A The Bi Ellipsoidal Cmc Joint And Arthrodesized Mcp Joint Mounted On (a) the bi ellipsoidal cmc joint and arthrodesized mcp joint mounted on the tu hand, shown with the thumb in its neutral position. (b) the same prototype being used to grasp a. As the phalanges around the mcp joint are fused into a single linkage as inspired by arthrodesis, the mcp joint's location is highlighted in both with a red circle. (a) a 1 dof hinge.
A The Bi Ellipsoidal Cmc Joint And Arthrodesized Mcp Joint Mounted On Inclusion criteria were arthrodesis performed using a t plate and screws for thumb cmc joint osteoarthritis and follow up of at least 5 years. we identified 42 patients with 47 arthrodeses. in 41 thumbs (35 patients), the reason for surgery was purely osteoarthritis. The current study aimed to evaluate the ideal thumb ip fusion angle in patients with thumb carpometacarpal (cmc) osteoarthritis (oa). twenty seven patients with thumb cmc oa were evaluated; five patients had bilateral pathology, for a total of thirty two thumbs included. This report introduces a minimally invasive procedure for cmc joint arthrodesis using headless screws and arthroscopic guidance. we also present the long term results of patients after using the technique. We describe a minimally invasive arthrodesis technique using an arthroscope and fixation with headless screws. from february 2007 to march 2010, we treated 11 thumbs in 11 pa tients with posttraumatic carpometacarpal joint osteoarthritis. all patients reported pain at the thumb carpometacarpal joint.
Ellipsoidal Joint By C Ferguson This report introduces a minimally invasive procedure for cmc joint arthrodesis using headless screws and arthroscopic guidance. we also present the long term results of patients after using the technique. We describe a minimally invasive arthrodesis technique using an arthroscope and fixation with headless screws. from february 2007 to march 2010, we treated 11 thumbs in 11 pa tients with posttraumatic carpometacarpal joint osteoarthritis. all patients reported pain at the thumb carpometacarpal joint. The thumb carpometacarpal (cmc) joint accounts for up to 50% of hand function and is the second most common location for osteoarthritis (oa) of the hand.1,2 affecting up to 25% of women and 8% of men, basilar thumb arthritis results in reduced joint stability, pain, and reduced capacity for daily activities.3 the thumb cmc joint’s anat. Arthrodesis of the thumb cmc joint has been shown to provide reliable pain relief and strength for end stage arthritis.10 however, as demonstrated with patient a, concomitant ligamentous injuries to the thumb mcp joint are not uncommon in this patient population, and arthrodesis of both the thumb mcp and cmc joints drastically decreases function. Although lrti is the most common surgical treatment, cmc arthrodesis has been performed because of its reported advantages. this systematic review and meta analysis compared the differences between cmc arthrodesis and lrti to better inform surgeons and patients when they are making treatment decisions. The thumb cmc joint is a biconcave convex (saddle) joint, permitting motion in three planes: flexion extension, abduction adduction, and pronation supination. these multiplanar motions allow for power grip, power pinch, opposition, and delicate precision pinch.