Concomitant cruciate and meniscus injuries of the knee are generally associated with acute trauma and commonly treated with surgical intervention. Comorbidities (simultaneous presence of two or more medical conditions) may be acquired from changes in activity levels and lifestyle after an injury and/or treatment. This study aimed to compare differences in comorbidity proportions between surgical and nonsurgical approaches in Military Health System beneficiaries who had concurrent cruciate and meniscus injuries. The retrospective case control design included 36-month data that were analyzed to reflect 12 months prior to injury/surgery and 24 months after injury/surgery. A comparison of differences within and between groups in surgical and nonsurgical approaches was calculated and logistic regression was used to determine if surgery increased or decreased the odds of comorbidities at 24 months. In our sample of 2,438 individuals with concurrent meniscus and cruciate injury, 79.1% (n = 1,927) received surgical intervention and 20.9% (n = 511) elected for nonoperative management. All comorbidities demonstrated significant within-group differences from pre- to postsurgery for those with a surgical intervention; approximately, half the comorbidities increased (i.e., concussion or traumatic brain injury, insomnia, other sleep disorders, anxiety, posttraumatic stress disorder, and tobacco abuse disorder), whereas the other half decreased (i.e., chronic pain, apnea, cardiovascular disease, metabolic syndrome, mental health other, depression, and substance abuse disorders). The odds of acquiring a comorbid diagnosis after surgery reflected the bivariate comparisons with half increasing and half decreasing in odds. To our knowledge, this is the first study to explore comorbidity changes with a control group for individuals with concurrent meniscus and cruciate injuries.

伴随的膝关节交叉和半月板损伤通常与急性创伤有关，通常通过外科手术治疗。受伤和/或治疗后活动水平和生活方式的变化可能会导致合并症（同时存在两种或多种疾病）。本研究旨在比较同时发生交叉和半月板损伤的军事卫生系统受益人的手术和非手术方法之间合并症比例的差异。回顾性病例对照设计包括 36 个月的数据，分析这些数据以反映受伤/手术前 12 个月和受伤/手术后 24 个月。计算了手术和非手术方法组内和组间差异的比较，并使用逻辑回归确定手术在 24 个月时是否增加或减少了合并症的几率。在我们的 2,438 名并发半月板和交叉损伤患者的样本中，79.1%（n  = 1,927) 接受了手术干预，20.9% ( n = 511) 被选为非手术治疗。对于接受手术干预的患者，所有合并症在手术前后均表现出显着的组内差异；大约一半的合并症增加（即脑震荡或外伤性脑损伤、失眠、其他睡眠障碍、焦虑、创伤后应激障碍和烟草滥用障碍），而另一半减少（即慢性疼痛、呼吸暂停、心血管疾病、代谢综合征、心理健康其他、抑郁症和药物滥用障碍）。手术后获得合并症诊断的几率反映了双变量比较，几率增加一半，一半减少。据我们所知，这是第一项与对照组一起探索并发半月板和交叉损伤个体的合并症变化的研究。