Read by QxMD icon Read

Rotation of first metatarsal

David B Frumberg, Qais Naziri, Robert Pivec, Lee Bloom, Barbara Freeman, Jaime A Uribe
The routine workup of hallux valgus includes measurements of the distal metatarsal articular angle (DMAA). However, this angle may not be a reliable measurement when rotational deformities occur. Eight matched cadaveric feet were evaluated radiographically using fluoroscopy. The intermetatarsal angle (IMA), hallux valgus angle, and DMAA were evaluated as a baseline. Then, we assessed whether axial rotation of 15°, 30°, 45°, and 60° affected the accuracy of the IMA and the DMAA significantly. Statistical evaluation was performed using Student's t tests and analysis of variance...
2018: Journal of Long-term Effects of Medical Implants
Jin Su Kim, Ki Won Young
Hallux valgus (HV) is not a simple two-dimensional deformity but is instead a three-dimensional deformity that is closely linked to sesamoid position and first metatarsal (MT) pronation. HV may or may not be accompanied by sesamoid subluxation and/or first MT head pronation. Each of these scenarios should be assessed using weighted computed tomography scan preoperatively, and the necessary corrections should be performed accordingly.
June 2018: Foot and Ankle Clinics
Daniel Pollack
A 55-year-old man with poliomyelitis presented with a plantarflexed foot and painful ulceration of the sub-first metatarsophalangeal joint present for many years. A two-stage procedure was performed to bring the foot to 90°, perpendicular to the leg, and resolve the ulceration. The first stage corrected only soft-tissue components. It involved using a hydrosurgery system to debride and prepare the ulcer, a unilobed rotational skin plasty to close the ulcer, and a tendo Achillis lengthening to decrease forefoot pressure...
January 2018: Journal of the American Podiatric Medical Association
Joseph M Iaquinto, Matthew W Kindig, David R Haynor, QuocBao Vu, Nathan Pepin, Richard Tsai, Bruce J Sangeorzan, William R Ledoux
Measuring foot kinematics using optical motion capture is technically challenging due to the depth of the talus, small bone size, and soft tissue artifact. We present a validation of our biplane X-ray system, demonstrating its accuracy in tracking the foot bones directly. Using an experimental linear/rotary stage we imaged pairs of tali, calcanei, and first metatarsals, with embedded beads, through 30 poses. Model- and bead-based algorithms were employed for semi-automatic tracking. Translational and rotational poses were compared to the experimental stage (a reference standard) to determine registration performance...
January 1, 2018: Computers in Biology and Medicine
Tomohiko Ota, Takeo Nagura, Tetsuro Kokubo, Masateru Kitashiro, Naomichi Ogihara, Kenichiro Takeshima, Hiroyuki Seki, Yasunori Suda, Morio Matsumoto, Masaya Nakamura
BACKGROUND: It has been reported that hallux valgus (HV) is associated with axial rotation of the first metatarsal (1MT). However, the association between HV and torsion of the 1MT head with respect to the base has not been previously investigated. The present study examined whether there was a significant difference in 1MT torsion between HV and control groups. METHODS: Three-dimensional (3D) computed tomography (CT) scans of 39 ft were obtained, and 3D surface models of the 1MT were generated to quantify the torsion of the head with respect to the base...
2017: Journal of Foot and Ankle Research
Paul Dayton, Mindi Feilmeier
We reviewed the radiographic results of a group of patients who had undergone triplane correctional tarsometatarsal arthrodesis for symptomatic hallux abducto valgus with metatarsus primus abducto valgus. Of the 21 feet included in the present review, 17 (81%) displayed radiographic findings of metatarsal pronation preoperatively based on axial sesamoid views and positive lateral round sign on anteroposterior radiographs. At a mean follow-up period of 5.2 ± 1.6 months, a significant improvement in the tibial sesamoid position (TSP) on both anteroposterior (AP) and axial radiographs was measured...
September 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
Lavinia Maria Hogea, Bogdan Gheorghe Hogea, Laura Alexandra Nussbaum, Mirela Loredana Grigoraş, Bogdan Corneliu Andor, Codrina Mihaela Levai, Ana Cristina Bredicean
BACKGROUND AND AIMS: No deformity of the forefoot occurs more frequently than hallux valgus (HV), which is considered to be medial deviation of the first metatarsal and lateral deviation and rotation of the hallux, either with or without medial soft tissue enlargement of the metatarsal head. The HV deformity can lead to painful motion of the joint or difficulty in daily joint activity that often requires surgical correction. The aims of this study were to investigate the levels of foot pain and quality of life of patients with HV before and after surgery...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
Keisuke Matsubara, Tomofumi Matsushita, Yuto Tashiro, Seishiro Tasaka, Takuya Sonoda, Yasuaki Nakayama, Yuki Yokota, Yusuke Suzuki, Mirei Kawagoe, Tomoki Aoyama
BACKGROUND: Forefoot structure is important to understand some foot problems such as hallux valgus and metatarsalgia. Ultrasonography (US) is a highly portable, noninvasive, low cost, and fast imaging method, especially when compared to magnetic resonance imaging (MRI), computed tomography (CT), and radiography. As the use of US for evaluating forefoot bony structure has not been validated, except for the presence of synovitis, erosions and bursitis within the forefoot in people with inflammatory arthritis, the purpose of this study was to determine whether US is a reliable method for evaluating forefoot structure...
2017: Journal of Foot and Ankle Research
Christian Plaass, Sarah Ettinger, Lena Sonnow, Soeren Koenneker, Yvonne Noll, Andreas Weizbauer, Janin Reifenrath, Leif Claassen, Kiriakos Daniilidis, Christina Stukenborg-Colsman, Henning Windhagen
This is the first larger study analyzing the use of magnesium-based screws for fixation of modified Chevron osteotomies in hallux valgus surgery. Forty-four patients (45 feet) were included in this prospective study. A modified Chevron osteotomy was performed on every patient and a magnesium screw used for fixation. The mean clinical follow up was 21.4 weeks. The mean age of the patients was 45.5 years. Forty patients could be provided with the implant, in four patients the surgeon decided to change to a standard metallic implant...
December 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Jasper Stevens, Kenneth Meijer, Wouter Bijnens, Mathijs C H W Fuchs, Lodewijk W van Rhijn, Joris P S Hermus, Sander van Hoeve, Martijn Poeze, Adhiambo M Witlox
BACKGROUND: Arthrodesis of the first metatarsophalangeal (MTP1) joint is an intervention often used in patients with severe MTP1 joint osteoarthritis and relieves pain in approximately 80% of these patients. The kinematic effects and compensatory mechanism of the foot for restoring a more normal gait pattern after this intervention are unknown. The aim of this study was to clarify this compensatory mechanism, in which it was hypothesized that the hindfoot and forefoot would be responsible for compensation after an arthrodesis of the MTP1 joint...
February 2017: Foot & Ankle International
Robin C Lenz, Darshan Nagesh, Hannah K Park, John Grady
BACKGROUND: Resection of the medial eminence in hallux valgus surgery is common. True hypertrophy of the medial eminence in hallux valgus is debated. No studies have compared metatarsal head width in patients with hallux valgus and control patients. METHODS: We reviewed 43 radiographs with hallux valgus and 27 without hallux valgus. We measured medial eminence width, first metatarsal head width, and first metatarsal shaft width in patients with and without radiographic hallux valgus...
September 2, 2016: Journal of the American Podiatric Medical Association
Jun Young Choi, Yu Min Suh, Ji Woong Yeom, Jin Soo Suh
BACKGROUND: We aimed to compare the postoperative height of the second metatarsal head relative to the first metatarsal head using axial radiographs among 3 different commonly used osteotomy techniques: proximal chevron metatarsal osteotomy (PCMO), scarf osteotomy, and distal chevron metatarsal osteotomy (DCMO). METHODS: We retrospectively reviewed the radiographs and clinical findings of the patients with painful callosities under the second metatarsal head, complicated by hallux valgus, who underwent isolated PCMO, scarf osteotomy, or DCMO from February 2005 to January 2015...
January 2017: Foot & Ankle International
K Dullaert, J Hagen, K Klos, B Gueorguiev, M Lenz, R G Richards, P Simons
BACKGROUND: Subtle hypermobility of the first tarsometatarsal joint can occur concomitantly with other pathologies and may be difficult to diagnose. Peroneus Longus muscle might influence stability of this joint. Collapse of the medial longitudinal arch is common in flatfoot deformity and the muscle might also play a role in correcting Meary's angle. METHODS: A radiolucent frame was used to simulate weightbearing during CT examination. Eight pairs fresh-frozen lower legs were imaged in neutral position under non-weightbearing (75N), weightbearing (700N) and with 15kg weights hung from Peroneus Longus tendon...
May 2016: Clinical Biomechanics
Naoki Yoshioka, Kazuya Ikoma, Masamitsu Kido, Kan Imai, Masahiro Maki, Yuji Arai, Hiroyoshi Fujiwara, Daisaku Tokunaga, Nozomu Inoue, Toshikazu Kubo
BACKGROUND: The recent classifications for posterior tibial tendon dysfunction (PTTD) stage II are based on forefoot deformity, but there is still no consensus regarding a detailed explanation of the clinical condition. The purposes of this study were to clarify the clinical condition of flatfoot deformity using three-dimensional (3D) computed tomography (CT) imaging under loading on both healthy and flat feet and to compare 3D movement of the forefoot in response to load. METHODS: Ten volunteers and 10 PTTD stage II patients with symptomatic flatfoot deformity were examined...
March 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
Hui-hao Wang, Min Zhang, Wen-xin Niu, Xu-zhe Shen, Hong-sheng Zhan
OBJECTIVE: The clinical effect of the Shi's cervical reduction technique for cervical spondylosis and related disorders has confirmed, however, there were few studies on the body motion during manipulation in vivo study. This study is to summary the law of motion and the motion characteristics of the right operation shoulder, elbow, knee and ankle joints by data acquisition and analysis with the 3D motion capture system. METHODS: The markers were pasted on the head, trunk, left and right acromion, elbow joint, wrist joint inner side and the outer side of the inner and the outer side and the lateral upper arm, forearm lateral, anterior superior iliac spine, posterior superior iliac spine, trochanter, femoral and tibial tubercle, inner and outer side of knee, ankle, fibular head, medial and lateral in first, 2,5 metatarsal head, heel and dual lateral thigh the calf, lateral tibia of one manipulation practioner, and the subject accepted a complete cycle of cervical "Jin Chu Cao and Gu Cuo Feng" manipulation which was repeated five times...
October 2015: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
Lin Jian, Liang Cheng, Zheng Heping, Lu Hua, Zhang Tianhao, Wang Zhijiang, Wan Huajun
OBJECTIVE: To introduce the clinical application of venous nutrition flap pedicled by medial plantar artery of the hallux on the medical aspect of the foot. METHODS: Based on the anastomoses between the medial plantar artery of the hallux and the nutritional vein, the flap was designed with the perforator of medial plantar artery adjacent to the first metatarsal bone as the rotation point. The flap axis was along the vein at the medial aspect of the foot between rotation point and medial malleolus...
May 2015: Zhonghua Zheng Xing Wai Ke za Zhi, Zhonghua Zhengxing Waike Zazhi, Chinese Journal of Plastic Surgery
Paul Dayton, Merrell Kauwe, Lawrence DiDomenico, Mindi Feilmeier, Rachel Reimer
The data from 35 consecutive patients with hallux valgus undergoing triplane arthrodesis at the first tarsal metatarsal joint were studied to determine the amount of first metatarsal frontal plane rotation (supination) needed to anatomically align the first metatarsal phalangeal joint on an anterior posterior radiograph without soft tissue balancing at the first metatarsal phalangeal joint. Radiographs were measured both pre- and postoperatively to assess the 1-2 intermetatarsal angle, hallux abductus angle, and tibial sesamoid position (TSP)...
March 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
Xiang Geng, Chen Wang, Xin Ma, Xu Wang, Jiazhang Huang, Chao Zhang, Jian Xu, Junsheng Yang
BACKGROUND: Hallux valgus (HV) deformity is closely correlated to the hypermobility of the first metatarsal-cuneiform joint, but adequate understanding of the three-dimentional (3D) mobility of this joint in normal or HV feet is lacking. This study was conducted to investigate the mobility of the first metatarsal-cuneiform joint in multiple planes during body weight-bearing conditions for both normal and HV patients. METHODS: A total of 10 female volunteers (20 feet) and 10 female HV patients (20 feet) participated in this study...
September 15, 2015: Journal of Orthopaedic Surgery and Research
Daniel J Hatch, Abigail Smith, Troy Fowler
The angle formed by the distal articular facet of the medial cuneiform has been evaluated and discussed by various investigators. However, no consistent method has been available to radiograph and measure this entity. The wide variability of the angle is not conducive to comparative analysis. Additionally, investigators have noted that the angles observed (obliquity) vary greatly because of changes in radiographic angle, foot position, rotation of the first ray, and declination of the first metatarsal. Recognizing that these variables exist, we propose a reproducible assessment using digital radiography and application of deformity of correction principles...
January 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
Satoshi Yamaguchi, Takahisa Sasho, Jun Endo, Yohei Yamamoto, Ryuichiro Akagi, Yasunori Sato, Kazuhisa Takahashi
BACKGROUND: Correction of pronation deformity and metatarsal primus varus is an important component of hallux valgus surgery, necessary to achieve a satisfactory correction and to prevent post-operative recurrence. Roundness of the lateral edge of the first metatarsal head (round sign) on the dorsoplantar radiograph of the foot has been empirically advocated as an indicator of first metatarsal pronation. The purpose of this study was to clarify the effect of rotation and inclination of the first metatarsal on the shape of the lateral edge of the first metatarsal head...
September 2015: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"