Related Clues:

• Site of many a football injury
• Pants part with a patch, perhaps
• Arthroscopy site
• Oft-skinned joint
• Banjo prop, maybe
• Patella locale
• It's just below the thigh
• ___-slapper (funny joke)
• A tot may bounce on one
• Oft-skinned area
• "... with a banjo on my ___"
• Limb bender
• Last word in 'Oh! Susanna'
• Arm : elbow :: leg : ___
• It's capped