No abstract available.
Metacarpophalangeal Joint* ; Palmar Plate*

Traumatic dislocation of the metacarphophalangeal joint is a rare injury. Complex dislocation often require surgical procedure due to its anatomical characteristics. We report one case of surgically treated traumatic dislocation of the 5th metacarpophalangeal joint that was successfully reduced by volar open reduction without splitting the volar plate.
Dislocations ; Joints ; Metacarpophalangeal Joint ; Palmar Plate

Traumatic boutonniere deformity of the thumb is rare in non-rheumatoid patients. Non-rheumatoid patient develops a boutonniere deformity of the thumb following a closed injury to the dorsoradial aspect of the metacarpophalangeal joint. The patient had an extensor lag of the metacarpophalangeal joint and paradoxical hyperextension of the interphalangeal joint. The patient required surgical treatment which included advancement and reattachment of the extensor pollicis brevis insertion and imbrication of the dorsoradial capsule to restore the anatomical alignment of the extensor pollicis longus. Conservative care of the metacarpophalangeal joint may be effective, but once a boutonniere deformity is developed, surgical treatment is necessary.
Congenital Abnormalities* ; Humans ; Joints ; Metacarpophalangeal Joint ; Thumb*

Dislocation of index metacarpophalangeal joint is complex and usually cannot be reduced by closed method. It is a relatively rare injury and there are no widely published studies on its management. We have experienced a case combined with osteochondral fracture of the dorsoulnar aspect of metacarpal head and reduced it using extensor tendon splitting simplified technique with good results. This technique is seemed te be simpler and safer than volar approach described by Kaplan.
Dislocations ; Head ; Metacarpophalangeal Joint ; Methods ; Tendons

PURPOSE: To describe the surgical treatment of the complex dorsal metacarpophalangeal dislocations and its results, emphasizing on the modified volar approach with A1 pulley release. MATERIALS AND METHODS: We experienced 6 cases of dorsal dislocation of the metacarpophalangeal joint. We performed open reduction with the modified volar approach described by Eaton and Dray. Postoperatively posteroanterior and lateral radiographs of the index finger metacarpophalangeal joint and metacarpophalangeal joint range of motion was followed. RESULTS: One case with a large osteochondral fracture was operated with volar and doral approach both. Overall end results were good without any significant restriction of motion and stability of the fingers. CONCLUSION: Modified volar approach with A1 pulley release is an excellent method for complex dorsal metacarpophalangeal dislocations without osteochondral fracture.
Benzodiazepines ; Dislocations ; Fingers ; Metacarpophalangeal Joint ; Range of Motion, Articular

PURPOSE: We analyzed the results of treatment of dislocation of the extensor tendons over the metacarpophalangeal joints. MATERIALS AND METHODS: Thirteen patients who had received treatment for dislocation of the extensor tendons over the metacarpophalangeal joint were reviewed. Ten patients had traumatic dislocations, two had spontaneous dislocations, and one had congenital dislocation. The long finger was most frequently affected. The other fingers were affected almost equally. Displacement of the extensor tendon always occurred in the ulnar direction in the long and ring fingers. The index and little fingers exhibited different patterns of dislocation. RESULTS: Nonsurgical treatment was undertaken in two cases. Surgery was performed in 11 cases. No recurrent dislocations were reported in any of the patients. Conculsions: Based on our experience, patients seen within 2 weeks of injury initially should be treated with splinting of the involved metacarpophalangeal joint. Chronic dislocations should be treated with a primary repair of the defect in the sagittal band. When the sagittal band is absent or deficient, the tendon must be stabilized using a loop procedure with a tendon slip.
Dislocations ; Displacement (Psychology) ; Fingers ; Humans ; Metacarpophalangeal Joint ; Splints ; Tendons

To investigate the relationship of skeletal maturity among the normal occlusion group and each malocclusion groups, the author used hand and wrist X-ray of 133 Korean 13 year old boys (normal occlusion 30, Class I malocclusion 35, Class II malocclusion 35 and Class III malocclusion 33) and assessed their skeletal maturity. In this study, fourteen skeletal maturity stages were selected from; Radius, Hamate, Pisiform, Ulnar sesamoid of the metacarpophalangeal joint of the first thumb, proximal phalanges of the first, second and third finger, middle and distal phalanx of the third finger. The difference of skeletal maturity of each malocclusion groups in relative to normal occlusion group and that of each malocclusion groups were analyzed. The findings of this study can be summerized as follows: 1. Average skeletal maturity stage of each groups were MP3cap stage in normal occlusion group, H-2 stage in Class I malocclusion group, midstage between S and H-2 stage in Class II malocclusion group, MP3cap stage in Class III malocclusion group. 2. There was no significant difference in skeletal maturity of Class J malocclusion and Class III malocclusion groups in relative to normal occlusion group. 3. There was significant retardation of skeletal maturity in Class II malocclusion group in relative to normal occlusion group. 4. There was no significant difference in skeletal maturity between Class I and Class II malocclusion groups. 5. There was no significant difference in skeletal maturity between Class I and Class III malocclusion groups. 6. There was significant retardation of skeletal maturity in Class II malocclusion group in relative to Class III malocclusion group.
Adolescent ; Fingers ; Hand ; Humans ; Malocclusion* ; Metacarpophalangeal Joint ; Radius ; Thumb ; Wrist

Dislocation of the extensor digitorum communis tendon at the level of metacarphophalangeal joint is frequently encountered in the hands of patients who have rheumatoid arthritis, but traumatic dislocation of the tendon is comparatively rare. When it occurs, it is usually in the middle finger. We are reporting two cases which had traumatic dislocations of the extenosor tendons of the index finger at themetacarphophalangeal joint and review related literature concerning clinical, anatomical, and biomechanical studies.
Arthritis, Rheumatoid ; Dislocations ; Fingers ; Hand ; Humans ; Joints ; Metacarpophalangeal Joint ; Tendons

OBJECTIVE: The purpose of this study was to identify the effect of EMG-triggered electrical neuromuscular stimulation for recovery of hemiplegic arm function. METHOD: EMG-triggered electrical stimulation was applied to the extensor digitorum communis (EDC) of 8 chronic hemiplegics who showed no functional changes for more than 3 months. Stimulation was started when the amplitude of processed EMG signal from the same muscle exceeded the preset threshold. The therapeutic effect was evaluated by kinesiologic and clinical methods before and after 4 weeks. Quantitative EMG from EDC, excursion of second metacarpophalangeal joint, and functional measurements were used. We also evaluated cognitive and perceptual effect on recovery of arm function. RESULTS: Subjects treated with EMG-triggered electrical stimulation showed significant gain in amplitude of quantitative EMG and excursion sum during maximal exertion comparing to those of pre-treatment (p<0.05). There was also an decrease of spasticity after treatment. But functional, perceptual and cognitive outcome were not changed significantly (p>0.05). CONCLUSION: These results suggest that EMG-triggered electrical stimulation might be an effective therapeutic modality to improve motor function of the hemiplegic arm of chronic brain injured patients.
Arm* ; Brain ; Electric Stimulation* ; Hemiplegia* ; Humans ; Metacarpophalangeal Joint ; Muscle Spasticity

We studied the results of the immediate microsurgical reconstruction of the distal digit injury with short vascular pedicled partial toe transfer. Thirteen patients with amputation or crush injury of the distal digit who underwent partial toe transfer at the authors' institute over 8-year period were reviewed. Delay between initial injury and reconstruction ranged from 1 to 9 days. All flaps were harvested on a short vascular pedicle, with anastomoses performed at a proximal interphalangeal joint level on the fingers and metacarpophalangeal joint level on the thumbs. Good to excellent cosmetic and functional results were obtained in all cases, with nearly normal-looking fingertip. The mean static two point discrimination was 10 mm. Immediate reconstruction with short vascular pedicled partial toe transfer is an excellent option for the reconstruction of the compostie defect of the distal digit.
Amputation ; Cosmetics ; Discrimination (Psychology) ; Fingers ; Humans ; Joints ; Metacarpophalangeal Joint ; Toes