When is surgery necessary for a partial tendon laceration?

More thn 40%: This is not an absolute answer but typically when the tendon is lacerated more than 40% or is worsening, deteriorating or may be causiing a problem, surgery may be considered.

Triggering: Mainly to avoid triggering or entrapment issues in the future.

Consult hand surgeon: Typically must be explored and evaluated by a hand surgeon. Repair will be based on area of injury, percent of disruption and what the edges look like.

50%: if the tendon is more than 50% lacerated then it would warrant fixation