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Craniomaxillofacial Reconstructive and Corrective Bone Surgery - part 6

Theo dõi (tháng) 3 24 *** 66 22 mở tối đa (mm) 33 05/04 27 30 Vị trí của F condyle di dời đúng đúng đúng dời trái phải FGH bên trái bên phải FMM 45 37 20 PA PA ** RA ** 40 RA 12 *** 35 65 48 15 đúng đúng đúng đúng di dời đúng (thủng) - - Gr II Gr II-IV Gr III Gr III-IV tái hấp thu của sự hình thành hố xương | 33. Problems Related to Mandibular Condylar Prosthesis 383 e Figure 33.5 Continued. e Anteroposterior detailed image of right joint 10 months after arthroplasty. Perforation is now evident. f Situation 4 months after removal of right prosthesis and costochondral arthroplasty. MIO 22 mm. Left side is still unaffected. Table 33.2 TMJ ankylosis. Patient data and follow-up. Patient Sex Age Maximum Heterotopic bone formation Diagnosis Follow-up months opening mm Position of condyle Resorption of fossa A M 56 PA 3 33 displaced - Gr I B F 49 tumor 24 4-5 correct Gr IV C M 20 PA 66 27 correct - Gr II D F 69 RA 22 30 -left displaced - right correct Gr II-III E F 40 RA 12 15 -left correct right correct perforation F F 45 PA 35 25 correct Gr II G M 37 PA 65 30 correct Gr II-IV H M 20 RA 48 18 -left displaced Gr III right correct Gr III-IV PA posttraumatic ankylosis RA rheumatic ankylosis The amount of bone increased with time in three patients Reankylosis after costochondral arthroplasty Prosthesis removed 384 C. Lindqvist A.-L. Soderholm and D. Hallikainen b c d Figure 33.6 a A 56-year-old woman with severe rheumatoid arthritis. b Five years later total destruction of both condyles. No movement in joints. c Bilateral TMJ arthroplasty showing that both condylar heads lie anteriorly to the articular eminence. Significant pain to the left. d Situation after left rearthroplasty. Condyle is now in correct position. The prebent angle of the prosthesis was straightened. Because of symptomless right joint no reoperation has been performed. 33. Problems Related to Mandibular Condylar Prosthesis 385 Table 33.3 Malignant tumors and trauma. Patient data and follow-up. Patient Sex Age Maximum Heterotopic bone formation Diagnosis Follow-up months opening mm Position of condyle Resorption of fossa A M SCC plate 1 77 26 40 correct - Gr I plate 2 79 40 42 displaced - Gr I B M 45 SCC 18 27 correct Gr I C M 56 SCC 57 45 displaced - Gr II D M 89 SCC 30 38 correct E F 77 SCC 4 25 correct - F M .