Gamification in Therapeutic Rehabilitation of Distal Radial and Ulnar Fracture: A Case Report

Surface electromyography character of upper limb muscle after open reduction combine with ulnar osteotomy in children with neglected Monteggia fracture

Objective

This study aims to investigate the surface electromyography (sEMG) characteristics of upper limb muscles in children with neglected Monteggia fracture after open reduction of radial head dislocation and ulna osteotomy and bone grafting internal fixation, and to understand the recovery of muscle activity in children after operation, provide reference for clinical rehabilitation.

Methods

A retrospective analysis was conducted on sixteen children with neglected Monteggia fracture who underwent ulna osteotomy at our hospital from January 2021 to August 2022. The biceps brachii, triceps brachii, flexor carpi radialis, and extensor carpi ulnaris muscle activities were recorded during grip strength tests, flexion and extension of elbow joint while holding a 1 kg dumbbell, as well as gripping tasks. The root mean square (RMS) values of sEMG signals, co-contraction ratio, and elbow joint function scores were compared between pre- and post-operation periods as well as between the affected side and unaffected side.

Results

The preoperative maximum grip strength, as well as the average RMS values of flexor carpi radialis and average RMS value of extensor carpi ulnaris on the affected side were significantly lower. After surgery, both the maximum RMS value of biceps brachii and maximum and average RMS value of extensor carpi ulnaris on the affected side remained lower. Prior to surgery, when performing elbow flexion and extension tests while holding a 1 kg dumbbell, both mean RMS values of biceps brachii and flexor carpi radialis on the affected side were smaller. However, after surgery, there was an increase in mean RMS values of biceps brachii on the affected side. Furthermore, postoperative elbow function scores were significantly higher than preoperative scores.

Conclusion

Open reduction of radial head dislocation combined with ulna osteotomy and bone grafting can achieve good functional activities in the treatment of neglected Monteggia fractures in children. The EMG activity of the extensor carnosus ulnalis muscle on the affected side related to grip strength was low, and the desired effect was not achieved within the expected time.

Wearable rehabilitation wristband for distal radius fractures

Background

Distal radius fractures are a common type of fracture. For patients treated with closed reduction with splinting, a period of rehabilitation is still required after the removal of the splint. However, there is a general lack of attention and low compliance to rehabilitation training during this period, so it is necessary to build a rehabilitation training monitoring system to improve the efficiency of patients' rehabilitation.

Methods

A wearable rehabilitation training wristband was proposed, which could be used in the patient's daily rehabilitation training scenario and could recognize four common wrist rehabilitation actions in real-time by using three thin film pressure sensors to detect the pressure change curve at three points on the wrist. An algorithmic framework for classifying rehabilitation training actions was proposed. In our framework, an action pre-detection strategy was designed to exclude false detections caused by switching initial gestures during rehabilitation training and wait for the arrival of the complete signal. To classify the action signals into four categories, firstly an autoencoder was used to downscale the original signal. Six SVMs were then used for evaluation and voting, and the final action with the highest number of votes would be used as the prediction result.

Results

Experimental results showed that the proposed algorithmic framework achieved an average recognition accuracy of 89.62%, an average recognition recall of 88.93%, and an f1 score of 89.27% on the four rehabilitation training actions.

Conclusion

The developed device has the advantages of being small size and easy to wear, which can quickly and accurately identify and classify four common rehabilitation training actions. It can easily be combined with peripheral devices and technologies (e.g., cell phones, computers, Internet) to build different rehabilitation training scenarios, making it worthwhile to use and promote in clinical settings.

Gamification for Distal Radius Fracture Rehabilitation: A Randomized Controlled Pilot Study

Introduction

Gamification is a novel interventional approach to functional recovery and rehabilitation. A significant impact has been observed with the application of gamification on non-traumatic conditions and chronic neurological and musculoskeletal illnesses; however, the implication of gamification on the functional recovery of patients with distal radius fractures (DRF) is yet to be explored. 

Methodology

This pilot study included 20 post-DRF patients aged 18-65 years with unilateral DRF, managed with closed reduction and K-wire internal fixation. The patients were assigned to group A (gamification) and group B (conventional rehabilitation) in a 1:1 ratio. Group A patients played Racket: NX game, Until you fall game, and Holofit game on Oculus Quest head-mounted display (HMD) (Oculus, USA), while group B patients received a conventional rehabilitation program. Both groups underwent a rehabilitation program for 60 min/day, five days a week, for four weeks. The visual analogue scale (VAS), universal goniometer, Jamar dynamometer, and Disabilities of the Arm, Shoulder, and Hand (DASH) questionnaire were used as outcome measures at baseline, at the end of the second week, and at the end of treatment.

Results

There were significant improvements in pain, range of motion (ROM), grip strength, and functional independence in both groups. However, improvements in hand function and functional independence were significantly greater in the gamification group than in the conventional physiotherapy rehabilitation group.

Conclusion

The study concluded that gamification appears to have a significant impact on post-DRF rehabilitation in terms of pain, ROM, grip strength, and functional independence. Further research with larger sample sizes is required to confirm the preliminary findings.