Ultrasound-Guided de Quervain's Tendon Release, Feasibility, and First Outcomes.

Background de Quervain's syndrome is one of the main tendonitis of the wrist. The hypothesis of authors was that de Quervain's syndrome could be successfully treated with a specific ultrasound-guided percutaneous procedure, as it is for trigger finger. Surgical Technique Identification of the subcompartmentalization of the first extensor compartment was performed first, using the Hiranuma's classification, prior to the surgery. Then, we assessed precisely the positions of the sensory branches of the radial nerve and drew the landmarks. Through a continuous ultrasound in-plane control, we performed a percutaneous retrograde section of each part of the first compartment of the extensors, using a dedicated surgical blade. Methods In a cadaveric study, authors proposed to assess the feasibility and safety of a new and specific procedure and then assessed their first clinical cases. Fourteen specimen wrists were analyzed with ultrasound and the procedure was performed prior to an open control of the efficiency of the release, and safety for the superficial nerves. Then, we reported the results of the 22 first patients included in the clinical series. Results In a cadaver laboratory, authors were able to identify with ultrasound the type of first compartment septation (subcompartmentalization) in 13 cases ( n = 14). The misidentification induced one incomplete release. No damages of the superficial radial nerve were observed despite close relationship. In the small series ( n = 22), the duration of surgery was 8 minutes (range: 4-18 minutes). It was performed in office surgery and no morbidities were noticed. All patients improved, from quickDASH preoperative score of 59 (range: 28-71) to quichDASH postoperative score of 9 (range: 0-25). Conclusion Ultrasound-guided percutaneous release in the de Quervain's disease is a safe and reliable procedure without specific morbidity. Great care should be taken to avoid sensory nerve injuries and to identify the correct type of subcompartmentalization with a precise ultrasound evaluation.

Arthroscopic-assisted latissimus dorsi transfer for subscapularis deficiency.

UNLABELLED: Few salvage procedures have been described in case of irreparable subscapularis tear and with variable outcomes. Latissimus dorsi transfer has been widely proposed as a transfer for irreparable posterio-superior rotator cuff tear with good outcomes. The anatomic feasibility of the latissimus dorsi to reconstruct the antero-superior irreparable rotator cuff tear has been suggested, but no clinical study has ever been published. We hypothesized that it was possible to use an arthroscopic-assisted latissimus dorsi transfer to reconstruct the subscapularis function. Five patients were enrolled. A 5-7-cm axillary incision was performed to release the latissimus dorsi tendon from its humeral insertion, the teres major muscle and the apex of the scapula. Afterwards, under arthroscopic control, a 7-mm-diameter tunnel was drilled at the anterior and superior part of the humeral head with an oblique inferior and posterior direction. The tubularized latissimus dorsi tendon was introduced into the tunnel and fixed with a ZipLoop on the posterior humeral cortex. The authors show overall good experience with this technique. LEVEL OF EVIDENCE: Level IV-a, case series.

Arthroscopic Latarjet procedure: is optimal positioning of the bone block and screws possible? A prospective computed tomography scan analysis.

HYPOTHESIS: We hypothesized that the arthroscopic Latarjet procedure could be performed with accurate bone block positioning and screw fixation with a similar rate of complications to the open Latarjet procedure. METHODS: In this prospective study, 105 shoulders (104 patients) underwent the arthroscopic Latarjet procedure performed by the same senior surgeon. The day after surgery, an independent surgeon examiner performed a multiplanar bidimensional computed tomography scan analysis. We also evaluated our learning curve by comparing 2 chronologic periods (30 procedures performed in each period), separated by an interval during which 45 procedures were performed. RESULTS: Of the 105 shoulders included in the study, 95 (90.5%) (94 patients) were evaluated. The coracoid graft was accurately positioned relative to the equator of the glenoid surface in 87 of 95 shoulders (91.5%). Accurate bone-block positioning on the axial view with "circle" evaluation was obtained for 77 of 95 shoulders (81%). This procedure was performed in a lateralized position in 7 of 95 shoulders (7.3%) and in a medialized position in 11 shoulders (11.6%). The mean screw angulation with the glenoid surface was 21°. One patient had transient axillary nerve palsy. Of the initial 104 patients, 3 (2.8%) underwent revision. The analysis of our results indicated that the screw-glenoid surface angle significantly predicted the accuracy of the bone-block positioning (P = .001). Our learning curve estimates showed that, compared with our initial period, the average surgical time decreased, and the risk of lateralization showed a statistically significant decrease during the last period (P = .006). CONCLUSIONS: This study showed that accurate positioning of the bone block onto the anterior aspect of the glenoid is possible, safe, and reproducible with the arthroscopic Latarjet procedure without additional complications compared with open surgery.

Biceps tenodesis (long head): arthroscopic keyhole technique versus arthroscopic interference screw: a prospective comparative clinical and radiographic marker study.

PURPOSE: The long head biceps tenodesis (LHBT) is an alternative to tenotomy in order to prevent Popeye sign.Biomechanical studies showed that interference screw(IFS) was the strongest fixation but there might be complications and cost. What's more, the analyses of tenodesis failures are undervalued because they only take visible deformations of the arm into account. The purpose of this study was to compare a modified arthroscopic "keyhole" LHBT (modified @KH) with an arthroscopic IFS LHBT(@IFS) using an objective method. We hypothesized that modified @KH gave similar clinical outcomes as @IFS without its hassles or drawbacks. METHODS: We present a 12-month prospective comparative study (modified @KH versus @IFS) performed by two experienced orthopedic surgeons. Modified @KH was performed on one hundred and nine patients versus @IFS that was performed on one hundred and two. A radiopaque marker was placed into the tendon. The review was conducted in the sixth month with clinical examination and plain standard X-ray to objectify the potential migration of the marker. RESULTS: Modified @KH showed 2.4 % visible deformity without any Popeye sign but 3.4 % radiographic metallic marker migrations. No complications were noted. @IFS showed 5.8 % visible deformity with 2.9 % Popeye sign and with 10.3 % radiographic metallic marker migrations;pain at tenodesis location was noted in 2 %. P value (0.13) indicates that there were no statistically significant differences. CONCLUSION: We confirm the hypothesis that the modified@KH gives clinical and radiographic outcomes at least similar to @IFS without any complications and cost. The establishment of the radiopaque marker allows us to know the exact number of failures.Level of evidence Consecutive prospective comparative clinical, Level II-1 studies.

Direct detection of Staphylococcus osteoarticular infections by use of Xpert MRSA/SA SSTI real-time PCR.

We evaluated the Xpert MRSA/SA SSTI real-time PCR assay (Cepheid, Sunnyvale, CA) directly on perioperative bone and joint samples. The sensitivity and specificity for detection of methicillin-susceptible Staphylococcus aureus (MSSA), methicillin-resistant Staphylococcus aureus (MRSA), and methicillin-resistant coagulase-negative Staphylococcus were, respectively, 100% and 98.3%, 100% and 100%, and 100% and 95.3%. The median total test turnaround time was 72 min for PCR versus 79 h for culture. Using these rapid results, appropriate antibiotic treatment could be rapidly initiated.