Fig. 1From: Alternatives to free flap surgery for maxillofacial reconstruction: focus on the submental island flap and the pectoralis major myocutaneous flapCharlson comorbidity index; incorporated diseases, weighting range from 1 to 6 points. To adjust for age, every decade after 40Â years is reflected by 1 point (maximum weight for age: 4 points)Back to article page