Kinematics of the First Metatarsophalangeal Joint in Intact and Surgically Altered Cadavers

1997 ◽  
Vol 18 (3) ◽  
pp. 132-137 ◽  
Author(s):  
Craig Nevin
Keyword(s):  
Hallux Valgus ◽  
Soft Tissues ◽  
Proximal Phalanx ◽  
Metatarsophalangeal Joint ◽  
Hallux Rigidus ◽  
First Metatarsophalangeal Joint ◽  
First Metatarsal ◽  
Silicone Prosthesis

The kinematics of the first metatarsophalangeal joint were investigated in five embalmed cadaver feet (three normal, one hallux valgus, one hallux rigidus). Sagittal displacements of the first metatarsal relative to the proximal phalanx were measured during first metatarsophalangeal joint dorsiplantarflexion; first in intact cadavers, then with an intact capsule sans extracapsular soft tissues (hallux amputated at the first metatarsal cuneiform joint), and finally with a double-stem silicone prosthesis inserted. In the intact cadaver, the base of the metatarsal is raised by FMTP dorsiflexion in a manner similar to a cam. However, this effect ceased when the extracapsular soft tissues were removed. Silicone arthroplasty did not restore cam function.

scholarly journals First-Tarsometatarsal Joint Alignment After First-Metatarsophalangeal Joint Arthrodesis for Hallux Valgus

2021 ◽  
Vol 6 (2) ◽  
pp. 247301142110085
Author(s):  
Christopher Traynor ◽  
James Jastifer
Keyword(s):  
Hallux Valgus ◽  
Case Series ◽  
Metatarsophalangeal Joint ◽  
Retrospective Case ◽  
Level Of Evidence ◽  
First Metatarsophalangeal Joint ◽  
First Metatarsal ◽  
Metatarsal Angle ◽  
Medial Cuneiform ◽  
Radiographic Alignment

Background: Instability of the first-tarsometatarsal (TMT) joint has been proposed as a cause of hallux valgus. Although there is literature demonstrating how first-TMT arthrodesis affects hallux valgus, there is little published on how correction of hallux valgus affects the first-TMT joint alignment. The purpose of this study was to determine if correction of hallux valgus impacts the first-TMT alignment and congruency. Improvement in alignment would provide evidence that hallux valgus contributes to first-TMT instability. Our hypothesis was that correcting hallux valgus angle (HVA) would have no effect on the first-TMT alignment and congruency. Methods: Radiographs of patients who underwent first-MTP joint arthrodesis for hallux valgus were retrospectively reviewed. The HVA, 1-2 intermetatarsal angle (IMA), first metatarsal–medial cuneiform angle (1MCA), medial cuneiform–first metatarsal angle (MC1A), relative cuneiform slope (RCS), and distal medial cuneiform angle (DMCA) were measured and recorded for all patients preoperatively and postoperatively. Results: Of the 76 feet that met inclusion criteria, radiographic improvements were noted in HVA (23.6 degrees, P < .0001), 1-2 IMA (6.2 degrees, P < .0001), 1MCA (6.4 degrees, P < .0001), MC1A (6.5 degrees, P < .0001), and RCS (3.3 degrees, P = .001) comparing preoperative and postoperative radiographs. There was no difference noted with DMCA measurements (0.5 degrees, P = .53). Conclusion: Our findings indicate that the radiographic alignment and subluxation of the first-TMT joint will reduce with isolated treatment of the first-MTP joint. Evidence suggests that change in the HVA can affect radiographic alignment and subluxation of the first-TMT joint. Level of Evidence: Level IV, retrospective case series.

The Mayday Distal First Metatarsal Osteotomy for Hallux Valgus: A Review After the Introduction of a New Instrument

1997 ◽  
Vol 18 (1) ◽  
pp. 3-7 ◽  
Author(s):  
G.D. Terzis ◽  
F. Kashif ◽  
M.A.S. Mowbray
Keyword(s):  
Hallux Valgus ◽  
Metatarsophalangeal Joint ◽  
Metatarsal Osteotomy ◽  
Distal Fragment ◽  
Short Term ◽  
First Metatarsophalangeal Joint ◽  
First Metatarsal ◽  
Satisfactory Outcome ◽  
New Instrument

We present the short-term follow-up of 55 symptomatic hallux valgus deformities in 38 patients, treated operatively with a modification of the spike distal first metatarsal osteotomy, as described by Gibson and Piggott in 1962. The age range of the patients was 17 to 72 years at the time of surgery. The postoperative follow-up period was 12 to 55 months. Excellent and good clinical and radiographic results were recorded in 96.2% of our patients. Two of the patients (3.8%) were dissatisfied; one of them complained of metatarsalgia after the procedure, and the other had stiffness of the metatarsophalangeal joint and metatarsalgia that had been present before surgery. Three others (5.45%) required revision after early postoperative displacement but were asymptomatic subsequently. We concluded that our technique is an effective method of treating mild hallux valgus deformities with the advantages of simplicity, no shortening of the first metatarsal, and no risk of dorsal tilting of the distal fragment. Hallux valgus (lateral deviation of the great toe) is not a single disorder, as the name implies, but a complex deformity of the first ray that sometimes may involve the lesser toes. More than 130 procedures exist for the surgical correction of hallux valgus, which means that no treatment is unique. No single operation is effective for all bunions. 5 , 22 , 29 The objectives of surgical treatment are to reduce pain, to restore articular congruency, and to narrow the forefoot without impairing function, by transferring weight to the lesser metatarsals either by shortening or by dorsal tilting of the first metatarsal. 5 , 19 , 24 , 27 Patient selection is important for a satisfactory outcome after surgery of any kind, and our criteria were age, degree of deformity, presence of arthrosis, and subluxation of the first metatarsophalangeal joint. 1 , 5 , 13 , 19 – 21 , 24 , 29 In this study, we present a new method of treating hallux valgus that has been used at Mayday University Hospital since 1990. The technique was first described at the British Orthopaedic Foot Surgery Society, Liverpool, November 1990, 7 and we now present the short-term follow-up results. The procedure is essentially a modification of the spike osteotomy of the neck of the first metatarsal, as described by Gibson and Piggott. 9 It has the advantages of simplicity, no shortening of the first metatarsal, and no risk of dorsal displacement of the distal fragment.

The Effects of Cheilectomy on Dorsiflexion of the First Metatarsophalangeal Joint

1997 ◽  
Vol 18 (12) ◽  
pp. 803-808 ◽  
Author(s):  
William A. Heller ◽  
Michael E. Brage
Keyword(s):  
Proximal Phalanx ◽  
Metatarsophalangeal Joint ◽  
Metatarsal Head ◽  
Hallux Rigidus ◽  
Surface Velocity ◽  
First Metatarsophalangeal Joint ◽  
Motion Patterns ◽  
Custom Made ◽  
Fresh Frozen ◽  
End Stage

Our purpose in this study was to determine the effects of cheilectomy on the mechanics of dorsiflexion of the first metatarsophalangeal (MTP) joint. Ten fresh-frozen cadaver feet were utilized, of which two demonstrated radiographic evidence of hallux rigidus. Each specimen was rigidly mounted on a custom-made slide tray that was articulated with a hinge mechanism designed to dorsiflex the first MTP joint. Range-of-motion measurements were made on the first MTP joint. Cheilectomy of 30% of the metatarsal head diameter was performed. Lateral radiographs with the beam centered on the MTP joint were taken with the joint at neutral, 20°, 40°, and at the limits of dorsiflexion. This process was repeated after a 50% cheilectomy was performed. The radiographs were examined for changes in joint congruence and in patterns of surface motion as the hallux moved from neutral to full dorsiflexion. Instant centers of rotation were determined by a method first described by Rouleaux. We constructed surface velocity vectors to describe patterns of motion of the first MTP joint. The mean dorsiflexion of the first MTP joint was 67.9° and increased to 78.3° after 30% cheilectomy. The increase in dorsiflexion was significantly greater in the two specimens with hallux rigidus (33%) than in the other specimens (12.1%). After both levels of cheilectomy, the proximal phalanx demonstrated pivoting at the resection site on the metatarsal head. This pivoting resulted in abnormal motion patterns across the MTP joint. Normal sliding motion predominated in early dorsiflexion, with compression peaking at the end stage of dorsiflexion, producing jamming of the articular surfaces. Cheilectomy significantly increased dorsiflexion of the MTP joint, but resulted in abnormal motion patterns. The increase in dorsiflexion resulted from pivoting of the proximal phalanx on the metatarsal head, resulting in anomalous velocity vectors and compression across the MTP joint.

Clinical, Quantitative Assessment of First Tarsometatarsal Mobility in the Sagittal Plane and Its Relation to Hallux Valgus Deformity

1994 ◽  
Vol 15 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Kaj Klaue ◽  
Sigvard T. Hansen ◽  
Alain C. Masquelet
Keyword(s):  
Hallux Valgus ◽  
Sagittal Plane ◽  
Metatarsophalangeal Joint ◽  
Metatarsal Head ◽  
Valgus Deformity ◽  
Main Concern ◽  
First Metatarsophalangeal Joint ◽  
First Metatarsal ◽  
Hallux Valgus Deformity ◽  
First Ray

Today, bunion surgery is still controversial. Considering that a bunion deformity in fact may be a result of multiple causes, the rationale of the currently applied techniques of surgical treatment has not been conclusively demonstrated. In view of the known hypermobility syndrome of the first ray that results in insufficient weightbearing beneath the first metatarsal head, the relationship between this syndrome and hallux valgus deformity has been investigated. The results suggest a direct relationship between painful hallux valgus deformity and hypermobility in extension of the first tarsometatarsal joint. A pathological mechanism of symptomatic hallux valgus is proposed that relates this pathology with primary weightbearing disturbances in the forefoot where angulation of the first metatarsophalangeal joint is one of the consequences. The alignment of the metatarsal heads within the sagittal plane seems to be a main concern in many hallux valgus deformities. As a consequence, treatment includes reestablishing stable sagittal alignment in addition to the horizontal reposition of the metatarsal over the sesamoid complex. As an example, first tarsometatarsal reorientation arthrodesis regulates the elasticity of the multiarticular first ray within the sagittal plane and may be the treatment of choice in many hallux valgus deformities.

Hallux Varus Interphalangeus Following Osteochondral Fracture of the Proximal Phalanx: A Case Report

2020 ◽  
Vol 110 (5) ◽  
Author(s):  
Calvin J. Rushing ◽  
Tarak Amin ◽  
Alberto Herrada ◽  
Steven M. Spinner
Keyword(s):  
Case Report ◽  
Hallux Valgus ◽  
Proximal Phalanx ◽  
Metatarsophalangeal Joint ◽  
First Metatarsophalangeal Joint ◽  
Osteochondral Fracture ◽  
Medial Head ◽  
Hallux Varus ◽  
Hallux Valgus Interphalangeus ◽  
Joint Fusion

Hallux valgus interphalangeus deformity has been previously reported in the literature following trauma and first metatarsophalangeal joint fusion. However, to the best of our knowledge, hallux varus interphalangeus deformity has not been previously reported. We present the case of a 26-year-old skeletally mature woman who sustained an acute, open hallux varus interphalangeus injury following an osteochondral fracture of the medial head of the proximal phalanx.

scholarly journals Cartiva Hemiarthroplasty for the Treatment of Hallux Rigidus

2020 ◽  
Vol 5 (4) ◽  
pp. 2473011420S0025
Author(s):  
Tyler Hoskins ◽  
Jay Patel ◽  
David Goyette ◽  
Christopher Mazzei ◽  
Arianna L. Gianakos ◽  
...  
Keyword(s):  
Controlled Trial ◽  
Proximal Phalanx ◽  
Metatarsophalangeal Joint ◽  
Retrospective Chart Review ◽  
Hallux Rigidus ◽  
P Value ◽  
First Metatarsophalangeal Joint ◽  
Surgical Interventions ◽  
Phone Calls ◽  
Surgical Methods

Category: Lesser Toes; Arthroscopy; Other Introduction/Purpose: Hallux rigidus, degenerative arthritis of the first metatarsophalangeal (MTP) joint, is the most common type of arthritis of the foot, affecting nearly 2.5% of the population over the age of 50. The standard of treatment is non-operative in nature followed by surgical intervention if pain is not alleviated. Currently, first metatarsal dorsal cheilectomy and proximal phalanx osteotomy remain the two most common surgical interventions. Recently, first metartasophalangeal hemiartshroplasty with synthetic cartilage implant has become more popular. This procedure involves the implantation of synthetic cartilage in order to preserve motion and maintain joint space of the first metatarsophalangeal joint. Due to the scarce amount of literature reported on this technique, the goal of this study was to examine its efficacy in patients treated for hallux rigidus. Methods: From 2017 to 2019 twenty patients underwent a synthetic cartilage implant hemiarthroplasty for the treatment of hallux rigidus. Functional outcome scores were assessed using the American Orthopaedic Foot & Ankle scoring system (AOFAS) and the Foot and Ankle Outcome Score Survey (FAOS). Outcomes, complications, and any reoperations were recorded through retrospective chart review, direct patient examination, and phone calls to patients and their families. A statistical analysis was performed using Fischer’s Exact Test. Results were deemed statistically significant if the calculated p-value was less than 0.05. Results: The mean follow up for our patient cohort was 17.16 months (range, 12 to 26). The average age was 55.61 years (range, 47 to 73). Mean pre-op AOFAS and FAOS were 56.37 and 55 respectively, compared to 91.89 and 88.84 after surgery (p-value <0.05). There were no significant complications or reoperations reported in any of the patients at the time of publication. Conclusion: The pre-op and post-op AOFAS and FAOS scores were deemed statistically significant. Synthetic cartilage implant hemiarthroplasty, although new, offers promising results and remains a viable treatment option to decrease pain, improve function, and maintain motion for advanced hallux rigidus. However, a prospective randomized controlled trial comparing the efficacy of this procedure to other surgical methods would be necessary to further evaluate and validate our findings.

scholarly journals Effectiveness of the Plantar Aponeurosis Release for Limitation of the First Metatarsophalangeal Joint Extension after Hallux Valgus Surgery

2017 ◽  
Vol 2 (3) ◽  
pp. 2473011417S0001
Author(s):  
Hongjoon Choi ◽  
Daewook Kim ◽  
Yeong Hun Kang ◽  
Jong Ho Park
Keyword(s):  
Hallux Valgus ◽  
Metatarsophalangeal Joint ◽  
Metatarsal Head ◽  
Knee Extension ◽  
First Metatarsophalangeal Joint ◽  
Plantar Aponeurosis ◽  
First Metatarsal ◽  
Metatarsal Angle ◽  
Additional Procedure ◽  
The Mean

Category: Midfoot/Forefoot Introduction/Purpose: Even though stiffness of the first metatarsophalangeal joint (1MTP) is not a common complication, reduced dorsiflexion range of motion at the 1MTP after surgery for hallux valgus was reported as a complication. However, few clinical studies have investigated this issue and no clinical resolution has been reached thus far. We hypothesized that tightness of the gastrocnemius-plantar aponeurosis complex is one of the factors that limits the extension of 1MTP after hallux valgus surgery. Thus, an additional procedure of the plantar aponeurosis release during hallux valgus surgery may improve the range of extension at 1MTP. The purpose of this study was to test the efficacy of plantar aponeurosis release in improving the range of extension when a limitation is detected after hallux valgus surgery. Methods: Thirteen patients (17 feet) with limited 1MTP extension after hallux valgus surgery, underwent an additional procedure of plantar aponeurosis release. The inclusion criterion was limitation of 1MTP extension showed more than 15 degrees difference between knee extension and flexion position, measured after completing all procedures of the hallux valgus surgery. The passive range of 1MTP extension was evaluated by a goniometer while the first metatarsal head was supported with a palm, assuming a weightbearing position with knee extension and flexion, after completing all procedures of the hallux valgus surgery (Barouk test). A silfverskiold test was performed in all cases preoperatively. The weightbearing dorsoplantar and lateral radiographs of the foot were performed to measure the hallux valgus angle, intermetatarsal angle, distal metatarsal articular angle, and the talo-first metatarsal angle. Results: The mean range of 1MTP extension significantly improved from 2.53 degrees to 40.88 degrees in the knee extension position (p<0.0000). The mean range of the 1MTP extension also improved from 18.24 degrees to 43.24 degrees in the knee flexion position. The silfverskiold test was positive in 12 cases. In all patients, congruence of 1MTP was corrected. There were no surgery-related complications such as plantar aponeurosis rupture or nerve injury. Conclusion: Our study supports tightness of the gastrocnemius-plantar aponeurosis complex is one of the factors that limit the extension of 1MTP after hallux valgus surgery. Hence, plantar aponeurosis release can be considered as an effective additional procedure to improve the range of 1MTP extension when a limitation is presented after hallux valgus surgery.

Silastic Ball Spacer Arthroplasty in the Management of Hallux Valgus and Hallux Rigidus

Foot & Ankle ◽  
1989 ◽  
Vol 10 (2) ◽  
pp. 61-64 ◽  
Author(s):  
N. S. Broughton ◽  
A. Doran ◽  
B. F. Meggitt
Keyword(s):  
Hallux Valgus ◽  
Young Patients ◽  
Metatarsophalangeal Joint ◽  
Hallux Rigidus ◽  
New Bone Formation ◽  
Great Toe ◽  
First Metatarsophalangeal Joint ◽  
Proximal Migration ◽  
Original Concept

Sixty-two feet in 39 patients who were treated by insertion of a silastic ball spacer prosthesis into the first metatarsophalangeal joint for hallux valgus or hallux rigidus have been reviewed with a follow-up time of between 2 and 6 years. Twenty-one results (34%) were excellent, 27 (43%) were fair, 13 (21%) were poor, and one was revised. Seventeen feet (27%) had some metatarsalgia at followup. Results were disappointing in the young patients; in 19 cases of hallux valgus under the age of 45, 8 were either poor or had been revised. The original concept of the silastic ball spacer was to maintain great toe length and prevent proximal migration of the sesamoids. However 60% of these feet showed settling of the prosthesis or new bone formation around the prosthesis and 54% had more than 2 mm proximal migration of the sesamoid bones. The symptomatic results in these patients were similar to those in whom great toe length had been successfully maintained. The silastic ball spacer infrequently achieves its aims, however maintenance of hallux length does not seem to be important in the symptomatic result.

Great Toe Metatarsophalangeal Joint Arthrodesis: A User-Friendly Technique

Foot & Ankle ◽  
1992 ◽  
Vol 13 (7) ◽  
pp. 367-377 ◽  
Author(s):  
Ronald W. Smith ◽  
Terry L. Joanis ◽  
Phyllis D. Maxwell
Keyword(s):  
Hallux Valgus ◽  
Metatarsophalangeal Joint ◽  
Metatarsal Head ◽  
Hallux Rigidus ◽  
First Metatarsal ◽  
Pin Fixation ◽  
Patient Responses ◽  
K Wires ◽  
User Friendly

Thirty-four feet (23 patients) were treated with a metatarsophalangeal (MP) joint fusion of the hallux using five threaded 0.062-in K wires for fixation. Operations were done for the following diagnoses: rheumatoid arthritis (26 procedures), hallux rigidus (1), salvage of previous bunionectomies (3), hallux valgus with absent toe, bilateral fusion (2), severe hallux valgus with chronic MP joint synovitis (1), and congenital hallux varus (1). The ages ranged from 17 to 73 years, with an average of 55 years. Follow-up was available on 31 of the fusions by questionnaire and telephone contact, with an average follow-up of 24 months and a minimum of 1 year. The successful arthrodesis rate was 97%. In 9% of the procedures (three cases), the patients were dissatisfied: This was due to pain under the first metatarsal head in two cases and to impingement between the first and second toes in a third case. In 91% of the fusions (29 of 32 patient responses), the patients stated that they would have the surgery if they had to choose again. Patients indicated “complete satisfaction” in 15 fusions and “satisfaction with reservations” in 14. Patients felt that their ability to wear desired shoes was improved in 48% of the procedures, was unchanged by the fusions in 26%, and was worse than before the operation in 26%. Based on this study and review of the literature, a recommendation is made for fusing the rheumatoid hallux with 25° to 30° of valgus and 10° of extension. In general, selection of toe position for fusion is based on reducing stress on the hallux interphalangeal joint and accommodating the position of the second toe. The multiple pin fixation technique gives a high incidence of fusion, it is easy to perform, and it is adaptable to the varying requirements for toe position.

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