Use of a modified Outerbridge-Kashiwagi procedure for the treatment of posttraumatic elbow sequelae

Resection Outcomes of Posttraumatic Elbow Heterotopic Ossification: Multicenter Case Series at a Minimum 5-Year Follow-Up

BACKGROUND

Heterotopic ossification (HO), a common complication after elbow trauma, causes severe limb disability. Resection is usually performed for posttraumatic elbow HO (PTEHO) to regain mobility, and although heavily reported, there has been no long-term (minimum, 5-year) follow-up.

METHODS

A total of 173 patients who underwent PTEHO resection were followed up for a minimum of 5 years in 4 hospitals between January of 2015 and August of 2016. Demographics, disease characteristics, and preoperative and minimum 5-year assessments were collected. After controlling for potential variables when dividing long-term range of motion (ROM) into less than 120 degrees and greater than or equal to 120 degrees, risk factors for ROM recovery to modern functional arc were identified through multivariable regression analysis.

RESULTS

Clinically important improvements in ROM from 39 degrees to 124 degrees were obtained at final follow-up, and 74.6% achieved modern functional arc (≥120 degrees). Mayo Elbow Performance Index had clinically important increases from 69 to 93 points at final follow-up, and 96.5% reported excellent to good. Pain (numeric rating scale, from 1.9 to 0.6 points) and ulnar nerve symptoms were improved. The total complication rate was 15.6%, including new-onset ulnar nerve symptoms (5.8%), HO recurrence with clinical symptoms (6.9%), elbow instability (1.7%), and joint infection (1.2%). Previously reported high body mass index ( P = 0.002) and long disease duration ( P = 0.033) were equally identified as risk factors for not achieving modern functional arc; meanwhile, tobacco use ( P = 0.024) and ankylosed HO ( P < 0.001) were found to be new risk factors.

CONCLUSIONS

Resection yields satisfactory outcomes for PTEHO at long-term follow-up of a minimum of 5 years. High body mass index, tobacco use, long disease duration, and ankylosed HO would negatively affect ROM recovery to a modern functional arc (≥120 degrees).

CLINICAL QUESTION/LEVEL OF EVIDENCE

Risk, III.

Does an Internal Joint Stabilizer and Standardized Protocol Prevent Recurrent Instability in Complex Persistent Elbow Instability?

BACKGROUND

The treatment of complex persistent elbow instability after trauma is challenging. Previous studies on treatments have reported varied surgical techniques, which makes it difficult to establish a therapeutic algorithm. Furthermore, the surgical procedures may not sufficiently restore elbow stability, even with an additional device, and a noted high rate of arthritis progression.While a recently developed internal joint stabilizer effectively treats elbow instability, its clinical application for complex persistent elbow instability is limited and the standardized protocol is not well described. Additionally, we want to know whether the arthritis progression will cause a negative impact on the functional outcomes of complex persistent elbow instability.

QUESTIONS/PURPOSES

(1) Does treatment of complex persistent elbow instability with a hinged internal joint stabilizer and a standardized protocol prevent recurrent instability and other complications? (2) What are the pre- to postoperative improvements in pain, disability, elbow performance, and ROM? (3) Is the development of post-traumatic arthritis associated with worse pain, disability, elbow performance, and ROM?

METHODS

Between September 2014 and October 2019, we treated 22 patients for persistent dislocation or subluxation after initial treatment of traumatic elbow fracture-dislocations. Of those, we considered patients who were at least 20 years of age, with an interval of 6 weeks or more between the injury (initial treatment) and the index reconstructive procedure, which had been performed at our institute, as potentially eligible. During that time, we used an internal joint stabilizer with a standardized protocol for posttraumatic complex persistent elbow instability. We performed total elbow replacements in patients older than 50 years who had advanced elbow arthritis. Based on that, 82% (18 of 22) of patients were eligible; 14% (3 of 22) were excluded because total elbow replacements was undertaken, and another 5% (1 of 22) were lost before the minimum study follow-up of 1 year (median 24 months [range 12 to 63]), leaving 64% (14 of 22) for analysis in this retrospective study. We treated 14 patients (14 elbows) with posttraumatic complex persistent elbow instability with an internal joint stabilizer and a standardized protocol that comprised debridement arthroplasty with ulnar neurolysis, restoration of bony and ligamentous (reattachment) structures, application of an internal joint stabilizer, and early rehabilitation. There were eight men and six women in this study, with a median (range) age of 44 years (21 to 68). The initial elbow fracture-dislocation injury pattern was a terrible triad injury in seven patients, a posterolateral rotatory injury in four patients, and a posterior Monteggia fracture in three patients. Preoperative and follow-up radiographs were reviewed for evidence of recurrent instability and arthritis. Complications such as wound infection, seroma, neurovascular injury, and hardware complications were ascertained through chart review. Preoperative and postoperative VAS score for pain, DASH, and Mayo Elbow Performance Scores (MEPS) were collected and compared. Furthermore, extension-flexion and supination-pronation arcs were collected by chart review. We divided the patients into two groups according to whether or not they developed posttraumatic arthritis. We then presented the differences between pain, disability, elbow performance, and ROM. The hinged internal joint stabilizer was removed using another open procedure under general anesthesia 6 to 8 weeks after surgery.

RESULTS

There were no recurrent instability during and after device removal. Seven patients developed complications, including wound infection, seroma, neurovascular injury, hardware complications, and heterotopic ossification. Two patients had complications related to internal joint stabilizers and three had complications linked to radial head prostheses. Median (range) preoperative to postoperative changes included decreased pain (VAS 5 [2 to 9] to 0 [0 to 3], difference of medians -5; p < 0.001), decreased disability (DASH 41 [16 to 66] to 7 [0 to 46], difference of medians -34; p < 0.001), improved function (MEPS 60 [25 to 70] to 95 [65 to 100], difference of medians 35; p < 0.001), improved extension-flexion arc (40° [10° to 70°] to 113° [75° to 140°], difference of medians 73°; p < 0.001), and supination-pronation arc (78° [30° to 165°] to 148° [70° to 175°], difference of medians 70°; p < 0.001). Between patients with and without development of post-traumatic arthritis, there were no differences in postoperative pain (VAS 0 [0 to 3] to 0 [0 to 1], difference of medians 0; p = 0.17), disability (DASH 7 [0 to 46] to 7 [0 to 18], difference of medians 0; p = 0.40), function (MEPS 80 [65 to 100] to 95 [75 to 100], difference of medians 15; p = 0.79), extension-flexion arc (105° [75° to 140°] to 115° [80° to 125°], difference of medians 10°; p = 0.40), and supination-pronation arc (155° [125° to 175°] to 135° [70° to 160°], difference of medians -20°; p < 0.18).

CONCLUSION

In this small, retrospective study, we found that an internal joint stabilizer with a standardized treatment protocol could maintain concentric reduction while allowing early functional motion, and that it could improve clinical outcomes for patients with complex persistent elbow instability. However, patients must be counseled that the complications related to the radial head prostheses may occur, and that the benefits of early motion must compensate for an additional removal procedure and the risk of seroma formation.

LEVEL OF EVIDENCE

Level IV, therapeutic study.

Long-term outcomes of open arthrolysis combined with radial head arthroplasty for post-traumatic elbow stiffness: results are durable over 8 years

BACKGROUND

Post-trauma elbow stiffness (PTES) is a common complication after elbow trauma that causes severe upper limb disability. Open elbow arthrolysis (OEA) with radial head arthroplasty (RHA) is an effective method to treat PTES with rotation limitation, or persistent pain/instability after radial head resection. However, no long-term results have been reported for this technique. This study aimed to show the clinical and radiographic outcomes of OEA with RHA over 8 years and compare its efficacy at 3 years (short-term).

METHODS

Patients with PTES treated by OEA with RHA between September 2010 and December 2012 were retrospectively reviewed. Seventeen patients were followed up over 8 years (range, 100-106 months). A bipolar prosthesis of RHA was performed during OEA. Preoperative, 3-year, and 8-year elbow and forearm motion, upper limb function, radiographic outcomes, and complications were recorded.

RESULTS

Clinically important improvements in elbow motion and forearm rotation were obtained, from 34° and 58° preoperatively, to 109° and 135° at 3 years, which were maintained over 8 years, to 113° (P = .262) and 134° (P = .489). The Mayo Elbow Performance Index had clinically important increases from the preoperative level of 58 to 94 points at 3 years, and was maintained over 8 years (95 points, P = .422), with 100% reporting excellent to good outcomes. Pain and nerve symptoms were also improved. Complications consisted of new-onset ulnar nerve symptoms in 1 patient, nonclinically significant heterotopic ossification recurrence in 3, humeroulnar arthritis exacerbation in 4, and periprosthetic lucency in 8.

CONCLUSIONS

OEA with RHA yielded satisfactory short-term outcomes for PTES at 3 years, with substantial improvements in elbow mobility and function, and the results were durable over the long term (8 years).

Surgical management for primary osteoarthritis of the elbow

The objective of this review is to summarize the surgical options for primary osteoarthritis of the elbow, reported clinical outcomes, and suggested indications in previous literatures. The surgical management of primary elbow arthritis has evolved because of an improved understanding of pathologic mechanisms and manifestations as well as the development of novel surgical techniques and devices. Osteocapsular arthroplasty (OCA), elbow debridement, distraction arthroplasty, and total elbow arthroplasty (TEA) have been employed for managing elbow osteoarthritis. Elbow debridement and OCA can be helpful in most cases of symptomatic elbow arthritis. TEA is usually recommended for end-stage arthritis in elderly patients after prosthetic implants have been in place for long periods or after complications. Distraction arthroplasty might find a place in the treatment of younger, active patients with end-stage arthritis.

Clinical outcomes of a combined arthroscopic and mini-open Outerbridge-Kashiwagi procedure for elbow osteoarthritis

BACKGROUND

To evaluate the short-term clinical outcomes of a modified Outerbridge-Kashiwagi (O-K) procedure in the treatment of elbow osteoarthritis.

METHODS

Between January 2012 and December 2016, 27 patients with elbow osteoarthritis were treated with a modified O-K procedure combining mini-open and arthroscopic technique in our institution. All patients with primary osteoarthritis and post-traumatic degenerative osteoarthritis of the elbow were included in the study if they had undergone the modified O-K procedure. Clinical outcomes were assessed using the visual analog scale (VAS), degree of flexion, extension loss, arc of motion, Mayo Elbow Performance Score (MEPS), and radiographs.

RESULTS

Twenty-five patients with a mean age of 47.2 years (range, 21-69 years) at surgery were followed up for a mean of 54.5 months (range, 27-86 months). The VAS improved from 8.0 ± 1.4 (range, 6-10) preoperatively to 1.3 ± 1.1 (range, 0-3) at the final follow-up (P < .001), degree of flexion from 115.2° ± 12.0° (range, 90°-135°) to 130.6° ± 6.3° (range, 120°-140°) (P < .001), extension loss from 31.2° ± 15.0° (range, 10°-60°) to 10.2° ± 7.7° (range, 0°-30°) (P < .001), arc of motion from 84.0° ± 18.8° (range, 55°-120°) to 120.4° ± 9.3° (range, 105°-135°) (P < .001), and MEPS from 55.8 ± 8.1 (range, 40-70) to 88.4 ± 7.2 (range, 70-100) (P < .001). Radiographs at the final follow-up showed that 9 patients (36%) had significant recurrence of bone formation within the fenestration of the olecranon fossa. One patient developed delayed-onset ulnar neuropathy, with only slight numbness in the ulnar nerve distribution 6 months after surgery.

CONCLUSIONS

The modified O-K procedure is safe and effective in pain relief and function restoration in patients with elbow osteoarthritis.

Open elbow arthrolysis for post-traumatic elbow stiffness: an update

Post-traumatic elbow stiffness is a disabling condition that remains challenging for upper limb surgeons. Open elbow arthrolysis is commonly used for the treatment of stiff elbow when conservative therapy has failed. Multiple questions commonly arise from surgeons who deal with this disease. These include whether the patient has post-traumatic stiff elbow, how to evaluate the problem, when surgery is appropriate, how to perform an excellent arthrolysis, what the optimal postoperative rehabilitation is, and how to prevent or reduce the incidence of complications. Following these questions, this review provides an update and overview of post-traumatic elbow stiffness with respect to the diagnosis, preoperative evaluation, arthrolysis strategies, postoperative rehabilitation, and prevention of complications, aiming to provide a complete diagnosis and treatment path. Cite this article: Bone Joint Open 2020;1-9:576-584.

Outerbridge-Kashiwagi Procedure for the Treatment of a Supracondylar Humerus Fracture Malunion (O-K Procedure)

The Outerbridge-Kashiwagi (O-K) procedure has conventionally been used for the treatment of osteoarthritis of the elbow and to treat posttraumatic sequelae including posttraumatic arthritis, stiffness, contracture, and ulnar neuritis. The procedure involves exposure of the posterior elbow joint as well creating a window posteriorly through the olecranon fossa to target anterior aspects of the elbow. Several case series have shown the O-K procedure to have good functional outcomes with minimal complications. Used mostly for the surgical treatment of adult osteoarthritis, the O-K procedure has not been previously described for the treatment of a pediatric supracondylar humerus fracture malunion. This article and accompanying video will present the pearls and discuss the technique of the O-K procedure used to treat the loss of elbow flexion as a sequelae of supracondylar humerus fracture malunion.