Humerus Reaming Assemble the proximal reamer of the selected size to the reamer shaft (Figure 21) and ream the humeral metaphysis, using the K-wire as a guide. The reaming is completed once the collar of the reamer sits flush with the resected surface (Figure 22). Remove the reamer, leaving the K-wire in place. Complete the preparation of the metaphyseal portion of the humerus using the proximal compactor. Assemble the proximal compactor of the selected size to the compactor & positioning handle. Impact the proximal compactor using the k-wire as a guide until the compactor’s collar sits flush on the humeral resection.
Optional. If the stem entry point is closed due to the previous reaming step, remove the k-wire and align the mediolateral reference line marked previously on the bone along the proximal compactor’s slot, insert the checking rod into the dedicated hole to refresh the stem entry point (Figure 23). Remove the compactor by tapping it out using the handle and remove the k-wire.
Note. Be aware high impact force may cause fracture of the humerus.
Figure 21
Collar
Mediolateral reference slot
Figure 22
Figure 23
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