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04.03.2017 | Knee | Ausgabe 12/2017

Knee Surgery, Sports Traumatology, Arthroscopy 12/2017

Arthrofibrosis after ACL reconstruction is best treated in a step-wise approach with early recognition and intervention: a systematic review

Knee Surgery, Sports Traumatology, Arthroscopy > Ausgabe 12/2017
Seper Ekhtiari, Nolan S. Horner, Darren de SA, Nicole Simunovic, Michael T. Hirschmann, Rick Ogilvie, Rebecca L. Berardelli, Danny B. Whelan, Olufemi R. Ayeni
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1007/​s00167-017-4482-1) contains supplementary material, which is available to authorized users.



Arthrofibrosis is the most common post-operative complication of anterior cruciate ligament (ACL) reconstruction. Risk factors and management strategies for arthrofibrosis remain unclear. The purpose of this review was to: (a) describe existing definitions of arthrofibrosis, and (b) characterize the management strategies and outcomes of arthrofibrosis treatment.


MEDLINE, EMBASE, and PubMed were searched from database inception to search date (March 21, 2016) and screened in duplicate for relevant studies. Data regarding patient demographics, indications, index surgery, management strategy, and outcomes were collected.


Twenty-five studies of primarily level IV evidence (88%) were included. A total of 647 patients (648 knees) with a mean age of 28.2 ± 1.8 years (range 14–62 years) were treated for arthrofibrosis following ACL reconstruction and followed for a mean 30.1 ± 16.9 months (range 2 months–9.6 years). Definitions of arthrofibrosis varied widely and included subjective definitions and the Shelbourne classification system. Patients were treated by one or more of: arthroscopic arthrolysis (570 patients), manipulation under anaesthesia (MUA) (153 patients), oral corticosteroids (31 patients), physiotherapy (81 patients), drop-casting (17 patients), epidural therapy combined with inpatient physiotherapy (six patients), and intra-articular interleukin-1 antagonist injection (four patients). All studies reported improvement in range of motion post-operatively, with statistically significant improvement reported for 306 patients (six studies, p range <0.001 to =0.05), and one study (18 patients) reporting significantly better results if arthrofibrosis was treated within 8 months of reconstruction (p < 0.03). The greatest improvements for extension loss were seen with drop-casting (mean 6.2° ± 0.6° improvement), whereas MUA produced the greatest improvement for flexion deficit (mean 47.8° ± 3.3° improvement).


Arthrofibrosis is poorly defined and outcome measures range varies widely. Amongst the studies included in this review, arthrofibrosis was most commonly managed surgically by arthroscopic arthrolysis, and most patients showed at least some improvement, including six studies that reported statistically significant change in ROM. In studies that used a step-wise approach to treating arthrofibrosis, more than half of patients were successfully treated without an operation. A more well-defined concept of arthrofibrosis, along with large, prospective studies will provide a clearer understanding of how to describe and manage this complication. The issue of arthrofibrosis following ACL reconstruction is clinically relevant as it represents a common complication of a commonly performed operation that nonetheless remains poorly defined and without clear treatment guidelines.

Level of evidence

Systematic Review of Level III and IV Studies, Level IV.

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