Brief biomechanical analysis on the walking of spinal cord injury patients with a lower limb exoskeleton robot

Author(s):  
Jun-Young Jung ◽  
Hyunsub Park ◽  
Hyun-Dae Yang ◽  
Mingi Chae
Author(s):  
Akbar Hojjati Najafabadi ◽  
Saeid Amini ◽  
Farzam Farahmand

Physical problems caused by fractures, aging, stroke, and accidents can reduce foot power; these, in the long term, can dwindle the muscles of the waist, thighs, and legs. These conditions provide the basis for the invalidism of the harmed people. In this study, a saddle-walker was designed and evaluated to help people suffering from spinal cord injury and patients with lower limb weakness. This S-AD works based on body weight support against the previously report designs. This saddle-walker consisted of a non-powered four-wheel walker helping to walk and a powered mechanism for the sit-to-stand (STS) transfer. A set of experiments were done on the STS in the use of the standard walker and the saddle-assistive device(S-AD). A comparison of the results showed that this device could reduce the vertical ground reaction force (GRF) of the legs up to 70%. Using this device could help a wide range of patients with lower limb weakness and SCI patients in changing from sitting to standing.


Author(s):  
Magdalena Mackiewicz-Milewska ◽  
Małgorzata Cisowska-Adamiak ◽  
Katarzyna Sakwińska ◽  
Iwona Szymkuć-Bukowska ◽  
Iwona Głowacka-Mrotek

Diagnosis of the cause of massive edema of the lower limbs in patients after spinal cord injury (SCI) can be difficult because of loss of pain sensation, commonly occurring in this group of patients. This paper reviews several different pathologies that can lead to lower-limb edema and the associated diagnostic difficulties. We present four cases of patients with massive edemas of lower limbs at different times after SCI undergoing treatment in the Department of Rehabilitation, University Hospital in Bydgoszcz, Poland. All patients had a lack of pain sensation in the lower limbs and significantly elevated levels of D-dimer. In two cases, deep vein thrombosis (DVT) and intramuscular hematomas (IHs) were diagnosed. IHs were probably a consequence of antithrombotic treatments implemented due to the occurrence of DVT. Heterotopic ossification (HO) was diagnosed in a third case, and, in another patient, who was hospitalized for the longest period after injury, we found humeral bone fractures. Heterotopic ossification, intramuscular haematomas, and bone fractures of the lower limb can mimic DVT. Careful observation of the edema evolution is recommended, as the onset of new symptoms may indicate a different cause of edema from that initially established.


Author(s):  
Batra Amit ◽  
Prakash Om ◽  
Jindal Rajeshwari ◽  
Batra Shivra

Background: Most common cause of spinal cord injury in India is fall from height followed by road accidents which may lead to incomplete or complete disruption of neural signal transmission across and below the level of injury. Spasticity is a common but not an inevitable complication following spinal cord injury. Study Objective: The present study tried to explore the correlation between the lower limb spasticity following spinal cord injury and the metabolic markers. Study design: Hospital-based cross-sectional study. Material and Methods: Fifty patients recruited from Department of Physical Medicine and Rehabilitation, Sawai Man Singh Hospital, Jaipur (Raj.), were categorized into mild (16),moderate (11), and severe (23)spastic groups based on assessment of  ankle/knee extensor muscle group spasticity using the modified Ashworth scale. The metabolic profile markers such as Total Cholesterol (TC), Low-density Lipoprotein (LDL), High-Density Lipoprotein (HDL), Triglyceride (TG) and Fasting Plasma Glucose (FPG) were estimated and compared between the three groups. Results: The triglycerides, total cholesterol, low density lipoproteins and the fasting plasma glucose level were significantly negatively correlated with the grading of spasticity in lowerlimbs (P <0.001). The high density lipoproteins level was higher in a severe spastic group as compared to the mild and moderate spastic groups; but this result was statistically non-significant (P=0.14). Conclusion: Spasticity in motor complete SCI may have beneficial effects in preserving glucose homeostasis and defending rise in adiposity, rationalizing the need for its judicious management to maintain the crucial balance between its beneficial and problematic effects. Keywords: Spasticity, Modified Ashworth score, Spinal cord injury, lipid profile, fasting plasma glucose.


2019 ◽  
Vol 19 (08) ◽  
pp. 1940060
Author(s):  
XINGANG BAI ◽  
XIANG GOU ◽  
WENCHUN WANG ◽  
CHAO DONG ◽  
FANGXU QUE ◽  
...  

The objective of this research was to evaluate the effectiveness and safety of Lower Extremity Exoskeleton Robot improving walking function and activity in patients with complete spinal cord injury. A prospective, open and self-controlled trial was conducted which include eight patients with complete spinal cord injury accepted Lower Extremity Exoskeleton Robot training with Aider 1.0 and Aider 1.1 for 2 weeks. The 6[Formula: see text]min Walk Test (6MWT), 10[Formula: see text]m Walk Test (10 MWT), Hoffer walking ability rating, Lower Extremity Motor Score (LEMS), Spinal Cord Independence Motor (SCIM), Walking Index for Spinal Cord Injury Version II (WISCI II) were recorded before, 1 week and 2 weeks after training. During the training, the incidence of adverse events (AE), the incidence of serious adverse events (SAE), the incidence of device defects and other safety indicators were observed. Compared with the pre-training, indicators (6MWT, 10MWT, Hoffer walking ability rating, WISCI II) were significantly different after 1 week of training and after 2 weeks of training. Four adverse events occurred during the training period and the incidence of adverse events was 50%. And there was no SAE or device defects. Therefore, it is safe and effective to use the lower extremity exoskeleton robot to complete the walking ability of patients with complete spinal cord injury.


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