Retrospective cohort of 169 young athletes undergoing ACL reconstruction with bone-patellar tendon-bone autograft. The study asks whether timing of surgery from injury date — and the postoperative rehabilitation protocol — determines the risk of arthrofibrosis and early functional recovery at 13 weeks.
In the late 1980s, the prevailing instinct was to operate on ACL tears as soon as possible — especially in high-level athletes. This paper challenged that directly, showing that urgency increases risk without improving stability.
The core decision rule from this paper: when an ACL tear is confirmed, target reconstruction at 3+ weeks from injury. Use that window for preoperative physical therapy focused on restoring extension, controlling swelling, and reactivating the quadriceps.
If scheduling forces surgery between 8–21 days, accelerated rehabilitation (full passive extension, early weightbearing, cryotherapy) is not optional. It is what separates a ~4% arthrofibrosis rate from a rate comparable to immediate surgery.
Meniscus repair at the time of delayed reconstruction is not a contraindication. Group III had the highest meniscus repair rate and the lowest arthrofibrosis rate. Do not let a concurrent meniscal repair drive you toward earlier surgery.
This paper established the conceptual foundation for the modern "prehabilitation" period before ACL reconstruction and remains the primary evidence behind the guideline to wait for the acute inflammatory phase to resolve before operating.
Retrospective cohort of 169 young athletes undergoing ACL reconstruction with bone-patellar tendon-bone autograft. The study asks whether timing of surgery from injury date — and the postoperative rehabilitation protocol — determines the risk of arthrofibrosis and early functional recovery at 13 weeks.
In the late 1980s, the prevailing instinct was to operate on ACL tears as soon as possible — especially in high-level athletes. This paper challenged that directly, showing that urgency increases risk without improving stability.
The core decision rule from this paper: when an ACL tear is confirmed, target reconstruction at 3+ weeks from injury. Use that window for preoperative physical therapy focused on restoring extension, controlling swelling, and reactivating the quadriceps.
If scheduling forces surgery between 8–21 days, accelerated rehabilitation (full passive extension, early weightbearing, cryotherapy) is not optional. It is what separates a ~4% arthrofibrosis rate from a rate comparable to immediate surgery.
Meniscus repair at the time of delayed reconstruction is not a contraindication. Group III had the highest meniscus repair rate and the lowest arthrofibrosis rate. Do not let a concurrent meniscal repair drive you toward earlier surgery.
This paper established the conceptual foundation for the modern "prehabilitation" period before ACL reconstruction and remains the primary evidence behind the guideline to wait for the acute inflammatory phase to resolve before operating.