Thank you for your question regarding options for correcting a C-shaped or crooked nasal dorsum in rhinoplasty. While spreader grafts are commonly used to address such deformities, other surgical techniques may also be effective, depending on the specific anatomy and needs of the patient. Alternative methods include the use of cartilage grafting techniques, such as onlay grafts or structural grafts, to reinforce and reshape the nasal framework. Additionally, techniques like osteotomies (controlled bone cuts) can help realign the nasal bones to create a straighter appearance. Suturing techniques may also be employed to adjust and stabilize the nasal cartilage without the need for spreader grafts. The appropriate approach depends on a detailed evaluation of the nasal structure and the desired outcome. I recommend consulting with a facial plastic surgeon who can assess your individual case and advise on the most suitable method for achieving a balanced and natural result. I hope this information is helpful, and I encourage you to discuss these options with your surgeon for further guidance.