica of the patient's foot, a stable forefoot platform for the patient's foot.
A custom orthotic sandal is formed to a biomechanically corrected shape of a user. To obtain the proper shape for the sandal, a negative cast is taken of the user's foot. A positive impression cast is then formed from the negative cast. The positive impression cast is then modified to correct for biomechanical abnormalities of the user's foot. The custom orthotic sandal is formed by adhering a moldable material on the sole of the sandal. The positive impression cast is then pressed on the moldable material to form the proper shape. The moldable material is then set and the sole is assembled into the sandal.
A forefoot support system 60 for supporting a hyperpronating forefoot 20 both dynamically while the forefoot 20 is in motion and statically is disclosed. The forefoot support system 60 is a bed upon which the forefoot 20 rests which includes an inner edge 62 and an outer edge 64. The forefoot support system 60 is positioned underneath the medial column of forefoot 20. The forefoot support system 60 laterally decreases in thickness from the inner edge 62 to the outer edge 64. The inner edge 62 is positioned along the medial side of the forefoot 20, and the outer edge 64 is positioned longitudinally in a zone substantially between a lateral margin of the hallux 48, the proximal phalanx 46, and the first metatarsal 36 and a medial margin of the phalanges 47 of the second toe and the second metatarsal 38.
A foot support system 60 for supporting a hyperpronating foot 20 both dynamically while the foot 20 is in motion and statically is disclosed. The foot support system 60 is a bed upon which the foot 20 rests which includes an inner edge 62 and an outer edge 64. The foot support system 60 is positioned underneath the medial column of the forefoot of foot 20. The foot support system 60 laterally decreases in thickness from the inner edge 62 to the outer edge 64. The inner edge 62 is positioned along the medial side of the foot 20, and the outer edge 64 is positioned longitudinally in a zone adjacent to a lateral margin of the hallux 48, the proximal phalanx 46, and the first metatarsal 36 and a medial margin of the phalanges 47 of the second toe and the second metatarsal 38.
A foot support system (60) for supporting a hyperpronating foot (20) both dynamically while the foot (20) is in motion and statically is disclosed. The foot support system (60) is a bed upon which the foot (20) rests which includes an inner edge (62) and an outer edge (64). The foot support system (60) is positioned underneath the medial column of the forefoot of foot (20). The foot support system (60) laterally decreases in thickness from the inner edge (62) to the outer edge (64). The inner edge (62) is positioned along the medial side of the foot (20), and the outer edge (64) is positioned longitudinally in a zone adjacent to a lateral margin of the hallux (48), the proximal phalanx (46), and the first metatarsal (36) and a medial margin of the phalanges (47) of the second toe and the second metatarsal (38).
An insole construction for an athletic shoe has a shell portion that is positioned under the heel and midfoot of the foot, and is covered with an insole and having low friction material on the upper sides in selected regions. The low friction material may be a thin layer of polytetrafluoroethylene material, the low friction material extends across the heel region, and/or across the metatarsal area, and these areas may be joined by a lateral side strip. The shell is cupped to form a wall along the lateral side of the foot and about three quarters of the way behind the heel or calcaneus region of the foot. This cup wall is joined to a base wall with a generously radiused rounded portion that mirrors the concave/convex contour anatomy of the foot in this region for comfort and for distributing impact forces received during running, across a substantially increased contact area of the foot.
