Try a carbon ribbon 'round the old hurt knee (and shoulder)
D000293:Adolescent; D000328:Adult; D000818:Animals; D001672:Biocompatible Materials; D002244:Carbon; D002986:Clinical Trials as Topic; D004285:Dogs; D006801:Humans; D007718:Knee Injuries / Q000601:surgery*; D008023:Ligaments, Articular / Q000293:injuries*; D008875:Middle Aged; D019736:Prostheses and Implants; D012782:Shoulder / Q000601:surgery; D000070599:Shoulder Injuries; D013708:Tendon Injuries / Q000601:surgery*
D001672:Biocompatible Materials; D002244:Carbon