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2022 Jan 17;23(1):54. doi: 10.1186/s12891-021-04983-2. The cuboid, which articulates with the fourth and fifth metatarsals, is much more mobile. The latter can be more effective in detecting smaller fractures, especially avulsion fractures, in which a small piece of bone and the attached ligament break off. Tarsometatarsal joint dislocations should be coded using the 28600-28615 range. uuid:012e2f35-afb4-114a-9c91-eb3108d190d5 2016;29(4):60-67. For instance 28615 (Open treatment of tarsometatarsal joint dislocation with or without internal or external fixation) does not refer to "dislocation(s) " as is often the case when CPT means to imply that a code applies to one or more dislocations. dorsal ligaments are weaker and therefore bony displacement with injury is often dorsal, no direct ligamentous attachment between first and second metatarsal, Lisfranc joint complex is inherently stable with little motion due to, second metatarsal fits in mortise created by medial cuneiform and recessed middle cuneiform, "keystone configuration", Partial injury, medial column dislocation, Partial injury, lateral column dislocation, history of high energy trauma or sporting accident, grasp metatarsal heads and apply dorsal force to forefoot while other hand palpates the TMT joints, if first and second metatarsals can be displaced medially and laterally, global instability is present and surgery is required, when plantar ligaments are intact, dorsal subluxation does not occur with stress exam and injury may be treated nonoperatively, may reproduce pain with pronation and abduction of forefoot, five critical radiographic signs that indicate presence of midfoot instability, discontinuity of a line drawn from the medial base of the 2nd metatarsal to the medial side of the middle cuneiform, widening of the interval between the 1st and 2nd ray, represents avulsion of Lisfranc ligament from base of 2nd metatarsal, dorsal displacement of the proximal base of the 1st or 2nd metatarsal, medial side of the base of the 4th metatarsal does not line up with medial side of cuboid, useful for preoperative planning in the setting of comminuted bony injuries, can be used to confirm presence of purely ligamentous injury, certain non-displaced injuries that are stable with weight bearing, significantly lower functional and radiographic outcomes noted with non-operative management of displaced or transverse unstable injuries, displaced Lisfranc fracture dislocation injury with.