Fifty-six consecutive knees were operated on for single compartment
disease using the Marmor modular knee with a minimum follow-up of four
years. The information obtained indicates that single compartment
replacement is valuable in restoring function and relieving pain in a high
percentage of patients. There was no evidence of late degeneration of the
successful results at the time of writing. No difference in the results
obtained with medial or lateral compartment replacement has been noted.
Degeneration of the compartment not operated on has not been a problem.
Unicompartmental replacement is an excellent procedure in the elderly
patient who has osteoarthritis of the knee with varus or valgus
deformity.