Abstract: Objective To compare the clinical efficacy of distal clavicular locking plate and clavicular hook locking plate in the treatment of adult Neer type Ⅱ distal clavicular fracture. Methods A total of 63 patients with Neer Ⅱ distal clavicle fracture were retrospectively analyzed, including 31 patients in the distal clavicle locking plate group and 32 patients in the clavicle hook locking plate group. The clinical effects of the two groups were compared in terms of the length of surgical incision, postoperative pain, postoperative complications and shoulder joint function. Results The incision length was smaller in the distal clavicular locking plate group than that of the clavicular locking plate group. Bone healing was achieved in the both groups after 3 months. Three months after surgery, the postoperative pain score and shoulder function were better in the distal clavicular locking plate group than those of the clavicular hook locking plate group. Six months after surgery, there were no significant differences in postoperative pain score and shoulder function between the two groups. There were no obvious complications in the distal clavicle locking plate group, and 4 cases of subacromial bone erosion and 10 cases of shoulder pain occurred in the clavicular hook locking plate group. The complication rate was significantly lower in the distal clavicular locking plate group than that of the clavicular hook locking plate group (P < 0.01). Conclusion For adult Neer Ⅱ distal clavicle fracture, the use of distal clavicle locking plate internal fixation has better efficacy and fewer complications, which is conducive to the rapid recovery of shoulder joint function. The distal clavicle locking plate is preferred in clinical work.

Key words: fracture fixation, internal, clavicle, Neer Ⅱ distal clavicle fracture, distal clavicle locking plate, clavicle hook locking plate