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전상향 파열 환자가 재활운동으로 가동범위를 회복하지 못하는 이유
박동오(Dong-Oh Park),신충수(Choongsoo S. Shin) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Rotator cuff refers group of muscles surrounding shoulder joint which are supraspinatus, infraspinatus, subscapularis and teres minor. Tear of these muscles results in abnormal kinematics of shoulder joint. Previous study reported anterosuperior tear patients did not recover range of motion (ROM) despite rehabilitation. Purpose of this study is to find out why rehabilitation failed on anterosuperior tear patients. Two types of shoulder models were constructed: intact and anterosuperior (supraspinatus and infraspinatus) tear model. Anterosuperior tear model’s elevation ROM was observed in 3 different conditions: enhancing deltoids, teres minor and both muscles. Results showed that enhancing only teres minor increased ROM. However, enhancing only deltoids and enhancing both deltoids and teres minor did not, and impingement occurred. These results implied strengthening deltoids and teres minor in equal ratio could not be appropriate rehabilitation for anterosuperior tear patients.
상부 파일런 재건술을 통한 광범위 회전근개 파열 환자의 상완골 상부 전이량 감소
박동오(Dong-Oh Park),신충수(Choongsoo S. Shin) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.11
The purpose of this study is to suggest novel surgical technique for irreparable rotator cuff tear patients; superior pylon reconstruction (SPR) by comparing its surgical effect with superior capsular reconstruction (SCR) by a simulation study. We constructed total 4 models; intact, tear, SCR and SPR models based on MRI. Total 10 male subjects (age, 25±4 year old; weight, 66±10 kg; height, 170±5cm) implemented shoulder abduction in scapular plane. Range of motion (ROM), acromio humeral distance (AHD), and superior-inferior (SI) translation of humerus of SPR and SCR models were compared. There’s no significant difference in ROM between two models, however in AHD, SPR model increased by 0.4 mm (p = 0.001) compared with SCR model. SPR models showed decreased maximum superior translation of humerus by 1.0 mm (p = 0.001) compared with SCR model. These results implied that SPR could restore shoulder joint kinematics of massive irreparable rotator cuff tear patients as effectively as SCR.
상부 파일런 재건술을 통한 광범위 회전근개 파열 환자의 상완골 상부 전이량 감소
박동오(Dong-Oh Park),신충수(Choongsoo S. Shin) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.11
The purpose of this study is to suggest novel surgical technique for irreparable rotator cuff tear patients; superior pylon reconstruction (SPR) by comparing its surgical effect with superior capsular reconstruction (SCR) by a simulation study. We constructed total 4 models; intact, tear, SCR and SPR models based on MRI. Total 10 male subjects (age, 25±4 year old; weight, 66±10 kg; height, 170±5cm) implemented shoulder abduction in scapular plane. Range of motion (ROM), acromio humeral distance (AHD), and superior-inferior (SI) translation of humerus of SPR and SCR models were compared. There’s no significant difference in ROM between two models, however in AHD, SPR model increased by 0.4 mm (p = 0.001) compared with SCR model. SPR models showed decreased maximum superior translation of humerus by 1.0 mm (p = 0.001) compared with SCR model. These results implied that SPR could restore shoulder joint kinematics of massive irreparable rotator cuff tear patients as effectively as SCR.