title: Arthroscopic double row cuff repair with suture-bridging and autologous conditioned plasma injection: Functional and structural results.
abstract: OBJECTIVE
  The double row cuff repair with suture bridging is commonly used for arthroscopic rotator cuff repair (RCR). Despite its biomechanical qualities, the rate of iterative tears with this technique is important. The aim of our study was to evaluate the effect of autologous conditioned plasma (ACP) on functional results and on the rate of iterative tears after RCR by suture bridging.
  
  
  METHODS
  A consecutive series of 65 patients who underwent arthroscopic double-row suture bridge (Speed-Bridge, Arthrex) primary cuff repair of symptomatic full-thickness supraspinatus tear (retraction <3 in the Patte classification) were evaluated. Mean patient age was 60 (+/-8). The supraspinatus was repaired by knot-less bridging (SwiveLock, Arthrex) with suture tape material. 2 homogenous groups were created (A: 33 patients, B: 32 patients). In group A, all patients received, besides the cuff repair, an intra-tendinous ACP injection. Constant scores and Simple Shoulder Tests (SST) were measured pre-operatively and after a minimum follow-up period of 12 months post-operatively. Structural integrity of the repairs was evaluated by MRI according to the Sugaya classification. Sugaya >4 were considered as iterative tears.
  
  
  RESULTS
  Mean follow-up was 19 months (+/-42) in the 2 groups. The mean quantity of ACP injected was 6ml. (+/-1.5) and no specific complication of the injection was found. Mean preoperative Constant-Murley scores were 41,2 (±7,7) and 38 (±11)in group B. Mean normalized Constant-Murley score increased from 41 points (±7) pre-operatively to 70 points (±8) post-operatively in group A and from 38 points (±11) to 73 points (±11) in group B. There were no significative differences between the two groups (P > 0.05). In group A, 31 repairs were Sugaya 1-3 (94%), vs. 30 in group B (93%), and 1 was type 4 in group A (5%) vs. 2 in group B (8%).
  
  
  CONCLUSIONS
  In both groups, RCR with suture bridging gave successful functional outcomes, with a low rate of iterative tear. In this preliminary study, the adjuvant effect of ACP injections could not be showed on both functional and structural results. Longer follow-up is needed to evaluate potential differences.
authors.affiliation: Hôpital Bichat, Orthopedic Department, 46 Rue Henri Huchard, 75018, Paris, France.
authors.forename: Jean-David
authors.initials: JD
authors.lastname: Werthel
authors.affiliation: Hôpital Bichat, Orthopedic Department, 46 Rue Henri Huchard, 75018, Paris, France.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Pelissier
authors.affiliation: Hôpital Bichat, Orthopedic Department, 46 Rue Henri Huchard, 75018, Paris, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Massin
authors.affiliation: Hôpital Bichat, Orthopedic Department, 46 Rue Henri Huchard, 75018, Paris, France.
authors.forename: Patrick
authors.initials: P
authors.lastname: Boyer
authors.affiliation: Hand institute, 6 Square Jouvenet, 75016, Paris, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Valenti
keywords: Double row; platelet-rich plasma; rotator cuff tear; suture-bridging