Clinical Application Of Self-made M Splint In Distal Radius Extension Fracture

Objective:To compare the stability of self-made M splint and traditional splint in the treatment of distal radius extension fracture,and to observe whether the recovery of wrist and metacarpophalangeal joint function after the removal of metacarpophalangeal joint fixation by M splint is better than that of tradition-al splint,so as to provide theoretical basis for the clinical promotion of M splint.Methods:From February 2021 to October 2022,60 patients who met the diagnostic criteria and inclusion criteria of distal radius extension fracture were selected from the emergency and orthopedic clinics of the First Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine.After manual reduction,the treatment group was fixed with M splint,and the control group was fixed with traditional splint.The stability of splint treatment effect,X-ray data,VAS score,Gartland-Werley wrist function score,TAM metacarpo-phalangeal joint function evaluation,fracture healing time and secondary displacement were compared between the two groups.Statistical data were analyzed by SPSS26.0 statistical software.Results:1.Before treatment,there was no significant statistical difference in age,gender,injury site,cause of disease and other general data of all participants(P>0.05),indicating that the two groups of patients were comparable.2.There was no significant difference between the two groups in fracture healing time,image data and VAS score(P>0.05),indicating that the two fixation methods had the same degree of fixation reliability and the same effect in relieving pain.3.Gartland-Werley wrist score: After 12 weeks of treatment,the excellent and good rate of wrist function score was compared between the two groups.The excellent and good rate of the control group was 80.00 %,and the excellent and good rate of the treatment group was 93.33 %,with statistical significance(P<0.05),indicating that the wrist function score of the M splint treatment group was slightly higher than that of the traditional splint control group.It is proved that the M splint promotes the improvement of wrist function with a wide range of activities of the metacarpophalangeal joint in the middle and late treatment stage of fracture.4.TAM metacarpophalangeal joint function assessment: The contracture of the accessory ligament of metacarpophalangeal joint after removal of external fixation was compared between the two groups,and the excellent and good rates of metacarpophalangeal joint function of 2,3,4 and 5 patients were compared between the two groups at 6,8 and 12 weeks.The excellent and good rates were in the treatment group at 6 weeks(73.33%),8 weeks(80.00%)and 12 weeks(93.33%).The excellent and good rates in control group were 63.33%,70.00% and 90.00% at 8 weeks,and the differences were statistically significant(P<0.05).By comparing the function scores of metacarpophalangeal joint between the two groups,it was indicated that the M splint treatment group reduced the contractility of the collateral ligament of metacarpophalangeal joint and avoided the incidence of joint stiffness by regulating the tension of the collateral ligament of metacarpophalangeal joint.Conclusion:Compared with traditional splint external fixation,M splint can avoid joint stiffness,reduce fracture complications and restore hand function faster according to the movement law of collateral ligament of metacarpophalangeal joint.M splint is worthy of clinical application.