3Clinical Interest Ankle injuries are very common in sport As an outsider a few years ago it seemed there were quite a few gymnasts with ankle “issues”First case I was involved with at the Univ of Iowa
4Defining Anterior Ankle Impingement Footballers AnkleMorris & McMurrayChronic anterior ankle pain is commonly caused by talotibial osteophytes at the anterior portion of the ankle joint.In general, osteophytes are the secondary manifestation of osteoarthritic changes. However, repetitive minor trauma in the ankle, as seen in athletes, can induce spur formation, with radiographic characteristics similar to osteophytes. – van Dijk
6Tol and van Dijk Classification of Osteoarthritic Changes
7Etiology Footballers Ankle (Traction Spurs) The anterior joint capsule attaches on the tibia at an average of 6 mm proximal to the joint levelOn the talar side, the capsule attaches approximately 3 mm from the distal cartilage borderThe distance of capsular attachment to the most frequent location of bony spurs is thus relatively largeTraction spurs from recurrent traction to the joint capsule is not plausibleOn top of this during arthroscopy the spurs are found within the capsulevan Dijk Tol JL, van Dijk CN. Etiology of the anterior ankle impingement syndrome: a descriptive anatomical study. Foot Ankle Int 2004;25:382–6.van Dijk CN, Tol JL, Verheyen CC.Aprospective study of prognostic factors concerning the outcome of arthroscopic surgery for anterior ankle impingement.Am J Sports Med 1997;25: 737–45.Tol JL, Verheyen CP, van Dijk CN. Arthroscopic treatment of anterior impingement in the ankle. J Bone Joint Surg Br 2001;83:9–13.
8Footballer’s AnkleExamination of video showing only a minority of individuals actually reached full plantarflexion during kicking.Likely bones response to the trauma of the ball contacting the tibia and the talus.Tol 2002
9EtiologyO’Donohue (1957) considered the osteophytes to be related to direct mechanical trauma associated with the impingement of the anterior articular border of the tibia and the talar neck during forced dorsiflexion of the ankle.Bone formation is considered to be a response of the skeletal system to intermittent stress and injuryWolff’s law of bone remodelingO’Donoghue DH. Impingement exostoses of the talus and tibia. J Bone Joint SurgAm1957; 39-A:835–52.
10EtiologyIn cadavers a triangle of soft tissue- synovial fold, synovial fat, and collage tissue were found along the anterior jt line.Repetitive trauma may cause hypertrophy of the synovial layer and and create subsynovial fibrotic tissue also causing infiltration of inflammatory cells.These osteophytes decrease anterior space and compression of this tissue is more likely to occur.Berberian WS, Hecht PJ, Wapner KL, et al. Morphology of tibiotalar osteophytes in anterior ankle impingement. Foot Ankle Int 2001;22:313–7.Ferkel RD, Karzel RP, Del Pizzo W, et al. Arthroscopic treatment of anterolateral impingement of the ankle. Am J Sports Med 1991;19:440–6.
11Anteromedial and Anterolateral Impingement Murawski 2010
12Posterior Ankle Impingement Chronic posterior ankle pain is commonly caused by an os trigonum or other bony impedimenthypertrophic posterior process of the talus.Hyperplantar flexion (with dancers en pointe or demi pointe but with research does not seem to be the case)Traumatic event plus this hyperdorsiflexion to cause post ankle impingement(hard floors, ankle sprains, supination trauma)Posterior talar prominence becomes compressed between the tibia and the calcaneus during forced plantarflexion. In the presence of an os trigonum, this can lead to micromotion of the os trigonum, and pain.
13WhoTypically, patients with an anterior ankle impingement are relatively young athletes with recurrent inversion injuries of the ankleSt Pierre RK, Velazco A, Fleming LL. Impingement exostoses of the talus and fibula secondary to an inversion sprain. A case report. Foot Ankle 1983;3:282–5.Pt present with anterior ankle pain, swelling after activity, and (slightly) limited dorsiflexion. The diagnosis of anterior impingement is clinical, based on physical examination. Recognizable local pain on palpation is present anteriorly, and the osteophytes may be palpable with the ankle joint in slightplantarflexion.Van Dijk 2001If pain is anterormedial with palpation it is consiered anteromedial impingement. If pain is anterolateral with palpation it is considered anterolateral impingementForced dorsiflexion can often provoke pain but sometimes false negatives.
14Gymnastics Quite a few injuries in gymnastics Each gymnast reported an average of 3.64 injuries per 12 month period4.19 for the elite gymnasts and 3.30 for the subelite gymnastsIn relation to training hours: the elite gymnasts reported 2.63 injuries per 1000 training hours while their subelite counterparts reported 4.11 injuries per 1000 hoursKolt and Kirby 1999
15Univ of Iowa Gymnastics Over the past 1 yr we’ve had 3 surgical cases on the men’s and women’s gymnastics teams.Most bilateral but not all.2 more likely scheduled for the end of this year.1/5 male
16Univ of IowaAs I work mostly with the women’s team I reviewed the hx of all of the women’s team over the past 3 yrs.For that population 10/26 have been diagnosed with these anterior impingement.38.5%
17How does this compare? How do you define injury? 1 NCAA Result from participation in practiceAND Require attn from ATC or MDAND Restricted participation for 1 or more days2 Kolt and Kirby (18 mos prospective survey)Also reviewed injury studiesSnook- Bring attn to a doctorSands- Damaged body part that affected training
18How does this compare? Actual answer is we don’t know. When asked gymnasts say it is not uncommon.Kolt and Kirby say 30.7% of the injuries are foot and ankle.NCAA ISS thru 03-0423.0% foot and ankle at competition18.2% foot and ankle at practice
19When do we see these injuries? Unscientific and not a lot of evidence to base this onWomen/girls earlier than men/boysWhy? Two thoughts.Age at peakTrainingIntertwined....
20Age at Peak Females in the US peak elite at 15.7 yrs Must be 16 for Olympics by December of that year.(US levels) USA Gymnastics1-3 (not often done)4-10 (belt system in karate) accomplish certain skills or certain scoresEliteInternational elite FIG (Federation Internationale Gymnastique)Most College gymnasts are Level 10, Elite, or International Elite.Very few international elites at Univ of Iowa.
21Training and MiscProblem with men as well, but is more frequently seen with women (in my experience)Men have 6 eventsFX, PH, SR, V, PB, HB (Olympic Order)Women have 4 eventsV, UB, BB, FX (Olympic Order)Both w/ 2 most LE eventsMen spend a different ratio of time dedicated to UE eventsRing strength, pommel strength.Years to be able to swing pommels.
22Training and Misc Unfortunately no longer have an NCAA ISS for MGM @ Iowa 294 Injuries over the past 5 yrs.29 ankle, 6 foot (for 35 injuries)22 knee12, elbow 36 shoulder 34 wrist (82 UE)13 hand, and 7 clavicle
23Training and Misc WGM Self Fulfilling Even before this many elite coaches predict age 16 as peak.Men no stats for peak, but most agree it is in the late 20’s.Time to push and push hard.We now have foam pits in the world of gymnastics but this means more reps.Safe reps?
25How do we see these injuries Landing in a hyperdorsiflexed position.FX 31.1% of the injuries in NCAA ISSV 27.3% for a combined total of 58.4%.Warm up, cool down, S&C, other, UB, BeamSkillsMostly large skills...Mostly backwards skills.Double backflip (tucked, piked, laid out)Full-in, full-out, double-double, triple double.
26Gymnastics ExplainedNeed large skills for points (to reach a 10.0 for WGM or to increase D Score for MGM)A-E skillsDo backwards because it is easier to spot landings and more consistent.Women have to do one forward skill and that’s all they usually do.Men can do 1/2’s so you end up rolling out.Unfortunately lots of power to rotate twice and lots of force c landing 5.0x body weight at take-offs and 17.5x BW at landingsMcNitt-Gray JSame goes for vaulting
31Other Problem Events Vault! Dismounts on Men’s Pbars All other dismounting eventsNot so much for twisting activities even for back twisting
32Treatment Acute Treatment Follow impingement tx’s of shoulder Bring down during inflammatory phaseRICE and protect from activity.ROM Wall stretches, kneeling stretches,Toes under, toes out.Strengthening.
33Chronic Treatment Bring down during the inflamm phase Strengthening Assist in plantarflexion anythingSL SquatsB Heel raiseStep up plusWeighted bouncesToe WalksEccentric heel raisesIntrinsics to take up the loadMarblesJ’sTowel ScrunchesArch-upsKnee and HipCandle stick jumps upslunge jumpBox jumpsFails SLLarry Nassar Big Green Book
34RehabAll conservative rehab is stretching and strengthening –Jackie AlvisWe haven’t mentioned any stretching. Mechanical problem
35Textbook Orthopaedic Recommendations Orthopaedic recommendations are “appropriately placed injections or heel lifts”Dry needling with injection of steroid and local anesthetic can be performed under ultrasound guidance allowing a return to previous levels of activity even in elite athletes, but this technique has not been evaluated in the literature
36Goals Avoid Landing Short! Extra power at take off extra absorption of forces at landingLanding techniquerolling failstwisting failsfwd landing/backwards landing
37Gymnastics Tricks of the Trade Appearance must be uniform30 seconds for injury or bloodbeam and barsTaping no rulesAppearance should be uniformCover c coflexPosterior track strapsplace in plantar flexionElastikontherabandAnterior limitsFx and vault events tennis ball in the front of the ankle.UCLA team NCAA champs 2010
40Surgery Do they all need them? No. Fwd skills Some do. no pain c ADL’smodify gym to avoid over rotation c forward skillsSome do.limited function out of the gymfailed conservative treatmentSurgical treatment for more resistant cases has a low complication rate and a high level of success.The previously unsuccessful results of nonoperative treatment for impingement are well recognized in the literature.Van Dijk reported 62 patients with anterior ankle impingement who did not respond to nonoperative treatment and thus underwent surgery.Ferkel also reported symptoms of impingement as unresponsive to nonoperative treatment
41UI Sports Medicine Rehab Protocol WEIGHT BEARINGROMTHERAPEUTIC EXERCISESInitial post-op1-14 daysWt.bear as tolerated with crutches. Expect to d/c crutches as able to walk without a limp (approx. 7 days).0° dorsiflexion, 0-20° plantarflexion.AROM/AARPOM, Alphabet exercises, Towel stretches, towel scrunches,Progressive Rehabilitation(2-4 weeks)Full weight bearing without pain or limp.10° dorsiflexion, 35° plantarflexion.Progress with AROM/AAROM, Progress with strengthening, elastic band exercises along with previous exercises.Increased Weight bearing activities(4-6 weeks)Full ROMToe (heel) raises, BAPS board, balancing exercises, biking/ stairmaster/pool. Begin jogging.Sport Related Activities(6-8 weeks)Gradual return to sports specific training and exercises if all symptoms have resolved and full, functional ROM obtained.
42Surgery Bilateral scopes for the last three cases on the gym teams Walking right away4-6 wks of conservative rehab.8-10 wks before return to sportfrom ROM, open chain, closed chain, NM/perturbation, plyos, return to sport.
43Rehab ProtocolsPostoperative management involves a compression bandage and partial weight bearing for 3 to 5 days. Patients are instructed to actively dorsiflex.After surgery the patient was asked to be non-weightbearing for 2 days to prevent fistula formation through the portal incisions and to allow the soft tissues to settle.Ankle pumps were encouraged the day after surgery for 20 minutes daily.After 2 days, instruction was given to increase weight bearing as tolerated.A postoperative AMI view radiograph was obtained at suture removal to once again assess the removal of the osseous impingement. The soft tissue aspect of AMI was evaluated clinically by pressing in the medial soft spot and dorsiflexing the ankle joint at final follow-up.Physical therapy was commenced 1 week to 10 days after surgery once the sutures were removed.
44Rehab ProtocolsPatients discharged from hospital same day with a posterior splint. Non-weightbearing for 5 days. Treated w/ anti-inflammatory meds for 6 wks and postoperative physiotherapy consisting of early passive and active ROM and strengthening exercises, proprioceptive training, and functional exercises specific to dance technique.Nihal
45Surgical Results Diagnosis Procedure Overall Result VAS (mean ± SD) From the late 1980s, several authors have published retrospective studies on management of anterior ankle impingement. Good/excellent results varied between 57% and 67%, with an overall complication rate from 10% to 15%.90% of those without joint space narrowing had good or excellent resultsvan Dijk 199715 soft tissue impingement and 14 anterior bony impingement cases out of a 79 ankle series.Amendola 1996DiagnosisProcedure Overall Result VAS (mean ± SD)2-yr Follow Up Overall Result VAS (mean ± SD)pSoft tissue impingement4.3 ± 3.78.3 ± 3.4.02Anterior bonyimpingement3.1 ± 3.77.7 ± 3.2.008
46Recurrence?Coull and colleagues reported recurrence of osteophytes in all their 27 patients who underwent open debridement.Coull 2003At follow-up, most ankles in which osteophytes had recurred were asymptomatic. It is not the osteophyte itself that is painful but the compression of the synovial fold or fibrotic (scar) tissue causes pain.van Dijk 20011/11 Reccurence in elite dancers. 9 years following initial surgery.Nihal 2005.Patients who had osteophytes without joint space narrowing (grade I, 82% good/excellent results) showed significantly better results than did patients who had joint space narrowing (grade II, 50% good/excellent results;20/30 Recurrent exostoses in 5-8 yearsTol 2006
47SurgeryThis has allowed grade B recommendations for the use of ankle arthroscopy for the treatment of ankle impingementGrading and Assigning a Category of Recommendation for Summaries or Reviews of Orthopaedic StudiesA Good evidence (Level I studies with consistent findings) for or against recommending interventionB Fair evidence (Level II or III studies with consistent findings) for or against recommending interventionC Poor-quality evidence (Level IV or V studies with consistent findings) for or against recommending interventionI Insufficient or conflicting evidence not allowingGlazebrook 2009Evidence based indications for ankle surgery.Level I High-quality randomized trials withstatistically significant difference or nostatistically significant difference but narrowconfidence intervals. Systematic reviews ofLevel I RCT (and study results werehomogeneous).Level II Lesser-quality RCT (e.g., 80% follow-up, noblinding, or improper randomization).Prospective comparative studies. Systematicreviews of Level II studies or Level Istudies with inconsistent results.Level III Case-control studies. Retrospectivecomparative studies. Systematic reviews ofLevel III studies.Level IV Case seriesLevel V Expert opinion
48Summary Anterior ankle impingement is relatively common in gymnasts There are some conservative treatments that can be usedSurgery is effective in treating this conditionRehabilitation is relatively straight forward