Sprains of the Metacarpophalangeal Joint of the Thumb

2015 ◽  
pp. 173-188
Author(s):  
Grégory Mesplié
Keyword(s):  
Metacarpophalangeal Joint

scholarly journals Verification of Finger Joint Stiffness Estimation Method With Soft Robotic Actuator

2020 ◽  
Vol 8 ◽  
Author(s):  
Xiang Qian Shi ◽  
Ho Lam Heung ◽  
Zhi Qiang Tang ◽  
Kai Yu Tong ◽  
Zheng Li
Keyword(s):  
Estimation Method ◽  
Joint Stiffness ◽  
Ground Truth ◽  
Clinical Score ◽  
Metacarpophalangeal Joint ◽  
Finger Joint ◽  
Joint Torque ◽  
Hand Rehabilitation ◽  
Stiffness Characteristic ◽  
Modified Ashworth Scale

Stroke has been the leading cause of disability due to the induced spasticity in the upper extremity. The constant flexion of spastic fingers following stroke has not been well described. Accurate measurements for joint stiffness help clinicians have a better access to the level of impairment after stroke. Previously, we conducted a method for quantifying the passive finger joint stiffness based on the pressure-angle relationship between the spastic fingers and the soft-elastic composite actuator (SECA). However, it lacks a ground-truth to demonstrate the compatibility between the SECA-facilitated stiffness estimation and standard joint stiffness quantification procedure. In this study, we compare the passive metacarpophalangeal (MCP) joint stiffness measured using the SECA with the results from our designed standalone mechatronics device, which measures the passive metacarpophalangeal joint torque and angle during passive finger rotation. Results obtained from the fitting model that concludes the stiffness characteristic are further compared with the results obtained from SECA-Finger model, as well as the clinical score of Modified Ashworth Scale (MAS) for grading spasticity. These findings suggest the possibility of passive MCP joint stiffness quantification using the soft robotic actuator during the performance of different tasks in hand rehabilitation.

Trans-metacarpal Screw Fixation for Extra-articular Proximal Phalangeal Base Fractures

2017 ◽  
Vol 22 (01) ◽  
pp. 35-38 ◽  
Author(s):  
Eichi Itadera ◽  
Takahiro Yamazaki
Keyword(s):  
Screw Fixation ◽  
Proximal Phalanx ◽  
Metacarpophalangeal Joint ◽  
Fixation Method ◽  
Compression Screw ◽  
Metacarpal Head ◽  
Headless Compression Screw ◽  
Articular Fractures ◽  
Intramedullary Canal ◽  
Cannulated Drill

We developed a new internal fixation method for extra-articular fractures at the base of the proximal phalanx using a headless compression screw to achieve rigid fracture fixation through a relatively easy technique. With the metacarpophalangeal joint of the involved finger flexed, a smooth guide-pin is inserted into the intramedullary canal of the proximal phalanx through the metacarpal head and metacarpophalangeal joint. Insertion tunnels are made over the guide-pin using a cannulated drill. Then, a headless cannulated screw is placed into the proximal phalanx. All of five fractures treated by this procedure obtained satisfactory results.

An Unusual Presentation of Methotrexate-Induced B-Cell Lymphoma of the Metacarpophalangeal Joint: A Case Report and Literature Review

2006 ◽  
Vol 31 (7) ◽  
pp. 1193-1196 ◽  
Author(s):  
J. Woodfin Kennedy ◽  
Lesley K. Wong ◽  
Behrooz Kalantarian ◽  
Leslie Turner ◽  
Cauley W. Hayes
Keyword(s):  
Case Report ◽  
Literature Review ◽  
B Cell ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Metacarpophalangeal Joint ◽  
Unusual Presentation

A volar approach to on-top plasty for correction of radial polydactyly: a case series of 21 patients

2021 ◽  
pp. 175319342098185
Author(s):  
Xia Fang ◽  
Ping-tak Chan ◽  
Shengbo Zhou ◽  
Xinyi Dai ◽  
Ruiji Guo ◽  
...  
Keyword(s):  
Case Series ◽  
Functional Results ◽  
Metacarpophalangeal Joint ◽  
Contralateral Side ◽  
Average Score ◽  
Pinch Strength ◽  
Level Of Evidence ◽  
Volar Approach ◽  
Flexion Extension ◽  
Aesthetic Results

Correction of unequal radial polydactyly in which neither thumb duplicates possess both well-developed proximal and distal components, remains challenging. Current techniques using on-top plasty techniques require circumferential incisions, often resulting in postoperative swelling and dorsal scars. We described our experience using a volar approach to achieve better aesthetic and functional results. Twenty-one patients underwent this surgery between 2008 and 2018, with a mean follow-up of 5.1 years. The mean flexion–extension arc for the metacarpophalangeal joint was 75° and that of the interphalangeal joint was 43°. Mean percentage of key, tripod and tip pinch strength were 77%, 79% and 77%, respectively, when compared with the contralateral side. The Vancouver Scar Scale showed an average score of 1.2. We conclude from our study that the volar approach to on-top plasty is a good technique for the correction of unequal radial polydactyly, with good functional and aesthetic results. Level of evidence: IV

Arthroplasty in the hand: what works and what doesn’t?

2021 ◽  
pp. 175319342110177
Author(s):  
Daniel B. Herren ◽  
Hajime Ishikawa ◽  
Marco Rizzo ◽  
Mark Ross ◽  
Michael Solomons
Keyword(s):  
Surgical Technique ◽  
Metacarpophalangeal Joint ◽  
Distal Radioulnar Joint ◽  
Proximal Interphalangeal Joint ◽  
Interphalangeal Joint ◽  
Carpometacarpal Joint ◽  
Thumb Carpometacarpal Joint ◽  
Radioulnar Joint ◽  
What Works ◽  
Thumb Carpometacarpal

This review describes the different possibilities for arthroplasties at the proximal interphalangeal joint, thumb carpometacarpal joint, distal radioulnar joint, metacarpophalangeal joint and the wrist. For each joint, the indication for arthroplasty is explained, the surgical technique with the suitable implant is described and a brief summary of the outcomes reported in the literature is given.

ATPase and ADPase activities in synovial membrane of equine metacarpophalangeal joint

Life Sciences ◽  
2002 ◽  
Vol 70 (20) ◽  
pp. 2445-2455 ◽  
Author(s):  
Paula A Jiménez ◽  
Lorena Garcı́a ◽  
H Adarmes ◽  
E González ◽  
M.A Valenzuela
Keyword(s):  
Synovial Membrane ◽  
Metacarpophalangeal Joint

Soft tissue abnormalities in Wassel Type VI radial polydactyly: a detailed anatomical study

2021 ◽  
Vol 46 (4) ◽  
pp. 352-359
Author(s):  
Susumu Saito ◽  
Itaru Tsuge ◽  
Hiroki Yamanaka ◽  
Naoki Morimoto
Keyword(s):  
Soft Tissue ◽  
Three Dimensional ◽  
Anatomical Study ◽  
Metacarpophalangeal Joint ◽  
Abductor Pollicis Brevis ◽  
Level Of Evidence ◽  
Thenar Muscle ◽  
Pulley System ◽  
Radial Deviation ◽  
Tissue Abnormalities

Wassel VI radial polydactyly is associated with metacarpal adduction and radial deviation of the metacarpophalangeal joint of the ulnar duplicate. The soft tissue abnormalities responsible for these deformities were characterized using preoperative multi-planar three-dimensional ultrasound and intraoperative observation in four patients. In all patients, the abductor pollicis brevis and superficial head of the flexor pollicis brevis inserted into the radial first metacarpal, whereas the adductor pollicis and deep head of the flexor pollicis brevis inserted into the ulnar thumb. Aberrant location of the flexor pollicis longus and absence of the A1 pulley system was associated with severe radial deviation. An additional superficial thenar muscle along the ulnar metacarpal was associated with minimal metacarpal adduction. Uneven forces on the ulnar duplicate could be associated with these characteristic deformities and joint instability. Knowledge of these abnormalities allows better planning of surgery and further insight into this rare radial polydactyly configuration. Level of evidence: II

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