first metatarsophalangeal joint

first metatarsophalangeal joint

; 1 MTPJ synovial joint at the articulation of the base of proximal phalanx, head of first metatarsal, plantar aspect of head of first metatarsal and hallucal sesamoids (embedded within tendon of flexor hallucis brevis muscle); ginglymoarthrodial joint allowing both sagittal-plane hinge movement (dorsiflexion/plantarflexion) of hallux toward the dorsum of first metatarsal head, and gliding sagittal-plane movement as first metatarsal head moves through an arc in a plantarwards direction; combined ginglymoarthrodial 1 MTPJ movement ensures that, immediately before toe off, the pulp of the hallux is in ground contact and the first metatarsal is at almost 90° to the horizontal plane (see Table 1)
Table 1: Features of the neutral or reference position of the joints of the foot and lower limb
JointCharacteristics at neutralAvailable motion
HipThe legs are in line with the trunk, parallel to one another and in the sagittal plane
The femoral condyles lie in the frontal plane
Flexion/extension
Adduction/abduction
Internal/external rotation
KneeKnee joint fully extended
Thigh and lower leg in line in sagittal and frontal planes
Flexion
AnklePlantar aspect of the foot on the horizontal plane/weight-bearing surface
Lower leg perpendicular to the sagittal and frontal planes/weight-bearing surface
Dorsiflexion/plantarflexion
SubtalarBisection of the posterior aspect of the calcaneum perpendicular to horizontal plane/weight-bearing surfaceSupination/pronation
Midtarsal complexPlantar aspects of the metatarsal heads lie in horizontal plane/on weight-bearing surface
Joint maximally pronated
Supination
First rayPlantar aspect of the first metatarsal head in same plane as lesser metatarsal heads, and horizontal planeDorsiflexion/plantarflexion
Inversion/eversion
Second/third/ fourth raysMaximally dorsiflexed on horizontal plane/weight-bearing surfacePlantarflexion
Fifth rayPlantar aspect of the fifth metatarsal head in same plane as lesser metatarsal heads, and horizontal planeDorsiflexion/plantarflexion
Inversion/eversion
First metatarsophalangeal jointPlantar aspect of hallux in ground contact on horizontal plane and the hallux neither adducted nor abductedFlexion/extension
Adduction/abduction
Circumduction
References in periodicals archive ?
KMI), a company specializing in small bone medical devices, today announced the launch of the K2 Hemi Toe Implant System, a one-piece surface replacement system for the "big toe" (the proximal phalanx of the first metatarsophalangeal joint, or the first MPJ) during the annual Midwest Podiatry Conference, being held in Chicago April 3-6.
Primary synovial osteochondromatosis of the first metatarsophalangeal joint, literature review of a rare presentation and a case report.
Other data can also lend support to the diagnosis, including a typical clinical history, sudden, violent acute joint pain, frequent classic first metatarsophalangeal joint involvement, underlying renal disease, a history or use of medicine causing hyperuricemia, high serum urate levels, radiological evidence supporting gout arthritis, and a positive response to topical cold administration or colchicine treatment.
But it is especially found in the first metatarsophalangeal joint.
More than half of the footwear had a flexion point distal to the level of the first metatarsophalangeal joint (MPJ).
The anatomical shape of the MOVEMENT Great Toe implants and the cannulated instrumentation allow for better remodeling of the joint surfaces compared to other commercially available implants and offer a complete approach to first metatarsophalangeal joint arthroplasty," said William Montross, DPM, of Front Range Orthopedics in Colorado Springs, CO.
To include or exclude a patient, we tested for the presence of neuropathy by pressing a 10 g Semmes-Weinstein monofilament (SWM) (North Coast Medical, Inc; Morgan Hill, California) [21] three times at each test location (first toe, first metatarsophalangeal joint [MTP1], MTP5, and heel) [20].
For first metatarsophalangeal joint degenerative changes with chronic pain, I inject 1 cc of the Zeel medication intra-articular and then give one-fourth of the cc of this mixture into each of the following acupuncture points of SP 3, SP 2, and LR, utilizing a 30-gauge needle.
First Metatarsophalangeal Joint Disorders Clinical Practice Guideline (including hallux valgus, hallux rigidus, and sesamoid disorders).
The anatomical shape of the MOVEMENT Hemi Great Toe implants and the cannulated instrumentation allow for better remodeling of the joints' surfaces compared to other commercially available implants as well as a streamlined approach to first metatarsophalangeal joint arthroplasty," said Dr.
In pseudogout, this process commonly involves the knee or wrist joint but also may involve the first metatarsophalangeal joint, as occurs in gout, or almost any other joint.
Excision arthroplasty is normally undertaken in elderly or sedentary patients, given the loss of flexion strength of the first metatarsophalangeal joint and the possibility of transfer metatarsalgia in active patients.