Locking Plate for Proximal Humeral Fracture in the Elderly Population: Serial Change of Neck Shaft Angle
|학술지명||Clinics in Orthopedic Surgery||ISSN||2005-291X|
|저자||Aditya C Pawaskar, KeeWon Lee, JongMin Kim, JinWoong Park, Iman W Aminata, HonJun Jung , JaeMyeung Chun, In-Ho Jeon|
agreeBackground: We conducted this radiographic study in the elderly population with proximal humeral fracture aiming to evaluate 1) the serial changes of neck-shaft angle after locking plate fixation and 2) find relationship between change in neck shaft angle and various factors such as age, fracture pattern, severity of osteoporosis, medial support and initial reduction angle.
Methods: Twenty-five patients who underwent surgical treatment for proximal humeral fracture with locking plate between September 2008 and August 2010 are included. True anteroposterior and axillary lateral radiographs were made postoperatively and at each follow-up visit. Measurement of neck shaft angle was done at immediate postoperative, 3 months postoperative and a final follow-up (average, 11 months; range, 8 to 17 months). Severity of osteoporosis was assessed using cortical thickness suggested by Tingart et al.
Results: The mean neck shaft angles were 133.6o (range, 100o to 116o) at immediate postoperative, 129.8o (range, 99o to 150o) at 3 months postoperative and 128.4o (range, 97o to 145o) at final follow-up. The mean loss in the neck-shaft angle in the first 3 months was 3.8o as compared to 1.3o in the period between 3 months and final follow-up. This was statistically significant (p = 0.002), indicating that most of the fall in neck shaft angle occurs in the first three months after surgery. Relationship between neck shaft angle change and age (p = 0.29), fracture pattern (p = 0.41), cortical thickness (p = 0.21), medial support (p = 0.63) and initial reduction accuracy (p = 0.65) are not statistically significant.
Conclusions: The proximal humerus locking plate maintains reliable radiographic results even in the elderly population with proximal humerus fracture.
|keyword||Proximal humeral fracture, Neck shaft angle, Elderly population, Locking plate|
|과제명||바이오닉 인터페이스 기반 운동의도 인식 및 감각전달 기술 개발|