Salt Lake City, Utah From the Division of Plastic Surgery and the Departments of Physical Therapy and Mechanical Engineering, University of Utah.
Plast Reconstr Surg. 2009 Nov;124(5):1393-1399. doi: 10.1097/PRS.0b013e3181b988aa.
Macromastia can be a morbid condition causing affected women to endure shoulder pain, back pain, intertrigo, and shoulder grooving from the bra straps. Subjective symptoms are effectively relieved by reduction mammaplasty surgery. Reliable objective evidence is limited in evaluating benefits for this patient population.
Eleven women undergoing reduction mammaplasty were evaluated before surgery and 3 months after surgery. Evaluation modeled maximal compressive forces at the low back during an unconstrained lifting task using inverse dynamics and measured the subjective level of disability using the Functional Rating Index.
The analysis of the kinematic and kinetic data demonstrated no significant difference in ankle, knee, and hip joint angles between pretests and posttests. In addition, the average maximum low-back compressive forces decreased 35 percent for the unconstrained lifting task, and the Functional Rating Index scores improved 76 percent following surgery. Greatest improvement was reported for the frequency of pain and travel.
Reduction mammaplasty surgery produced objective improvement in low-back compressive forces and patients' reported level of functional disability.
巨乳症可能是一种病态，使受影响的女性承受肩部疼痛、背部疼痛、间擦疹和肩带压痕等问题。乳房缩小整形术可有效缓解主观症状。但对于这类患者群体，可靠的客观证据在评估获益方面十分有限。
11 名接受乳房缩小整形术的女性在术前和术后 3 个月接受评估。评估采用逆动力学方法，对无约束举升任务中低背部的最大压缩力进行建模，并使用功能评定指数测量主观残疾程度。
对运动学和动力学数据的分析表明，术前和术后踝关节、膝关节和髋关节角度没有显著差异。此外，无约束举升任务中的低背部最大压缩力平均降低了 35%，术后功能评定指数评分提高了 76%。术后疼痛和旅行频率的改善最大。
乳房缩小整形术可降低低背部的压缩力，并改善患者报告的功能障碍程度。
