All heads of the deltoid come together to insert onto the deltoid tuberosity of the humerus. The posterior head originates from the posterior border of the spine of the scapula. The lateral head originates from the superior surface of the acromion process. The anterior head originates from the anterior surface of the lateral third of the clavicle. The deltoid, aptly named after the Greek letter delta, is a triangular-shaped muscle found over the glenohumeral joint and is composed of three different heads: anterior, lateral, and posterior. Additionally, the supraspinatus contributes to shoulder joint stability by providing resistance to gravitational forces acting on the joint and maintaining contact between the head of the humerus and the glenoid fossa. Past 15 degrees, it assists the deltoid with the abduction of the arm up to 90 degrees. It is responsible for the initiation of arm abduction by stabilizing the humeral head in the glenoid fossa and is in control of the motion up to the first 15 degrees of abduction. doi: 10.1016/j.otsr.2018.05.011.The supraspinatus muscle originates from the supraspinous fossa of the scapula, passes under the acromion, and inserts on the superior facet of the greater tubercle of the humerus. Orthopaedics & Traumatology, Surgery & Research. Bankart repair with "remplissage" for anterior shoulder instability with engaging Hill-Sachs lesion: a meta-analysis. Current Reviews in Musculoskeletal Medicine. Adolescent clavicle fractures: is there a role for open reduction and internal fixation. Open reduction internal fixation vs non-operative management in proximal humerus fractures: a prospective, randomized controlled trial protocol. Howard L., Berdusco R., Momoli F., et al. Measures of physical performance and muscle strength as predictors of fracture risk independent of FRAX, falls, and aBMD: a meta-analysis of the osteoporotic fractures in men (MrOS) study. Prosthesis designs and tuberosity fixation techniques in reverse total shoulder arthroplasty: influence on tuberosity healing in proximal humerus fractures. The fixation effect of new shoulder joint abduction frame is significant after arthroscopic surgery, and patients can carry out functional training as early as possible, which is helpful to promote fracture healing, relieve pain, and restore shoulder joint function with high safety. The excellent or good rate of shoulder joint activity was 94.74% (54/57) in the abduction frame group, significantly higher than that in the sling group (80.36% 45/56) ( P < 0.05). Neer scores were increased, while VAS scores were decreased in the two groups in the third or sixth months after surgery with significant differences in the abduction frame group ( P < 0.05). After 6 months of follow-up, 2 cases were lost to follow-up in the abduction frame group and 3 cases in the sling group. After 4 or 6 weeks of surgery, the levels of serum osteoprotegerin (OPG) and carboxyterminal propeptide of type I procollagen (PICP) were increased but the levels of tartrate-resistant acid phosphatase-5B (TRAP-5B) were decreased in the two groups with more significant differences in the abduction frame group ( P < 0.05). The postoperative fracture healing time and start time of shoulder joint training were shorter, and the humeral varus angle and femur height loss were smaller in the abduction frame group than in the sling group ( P 0.05). Finally, the prognostic indicators, complications, and serum bone metabolism levels in 4 and 6 weeks after surgery, shoulder joint function (Neer score), VAS score before surgery and after 3 and 6 months of surgery, and excellent or good rate of shoulder joint activity after 6 months of surgery were compared between the two groups. New shoulder joint abduction frame was used for shoulder joint fixation in the abduction frame group, and sling was used for shoulder joint fixation in the sling group after surgery. The patients in the two groups were subjected to arthroscopic shoulder surgery. This work is organized to analyze the clinical effects of new shoulder joint abduction frame on the bone metabolic markers, shoulder joint function, and visual analogue scale (VAS) of humeral fracture patients undergoing arthroscopic surgery.ฤก18 patients with humeral fracture who planned to undergo shoulder surgery in our hospital from November 2018 to June 2021 were selected as the study objects and were divided into two groups according to the random number method, with 59 patients in each group.
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