The Veteran's chronic sprain and degenerative osteoarthritis of the right knee had its onset during service, and the Board finds that service connection is warranted.

The Veteran's appeal is remanded due to the need for a retrospective opinion on the severity of his left knee disability without considering the ameliorative effects of medication.

The Board denied service connection for multiple conditions, including right hip disorder, genitourinary disorders, loss of sense of smell, and others, finding no evidence linking these conditions to the Veteran's military service or toxic exposure at Camp Lejeune.

The Board has remanded the case to consider whether the Veteran is unemployable due to service-connected disabilities on an extraschedular basis. The Veteran's long history of working in a position requiring significant ambulation, combined with his left ankle disability, makes it reasonably possible that he cannot maintain substantially gainful employment.

The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.,The Veteran's claims for service connection are being remanded due to the need for additional medical examinations and evaluations.