Dorsal Side Of Hand Research Articles

Effect of peri-hand space among users of a familiar tool: more attention enhancement in space near palm than dorsal side of hand

Effect of peri-hand space among users of a familiar tool: more attention enhancement in space near palm than dorsal side of hand

Association of knee atypical lesions with foot ulcers and a peak of kappa IgM monoclonal immunoglobulin

Association of knee atypical lesions with foot ulcers and a peak of kappa IgM monoclonal immunoglobulin

Results of Implementing Preventive Health Measures for Workers of Certain Occupations in the Shipbuilding Industry

Background: The shipbuilding industry is one of the leading sectors of the national economy of our country. In St. Petersburg, shipyards employ up to 60 % of all blue-collar workers, most of them being engineering technicians and shipbuilding specialists. Chippers occupy a special place among the latter. It is known that chippers performing heavy and extremely heavy physical labor often develop occupational diseases induced by hand and arm overstrain, such as epicondylosis, rotator cuff syndrome, and osteoarthritis. Prolonged static and dynamic loads on the upper extremities in combination with hand-arm vibration and forced postures cause dystrophic changes in the cartilage (arthrosis), and then in the bone tissue (osteoarthritis), thus necessitating appropriate preventive measures to preserve work ability of shipbuilders, including chippers. Objective: To evaluate effectiveness of specially developed and patented techniques based exposure to low-intensity laser radiation for restoring occupationally impaired functions of the musculoskeletal system. Material and methods: In 2021, we studied working conditions of 38 chippers and 25 engineering technicians aged 35 to 58 years, with at least 10 years of employment, experiencing muscle tension and overstrain of the upper extremities. All the workers were examined by a surgeon and a neurologist. To restore the functional state of the upper limb blood supply, laser radiation in the red region of the spectrum was applied to the back surface of workers’ hands. Regional blood circulation of the hands was then evaluated using a Mizar-REO rheograph, Mizar LLC, St. Petersburg, Russian Federation. Results: After ten 5-minute sessions of radiation therapy, the number of complaints of general fatigue, irritability, lethargy, weakness, and sleep disturbance decreased by 2.5 and 3 times in chippers and engineering technicians, respectively. The number of complaints of headaches, pain in the heart and hands reduced as well. Only two chippers reported persistence of some minor pains in their hands. The regional blood circulation also demonstrated an objective improvement. Conclusion: Exposure of the dorsal side of hands to low-intensity laser radiation in the red region of the spectrum effectively relieves vasospasm of the upper extremities and leads to an improvement in blood supply. Introduction of the developed preventive care measure will contribute to occupational disease and disability prevention.

Tumorous conditions of the pediatric hand and wrist: Ten-year experience of a single center.

Objectives This study aims to evaluate the distribution and prevalence of pediatric hand tumors and tumor-like lesions according to age and gender.Patients and methods We retrospectively examined the details of hospital records of 646 patients who were operated for hand mass between January 2009 and January 2019 and whose pathological diagnosis was established in the same hospital. A total of 54 patients (18 males, 36 females; mean age 12.07 years; range, 3 month to 17 years) under 18 years of age who had been operated for the wrist or hand mass were included in the study.Results Out of 54 tumors, 53 were benign (98%) and one was malignant (2%). There were 42 soft tissue tumors (78%) and 12 bone tumors (22%). The most common soft tissue mass was ganglion cyst (n=12). Six out of 12 ganglion cysts were on the dorsal side of hand or wrist and six were on the volar side. The distribution of the tumors according to gender was not statistically significant (p=0.73). We had two recurrences: one patient with giant cell tumor of the tendon sheath and one with palmar fibromatosis.ConclusionPediatric hand/wrist masses are mostly benign tumorous conditions. The location of the pathologies may be different from the adults. Diagnosis of the tumor should be established carefully clinically and radiologically while malignant tumors should be kept in mind by both pediatricians and orthopedic surgeons.

Medicolegal characteristics of defense injuries in cases of homicides

Background/Aim. During the homicidal act, a victim usually tries to defend himself/herself, and due to these attempts he/she could sustain so-called defense injuries, mostly localized on the arms. The aim of this research was to analyze important medicolegal characteristics of defense injuries, particularly regarding their importance in forensic expertise of homicides. Methods. We analyzed autopsies of all homicidal cases with defense injuries in Belgrade during a three-year period. Results. Defensive injuries were registered in 71 victims of murder. The majority (67.61%) of victims with defense injuries were males. About 25% of victims were aged from 21 to 30 years. The majority (60) of victims were not under influence of alcohol. Homicides were mostly (90.14%) performed by mechanical weapons. The highest frequency of defense injuries was noticed in the victims with multiple homicidal injuries localized on the front side of the body. In a half (50.7%) of the cases they were present on both arms of the victim, mostly on the dorsal side of hands and forearms. Bruises were the most frequent form of defense injuries (36.61% out of 71 cases), while incisions, abrasions, gunshot injuries and stab wounds were less common. Conclusion. Determination of defense injuries and their medicolegal characteristics enables collecting of facts that are important for legal estimation of homicide, as well as for adequate sentence at the end of the court procedure.

泳動作中の手部のキネマティクスと圧力分布の関係

The purpose of this study was to verify the utility of the methodology using the pressure distribution analysis and motion capture system that can measure the pressure distribution, the fluid forces, and the hand kinematics. A male swimmer participated in the study, and imitated the front crawl stroke motion at standing position with changing the stroke patterns and the stroke speeds. During trials, six pressure sensors were attached at swimmer's right hand to measure the pressure distributions around the hand, and to estimate the fluid forces acting on the hand. And five reflecting markers were attached at right hand to analyze the hand kinematics by using the motion capture system (Opus Underwater, Qualisys). As results, the hand velocities significantly correlated with the pressure values and the fluid forces (r = 0.76-0.99, p < 0.05). And the hand acceleration significantly correlated with the pressure valued at dorsal side (r = −0.74-−0.76, p < 0.05). These results suggest that the unsteady flow occurred at dorsal side of hand and increased the fluid forces.

Analysis of direct oil contrast lymphography of upper limb lymphatics traversing the axilla – A lesson from the past – Contribution to the concept of axillary reverse mapping

IntroductionAxillary reverse mapping (ARM) is a method to preserve upper extremity (UE) lymphatics during axillary surgery in breast cancer patients. This may reduce the incidence of lymphedema. Very precise method to demonstrate lymphatic drainage is direct X-ray lymphography. Materials and methodsThe evaluation of direct lymphography X-ray images of the axilla and proximal part of the upper extremity was performed in 9 subjects. As contrast was used Lipiodoil injected on the dorsal side of hand. ResultsThe lymph from UE is drained by 2–4 main afferent collectors, which in 5 of 9 cases entered into one node in the lateral axilla (ARM node). This node was considered to be the sentinel lymph node for the UE. In 4 cases a cranial collector was shown, which led directly to nodes in the upper part of the axilla. This collector had numerous anastomoses with other collectors before entering the axillary nodes. The most important finding is the demonstration of numerous lymphatic anastomoses that take place between all imaged nodes in the axilla including the caudal nodes, which is the most frequent localization of the breast sentinel lymph node. ConclusionThe relationship of lymphatic drainage of the UE and breast are closely related and share numerous connections. These connections represent the main problem of the ARM concept because they may pose potencional route for metastatic cancer cells in sentinel node positive breast cancer patients. Further studies are necessary to improve understanding of this method.Axillary reverse mapping – breast cancer – lymphedema – sentinel node biopsy.

Combined implantation of bilateral flaps of toe on reconstruction of thumb and other fingers in the skin degloving injury of the hand at one stage

目的 探讨足趾皮瓣瓦合组合移植一期修复全手套脱伤并拇手指再造的临床疗效.方法 采用(足母)甲皮瓣加第二趾胫侧皮瓣瓦合再造拇指,带足背皮瓣覆盖手背,(足母)趾腓侧皮瓣与第二趾甲皮瓣瓦合再造手指带足背皮瓣覆盖手背和股前外侧皮瓣覆盖手掌创面3例;采用双侧(足母)趾腓侧皮瓣加第二趾甲皮瓣瓦合双手指,带双足背皮瓣覆盖手背及股前外侧皮瓣覆盖手掌创面2例.结果 术后4例成活顺利,1例组合皮瓣成活,因示指指骨感染而将其切除后伤口愈合.随访半年以上3例,因手掌皮瓣臃肿行整形术,再造拇、手指外形良好,虎口开大4～5 cm,恢复了痛、温、触觉,再造拇、手指瓦合皮瓣两点分辨觉在5～10 mm,手掌10～15mm,修复拇手指均有2 kg以上提力,并有较为满意的外观.另2例时间短,其中1例指外形良好,手掌皮瓣臃肿,轻微抓握作用,虎口开大3 cm.另1例示指感染后畸形,虎口开大2.5 cm,有轻微夹持作用.结论 双足趾皮瓣瓦合移植在全手脱套伤中的拇手指再造改善指外形、保留足趾数是理想的方法。

Occupational Contact Dermatitis to Thiourea and Dimethylthiourea From Diazo Copy Paper

A 44-year-old construction designer developed acute dermatitis on his palms, dorsal side of hands, face and neck. According to the patient, the lesions were caused by the occupational daily contact with diazo copy paper. It contained thiourea and dimethylthiourea as antioxidants. Patch tests proved sensitization to diazo copy paper—exposed and unexposed—thiourea, dimethylthiourea, and to the ammonia salts used as developers. Thioureas reactions were intensified after the standard irradiation for photo-patch testing. Considering that thioureas and derivatives are used in almost all kinds of diazo photocopy paper, the authors believe that thiourea allergy from this source has virtually been overlooked.

Occupational Contact Dermatitis to Thiourea and Dimethylthiourea From Diazo Copy Paper

A 44-year-old construction designer developed acute dermatitis on his palms, dorsal side of hands, face and neck. According to the patient, the lesions were caused by the occupational daily contact with diazo copy paper. It contained thiourea and dimethylthiourea as antioxidants. Patch tests proved sensitization to diazo copy paper—exposed and unexposed—thiourea, dimethylthiourea, and to the ammonia salts used as developers. Thioureas reactions were intensified after the standard irradiation for photo-patch testing. Considering that thioureas and derivatives are used in almost all kinds of diazo photocopy paper, the authors believe that thiourea allergy from this source has virtually been overlooked.