Well, I'm not sure of all the specific titles, but generally in oikawa knee injury fanfiction, you might find stories that center around his relationship with his coach during the injury. In some, the coach becomes a crucial figure in his recovery, like in 'Coach's Guidance through Injury'. These fanfictions often add a lot of depth to the character, showing his vulnerability and determination.
There are several oikawa knee injury fanfictions out there. Some explore the impact of the injury on his volleyball career. For example, in 'The Road to Recovery', it details his rehabilitation process, his fears of not being able to play at his best again, and how his friends and fans encourage him throughout. It also delves into his internal struggle between resting and pushing himself too hard.
One popular 'oikawa knee injury fanfiction' might be 'Healing the Star Player's Knee'. It focuses on his journey of recovery with a lot of emotional support from his teammates. Another could be 'Overcoming the Knee Injury' which shows how Oikawa battles through the physical and mental challenges of the injury.