[Acute tibial tubercle avulsion fractures]

S Reuter, H Mellerowicz
Der Orthopäde 2016, 45 (3): 226-8, 230-2

BACKGROUND: The tear-off of the apophysis of the proximal tibia is a rare injury (< 1 % of all apophysal lesions). It mainly affects male adolescents (14,6 years). Main causes are concentric and eccentric stress during sport activity. Morbus Osgood-Schlater seems to be a predisposing factor.

AIM: Up-to-date survey of pathogenesis, diagnostics and treatment strategies.

MATERIAL AND METHODS: Literature research (level III and IV studies) as well as own results.

RESULTS: The affected patients are mostly male (97 %), type III fractures are most frequently seen (48 %). Accompanying injuries are not to be missed (10 %). The treatment usually consists of surgery by means of an open reposition and internal refixation, recently also minimal invasi. The results are mainly very good to good, approximately 95 % reach their old level of activity again. Almost one third of the patients develop a mostly slight complication.

CONCLUSION: The acute tear-off of the apophysis of the proximal tibia is an infrequent disease. In dislocated injuries the standard procedure is the open reposition and the internal fixation. Lesions within the knee are particularly to be expected in intraarticular fractures und must not be missed. A very good to good result is to be expected with correct treatment, momentous complications are all together rare.

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